diff --git a/code/__DEFINES/status_effects.dm b/code/__DEFINES/status_effects.dm
index d9f5f22f79c..4c1ac003864 100644
--- a/code/__DEFINES/status_effects.dm
+++ b/code/__DEFINES/status_effects.dm
@@ -35,6 +35,7 @@
 
 #define STATUS_EFFECT_BLOODDRUNK /datum/status_effect/blooddrunk //Stun immunity and greatly reduced damage taken
 
+#define STATUS_EFFECT_DASH /datum/status_effect/dash // Grants the ability to dash, expiring after a few secodns
 
 #define STATUS_EFFECT_SPEEDLEGS /datum/status_effect/speedlegs //Handles cling speed boost and chemical cost.
 
@@ -70,6 +71,8 @@
 
 #define STATUS_EFFECT_SAWBLEED /datum/status_effect/saw_bleed //if the bleed builds up enough, takes a ton of damage
 
+#define STATUS_EFFECT_GROUNDPOUND /datum/status_effect/stacking/ground_pound //if hit twice, the third attack will fling the target
+
 #define STATUS_EFFECT_TELEPORTSICK /datum/status_effect/teleport_sickness //increasing debuffs as you rapidly teleport.
 
 #define STATUS_EFFECT_PACIFIED /datum/status_effect/pacifism //forces the pacifism trait
diff --git a/code/datums/beam.dm b/code/datums/beam.dm
index dab9cbbf6a8..00c3ecdb79b 100644
--- a/code/datums/beam.dm
+++ b/code/datums/beam.dm
@@ -131,6 +131,33 @@
 	..()
 	A.ex_act(1)
 
+/obj/effect/ebeam/disintegration_telegraph
+	alpha = 100
+	layer = ON_EDGED_TURF_LAYER
+
+/obj/effect/ebeam/disintegration
+	layer = ON_EDGED_TURF_LAYER
+
+/obj/effect/ebeam/disintegration/Crossed(atom/A, oldloc)
+	..()
+	if(!isliving(A))
+		return
+	var/mob/living/L = A
+	var/damage = 50
+	if(L.stat == DEAD)
+		visible_message("<span class='danger'>[L] is disintegrated by the beam!</span>")
+		L.dust()
+	if(isliving(owner.origin))
+		var/mob/living/O = owner.origin
+		if(faction_check(O.faction, L.faction, FALSE))
+			return
+		damage = 70 - ((O.health / O.maxHealth) * 20)
+	playsound(L,'sound/weapons/sear.ogg', 50, TRUE, -4)
+	to_chat(L, "<span class='userdanger'>You're struck by a disintegration laser!</span>")
+	var/limb_to_hit = L.get_organ(pick(BODY_ZONE_HEAD, BODY_ZONE_CHEST, BODY_ZONE_R_ARM, BODY_ZONE_L_ARM, BODY_ZONE_R_LEG, BODY_ZONE_L_LEG))
+	var/armor = L.run_armor_check(limb_to_hit, LASER)
+	L.apply_damage(damage, BURN, limb_to_hit, armor)
+
 /atom/proc/Beam(atom/BeamTarget,icon_state="b_beam",icon='icons/effects/beam.dmi',time=50, maxdistance=10,beam_type=/obj/effect/ebeam,beam_sleep_time=3)
 	var/datum/beam/newbeam = new(src,BeamTarget,icon,icon_state,time,maxdistance,beam_type,beam_sleep_time)
 	INVOKE_ASYNC(newbeam, /datum/beam.proc/Start)
diff --git a/code/datums/status_effects/buffs.dm b/code/datums/status_effects/buffs.dm
index 77530cd2778..12628c3addb 100644
--- a/code/datums/status_effects/buffs.dm
+++ b/code/datums/status_effects/buffs.dm
@@ -134,6 +134,18 @@
 	if(islist(owner.stun_absorption) && owner.stun_absorption["blooddrunk"])
 		owner.remove_stun_absorption("blooddrunk")
 
+/obj/screen/alert/status_effect/dash
+	name = "Dash"
+	desc = "Your have the ability to dash!"
+	icon = 'icons/mob/actions/actions.dmi'
+	icon_state = "genetic_jump"
+
+/datum/status_effect/dash
+	id = "dash"
+	duration = 5 SECONDS
+	tick_interval = 0
+	alert_type = /obj/screen/alert/status_effect/dash
+
 /datum/status_effect/bloodswell
 	id = "bloodswell"
 	duration = 30 SECONDS
diff --git a/code/datums/status_effects/debuffs.dm b/code/datums/status_effects/debuffs.dm
index a7bd33b82e2..75e8fd87a1e 100644
--- a/code/datums/status_effects/debuffs.dm
+++ b/code/datums/status_effects/debuffs.dm
@@ -137,6 +137,33 @@
 	else
 		new /obj/effect/temp_visual/bleed(get_turf(owner))
 
+/datum/status_effect/stacking/ground_pound
+	id = "ground_pound"
+	tick_interval = 5 SECONDS
+	stack_threshold = 3
+	max_stacks = 3
+	reset_ticks_on_stack = TRUE
+	var/mob/living/simple_animal/hostile/asteroid/big_legion/latest_attacker
+
+/datum/status_effect/stacking/ground_pound/on_creation(mob/living/new_owner, stacks_to_apply, mob/living/attacker)
+	. = ..()
+	if(.)
+		latest_attacker = attacker
+
+/datum/status_effect/stacking/ground_pound/add_stacks(stacks_added, mob/living/attacker)
+	. = ..()
+	if(.)
+		latest_attacker = attacker
+	if(stacks != stack_threshold)
+		return TRUE
+
+/datum/status_effect/stacking/ground_pound/stacks_consumed_effect()
+	flick("legion-smash", latest_attacker)
+	addtimer(CALLBACK(latest_attacker, /mob/living/simple_animal/hostile/asteroid/big_legion/.proc/throw_mobs), 1 SECONDS)
+
+/datum/status_effect/stacking/ground_pound/on_remove()
+	latest_attacker = null
+
 /datum/status_effect/teleport_sickness
 	id = "teleportation sickness"
 	duration = 30 SECONDS
diff --git a/code/datums/status_effects/status_effect.dm b/code/datums/status_effects/status_effect.dm
index 590888b2c43..d8c4ebc3298 100644
--- a/code/datums/status_effects/status_effect.dm
+++ b/code/datums/status_effects/status_effect.dm
@@ -169,12 +169,7 @@
 	var/max_stacks //stacks cannot exceed this amount
 	var/consumed_on_threshold = TRUE //if status should be removed once threshold is crossed
 	var/threshold_crossed = FALSE //set to true once the threshold is crossed, false once it falls back below
-	var/overlay_file
-	var/underlay_file
-	var/overlay_state // states in .dmi must be given a name followed by a number which corresponds to a number of stacks. put the state name without the number in these state vars
-	var/underlay_state // the number is concatonated onto the string based on the number of stacks to get the correct state name
-	var/mutable_appearance/status_overlay
-	var/mutable_appearance/status_underlay
+	var/reset_ticks_on_stack = FALSE //resets the current tick timer if a stack is gained
 
 /datum/status_effect/stacking/proc/threshold_cross_effect() //what happens when threshold is crossed
 
@@ -208,9 +203,9 @@
 /datum/status_effect/stacking/proc/add_stacks(stacks_added)
 	if(stacks_added > 0 && !can_gain_stacks())
 		return FALSE
-	owner.cut_overlay(status_overlay)
-	owner.underlays -= status_underlay
 	stacks += stacks_added
+	if(reset_ticks_on_stack)
+		tick_interval = world.time + initial(tick_interval)
 	if(stacks > 0)
 		if(stacks >= stack_threshold && !threshold_crossed) //threshold_crossed check prevents threshold effect from occuring if changing from above threshold to still above threshold
 			threshold_crossed = TRUE
@@ -223,13 +218,9 @@
 		if(stacks_added > 0)
 			tick_interval += delay_before_decay //refreshes time until decay
 		stacks = min(stacks, max_stacks)
-		status_overlay.icon_state = "[overlay_state][stacks]"
-		status_underlay.icon_state = "[underlay_state][stacks]"
-		owner.add_overlay(status_overlay)
-		owner.underlays += status_underlay
 	else
 		fadeout_effect()
-		qdel(src) //deletes status if stacks fall under one
+		qdel(src) //deletes status if stacks fall under one	return
 
 /datum/status_effect/stacking/on_creation(mob/living/new_owner, stacks_to_apply)
 	. = ..()
@@ -239,25 +230,6 @@
 /datum/status_effect/stacking/on_apply()
 	if(!can_have_status())
 		return FALSE
-	status_overlay = mutable_appearance(overlay_file, "[overlay_state][stacks]")
-	status_underlay = mutable_appearance(underlay_file, "[underlay_state][stacks]")
-	var/icon/I = icon(owner.icon, owner.icon_state, owner.dir)
-	var/icon_height = I.Height()
-	status_overlay.pixel_x = -owner.pixel_x
-	status_overlay.pixel_y = FLOOR(icon_height * 0.25, 1)
-	status_overlay.transform = matrix() * (icon_height/world.icon_size) //scale the status's overlay size based on the target's icon size
-	status_underlay.pixel_x = -owner.pixel_x
-	status_underlay.transform = matrix() * (icon_height/world.icon_size) * 3
-	status_underlay.alpha = 40
-	owner.add_overlay(status_overlay)
-	owner.underlays += status_underlay
-	return ..()
-
-/datum/status_effect/stacking/Destroy()
-	if(owner)
-		owner.cut_overlay(status_overlay)
-		owner.underlays -= status_underlay
-	QDEL_NULL(status_overlay)
 	return ..()
 
 /// Status effect from multiple sources, when all sources are removed, so is the effect
diff --git a/code/modules/mining/equipment/kinetic_crusher.dm b/code/modules/mining/equipment/kinetic_crusher.dm
index 957a6e9a53e..08ae7a1f3bc 100644
--- a/code/modules/mining/equipment/kinetic_crusher.dm
+++ b/code/modules/mining/equipment/kinetic_crusher.dm
@@ -90,6 +90,14 @@
 	. = ..()
 	if(!wielded)
 		return
+	if(user.has_status_effect(STATUS_EFFECT_DASH) && user.a_intent == INTENT_HELP)
+		if(user.throw_at(target, range = 3, speed = 3, spin = FALSE, diagonals_first = TRUE))
+			playsound(src, 'sound/effects/stealthoff.ogg', 50, 1, 1)
+			user.visible_message("<span class='warning'>[user] dashes!</span>")
+		else
+			to_chat(user, "<span class='warning'>Something prevents you from dashing!</span>")
+		user.remove_status_effect(STATUS_EFFECT_DASH)
+		return
 	if(!proximity_flag && charged)//Mark a target, or mine a tile.
 		var/turf/proj_turf = user.loc
 		if(!isturf(proj_turf))
@@ -348,6 +356,20 @@
 /obj/item/crusher_trophy/miner_eye/on_mark_detonation(mob/living/target, mob/living/user)
 	user.apply_status_effect(STATUS_EFFECT_BLOODDRUNK)
 
+//legion
+
+/obj/item/crusher_trophy/empowered_legion_skull
+	name = "empowered legion skull"
+	desc = "A powerful looking skull with glowing red eyes."
+	icon_state = "ashen_skull"
+	denied_type = /obj/item/crusher_trophy/empowered_legion_skull
+
+/obj/item/crusher_trophy/empowered_legion_skull/effect_desc()
+	return "mark detonation grants the ability to dash a short distance on help intent"
+
+/obj/item/crusher_trophy/empowered_legion_skull/on_mark_detonation(mob/living/target, mob/living/user)
+	user.apply_status_effect(STATUS_EFFECT_DASH)
+
 //ash drake
 /obj/item/crusher_trophy/tail_spike
 	desc = "A spike taken from an ash drake's tail. Suitable as a trophy for a kinetic crusher."
diff --git a/code/modules/mob/living/simple_animal/hostile/hostile.dm b/code/modules/mob/living/simple_animal/hostile/hostile.dm
index 526053b3c15..65cc8cee9c0 100644
--- a/code/modules/mob/living/simple_animal/hostile/hostile.dm
+++ b/code/modules/mob/living/simple_animal/hostile/hostile.dm
@@ -59,6 +59,8 @@
 	wanted_objects = typecacheof(wanted_objects)
 
 /mob/living/simple_animal/hostile/Destroy()
+	if(lose_patience_timer_id)
+		deltimer(lose_patience_timer_id)
 	targets_from = null
 	target = null
 	return ..()
@@ -507,6 +509,8 @@
 //These two procs handle losing our target if we've failed to attack them for
 //more than lose_patience_timeout deciseconds, which probably means we're stuck
 /mob/living/simple_animal/hostile/proc/GainPatience()
+	if(QDELING(src))
+		return
 	if(lose_patience_timeout)
 		LosePatience()
 		lose_patience_timer_id = addtimer(CALLBACK(src, .proc/LoseTarget), lose_patience_timeout, TIMER_STOPPABLE)
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/ancient_robot.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/ancient_robot.dm
index 9a2f40660c1..d69402d348c 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/ancient_robot.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/ancient_robot.dm
@@ -71,7 +71,7 @@ Difficulty: Hard
 	del_on_death = TRUE
 	loot = list(/obj/structure/closet/crate/necropolis/ancient)
 	crusher_loot = list(/obj/structure/closet/crate/necropolis/ancient/crusher)
-	internal_type = /obj/item/gps/internal/ancient
+	internal_gps = /obj/item/gps/internal/ancient
 	medal_type = BOSS_MEDAL_ROBOT
 	score_type = ROBOT_SCORE
 	deathmessage = "explodes into a shower of alloys"
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/blood_drunk_miner.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/blood_drunk_miner.dm
index dd9eb59770d..12fe34e1163 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/blood_drunk_miner.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/blood_drunk_miner.dm
@@ -44,7 +44,7 @@ Difficulty: Medium
 	wander = FALSE
 	del_on_death = TRUE
 	blood_volume = BLOOD_VOLUME_NORMAL
-	internal_type = /obj/item/gps/internal/miner
+	internal_gps = /obj/item/gps/internal/miner
 	medal_type = BOSS_MEDAL_MINER
 	var/obj/item/melee/energy/cleaving_saw/miner/miner_saw
 	var/time_until_next_transform = 0
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/bubblegum.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/bubblegum.dm
index 57cad951ec1..5875e70ae67 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/bubblegum.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/bubblegum.dm
@@ -59,7 +59,7 @@ Difficulty: Hard
 	var/enrage_till = 0
 	var/enrage_time = 70
 	var/revving_charge = FALSE
-	internal_type = /obj/item/gps/internal/bubblegum
+	internal_gps = /obj/item/gps/internal/bubblegum
 	medal_type = BOSS_MEDAL_BUBBLEGUM
 	score_type = BUBBLEGUM_SCORE
 	deathmessage = "sinks into a pool of blood, fleeing the battle. You've won, for now... "
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm
index 261b007ffa6..456f3725448 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm
@@ -47,7 +47,7 @@ Difficulty: Very Hard
 	pixel_x = -32
 	del_on_death = TRUE
 	universal_speak = TRUE
-	internal_type = /obj/item/gps/internal/colossus
+	internal_gps = /obj/item/gps/internal/colossus
 	medal_type = BOSS_MEDAL_COLOSSUS
 	score_type = COLOSSUS_SCORE
 	crusher_loot = list(/obj/structure/closet/crate/necropolis/colossus/crusher)
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/drake.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/drake.dm
index f90e0d6374c..f776ad641b7 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/drake.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/drake.dm
@@ -55,7 +55,7 @@ Difficulty: Medium
 	butcher_results = list(/obj/item/stack/ore/diamond = 5, /obj/item/stack/sheet/sinew = 5, /obj/item/stack/sheet/animalhide/ashdrake = 10, /obj/item/stack/sheet/bone = 30)
 	var/swooping = NONE
 	var/player_cooldown = 0
-	internal_type = /obj/item/gps/internal/dragon
+	internal_gps = /obj/item/gps/internal/dragon
 	medal_type = BOSS_MEDAL_DRAKE
 	score_type = DRAKE_SCORE
 	deathmessage = "collapses into a pile of bones, its flesh sloughing away."
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/hierophant.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/hierophant.dm
index 6d96d6aaeaf..5d26805365d 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/hierophant.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/hierophant.dm
@@ -58,7 +58,7 @@ Difficulty: Hard
 	loot = list(/obj/item/hierophant_club)
 	crusher_loot = list(/obj/item/hierophant_club, /obj/item/crusher_trophy/vortex_talisman)
 	wander = FALSE
-	internal_type = /obj/item/gps/internal/hierophant
+	internal_gps = /obj/item/gps/internal/hierophant
 	medal_type = BOSS_MEDAL_HIEROPHANT
 	score_type = HIEROPHANT_SCORE
 	del_on_death = TRUE
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/legion.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/legion.dm
index d9701363d14..17f798ac163 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/legion.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/legion.dm
@@ -18,38 +18,43 @@ Difficulty: Medium
 
 /mob/living/simple_animal/hostile/megafauna/legion
 	name = "Legion"
-	health = 800
-	maxHealth = 800
-	icon_state = "legion"
-	icon_living = "legion"
+	health = 2500
+	maxHealth = 2500
+	icon_state = "mega_legion"
+	icon_living = "mega_legion"
 	desc = "One of many."
-	icon = 'icons/mob/lavaland/legion.dmi'
+	icon = 'icons/mob/lavaland/96x96megafauna.dmi'
 	attacktext = "chomps"
 	attack_sound = 'sound/misc/demon_attack1.ogg'
 	speak_emote = list("echoes")
 	armour_penetration_percentage = 50
-	melee_damage_lower = 25
-	melee_damage_upper = 25
+	melee_damage_lower = 40
+	melee_damage_upper = 40
 	wander = FALSE
 	speed = 2
 	ranged = TRUE
 	del_on_death = TRUE
 	retreat_distance = 5
 	minimum_distance = 5
+	pixel_x = -32
 	ranged_cooldown_time = 20
-	var/size = 5
 	var/charging = FALSE
-	internal_type = /obj/item/gps/internal/legion
+	var/firing_laser = FALSE
+	internal_gps = /obj/item/gps/internal/legion
 	medal_type = BOSS_MEDAL_LEGION
 	score_type = LEGION_SCORE
-	pixel_y = -90
-	pixel_x = -75
-	loot = list(/obj/item/stack/sheet/bone = 3)
+	loot = list(/obj/item/staff/storm)
+	crusher_loot = list(/obj/item/staff/storm, /obj/item/crusher_trophy/empowered_legion_skull)
 	vision_range = 13
 	elimination = TRUE
 	appearance_flags = 0
 	mouse_opacity = MOUSE_OPACITY_ICON
 	stat_attack = UNCONSCIOUS // Overriden from /tg/ - otherwise Legion starts chasing its minions
+	appearance_flags = 512
+
+/mob/living/simple_animal/hostile/megafauna/legion/Initialize(mapload)
+	. = ..()
+	transform *= 2
 
 /mob/living/simple_animal/hostile/megafauna/legion/AttackingTarget()
 	. = ..()
@@ -61,81 +66,108 @@ Difficulty: Medium
 
 /mob/living/simple_animal/hostile/megafauna/legion/OpenFire(the_target)
 	if(world.time >= ranged_cooldown && !charging)
-		if(prob(75))
-			var/mob/living/simple_animal/hostile/asteroid/hivelordbrood/legion/A = new(loc)
-			A.GiveTarget(target)
-			A.friends = friends
-			A.faction = faction
-			ranged_cooldown = world.time + ranged_cooldown_time
-		else
+		if(prob(30))
 			visible_message("<span class='warning'><b>[src] charges!</b></span>")
 			SpinAnimation(speed = 20, loops = 5, parallel = FALSE)
 			ranged = FALSE
 			retreat_distance = 0
 			minimum_distance = 0
+			move_to_delay = 2
 			speed = 0
 			charging = TRUE
-			spawn(50)
-				reset_charge()
+			ranged_cooldown = world.time + 3 SECONDS
+			SLEEP_CHECK_DEATH(3 SECONDS)
+			set_ranged()
+		else if(prob(60))
+			firing_laser = TRUE
+			var/beam_angle = get_angle(src, locate(target.x - 1, target.y, target.z)) // -1 to account for the legion sprite offset.
+			var/turf/target_location = locate(x + (50 * sin(beam_angle)), y + (50 * cos(beam_angle)), z)
+			var/beam_time = 0.25 SECONDS + ((health / maxHealth) SECONDS)
+			playsound(loc, 'sound/effects/basscannon.ogg', 200, TRUE)
+			Beam(target_location, icon_state = "death_laser", time = beam_time, maxdistance = INFINITY, beam_type = /obj/effect/ebeam/disintegration_telegraph)
+			addtimer(CALLBACK(src, .proc/fire_disintegration_laser, target_location), beam_time)
+			ranged_cooldown = world.time + beam_time + 2 SECONDS
+			SLEEP_CHECK_DEATH(beam_time + 2 SECONDS)
+			firing_laser = FALSE
+		else if(prob(40))
+			var/mob/living/simple_animal/hostile/asteroid/big_legion/A = new(loc)
+			A.GiveTarget(target)
+			A.friends = friends
+			A.faction = faction
+			visible_message("<span class='danger'>A monstrosity emerges from [src]</span>",
+			"<span class='userdanger'>You summon a big [A]!</span>")
+			ranged_cooldown = world.time + 5 SECONDS
+		else
+			var/mob/living/simple_animal/hostile/asteroid/hivelord/legion/tendril/A = new(loc)
+			A.GiveTarget(target)
+			A.friends = friends
+			A.faction = faction
+			visible_message("<span class='danger'>A [A] emerges from [src]!</span>",
+			"<span class='userdanger'>You summon a [A]!</span>")
+			ranged_cooldown = world.time + 2 SECONDS
 
-/mob/living/simple_animal/hostile/megafauna/legion/proc/reset_charge()
+/mob/living/simple_animal/hostile/megafauna/legion/MoveToTarget()
+	if(firing_laser)
+		return
+	..()
+
+/mob/living/simple_animal/hostile/megafauna/legion/Move()
+	if(firing_laser)
+		return FALSE
+	. = ..()
+
+/mob/living/simple_animal/hostile/megafauna/legion/Goto(target, delay, minimum_distance)
+	if(firing_laser)
+		return
+	..()
+
+/mob/living/simple_animal/hostile/megafauna/legion/proc/set_ranged()
 	ranged = TRUE
 	retreat_distance = 5
 	minimum_distance = 5
+	move_to_delay = 2
 	speed = 2
 	charging = FALSE
 
-/mob/living/simple_animal/hostile/megafauna/legion/can_die()
-	return ..() && health <= 0
+/mob/living/simple_animal/hostile/megafauna/legion/proc/fire_disintegration_laser(location)
+	playsound(loc, 'sound/weapons/marauder.ogg', 200, TRUE)
+	Beam(location, icon_state = "death_laser", time = 2 SECONDS, maxdistance = INFINITY, beam_type = /obj/effect/ebeam/disintegration)
+	for(var/turf/t in getline(src, location))
+		if(ismineralturf(t))
+			var/turf/simulated/mineral/M = t
+			M.gets_drilled(src)
+		for(var/mob/living/M in t)
+			if(faction_check(M.faction, faction, FALSE))
+				continue
 
-/mob/living/simple_animal/hostile/megafauna/legion/death()
-	if(!can_die())
-		return FALSE
-	if(size > 1)
-		adjustHealth(-maxHealth) //heal ourself to full in prep for splitting
-		var/mob/living/simple_animal/hostile/megafauna/legion/L = new(loc)
-
-		L.maxHealth = maxHealth * 0.6
-		maxHealth = L.maxHealth
-
-		L.health = L.maxHealth
-		health = maxHealth
-
-		size--
-		L.size = size
-
-		L.resize = L.size * 0.2
-		transform = initial(transform)
-		resize = size * 0.2
-
-		L.update_transform()
-		update_transform()
-
-		L.faction = faction.Copy()
-
-		L.GiveTarget(target)
-
-		visible_message("<span class='boldannounce'>[src] splits in twain!</span>")
-		return FALSE // not dead
-	else
-		// this must come before the parent call due to the setting of `loot` here
-		var/last_legion = TRUE
-		for(var/mob/living/simple_animal/hostile/megafauna/legion/other in GLOB.mob_list)
-			if(other != src)
-				last_legion = FALSE
-				break
-		if(last_legion)
-			loot = list(/obj/item/staff/storm)
-			elimination = FALSE
-		else if(prob(5))
-			loot = list(/obj/structure/closet/crate/necropolis/tendril)
-			if(!true_spawn)
-				loot = null
-		return ..()
+			if(M.stat == DEAD)
+				visible_message("<span class='danger'>[M] is disintegrated by the beam!</span>")
+				M.dust()
+			else if(M != src)
+				playsound(M,'sound/weapons/sear.ogg', 50, TRUE, -4)
+				to_chat(M, "<span class='userdanger'>You're struck by a disintegration laser!</span>")
+				var/limb_to_hit = M.get_organ(pick(BODY_ZONE_HEAD, BODY_ZONE_CHEST, BODY_ZONE_R_ARM, BODY_ZONE_L_ARM, BODY_ZONE_R_LEG, BODY_ZONE_L_LEG))
+				var/armor = M.run_armor_check(limb_to_hit, LASER)
+				M.apply_damage(70 - ((health / maxHealth) * 20), BURN, limb_to_hit, armor)
 
 /mob/living/simple_animal/hostile/megafauna/legion/Process_Spacemove(movement_dir = 0)
 	return 1
 
+/mob/living/simple_animal/hostile/megafauna/legion/adjustHealth(amount, updating_health = TRUE)
+	. = ..()
+	if(QDELETED(src))
+		return
+	if(.)
+		var/matrix/M = new
+		resize = 1 + (health / maxHealth)
+		M.Scale(resize, resize)
+		transform = M
+		if(amount > 0 && prob(33))
+			var/mob/living/simple_animal/hostile/asteroid/hivelordbrood/legion/A = new(loc)
+			A.GiveTarget(target)
+			A.friends = friends
+			A.faction = faction
+
 /obj/item/gps/internal/legion
 	icon_state = null
 	gpstag = "Echoing Signal"
diff --git a/code/modules/mob/living/simple_animal/hostile/megafauna/megafauna.dm b/code/modules/mob/living/simple_animal/hostile/megafauna/megafauna.dm
index 69b8098542b..485b1ec0b3a 100644
--- a/code/modules/mob/living/simple_animal/hostile/megafauna/megafauna.dm
+++ b/code/modules/mob/living/simple_animal/hostile/megafauna/megafauna.dm
@@ -33,7 +33,6 @@
 	var/elimination = FALSE
 	var/anger_modifier = 0
 	var/obj/item/gps/internal_gps
-	var/internal_type
 	var/recovery_time = 0
 	var/true_spawn = TRUE // if this is a megafauna that should grant achievements, or have a gps signal
 	var/nest_range = 10
@@ -42,8 +41,8 @@
 
 /mob/living/simple_animal/hostile/megafauna/Initialize(mapload)
 	. = ..()
-	if(internal_type && true_spawn)
-		internal = new internal_type(src)
+	if(internal_gps && true_spawn)
+		internal = new internal_gps(src)
 	for(var/action_type in attack_action_types)
 		var/datum/action/innate/megafauna_attack/attack_action = new action_type()
 		attack_action.Grant(src)
diff --git a/code/modules/mob/living/simple_animal/hostile/mining/hivelord.dm b/code/modules/mob/living/simple_animal/hostile/mining/hivelord.dm
index a6fefabc5c5..35b76e65849 100644
--- a/code/modules/mob/living/simple_animal/hostile/mining/hivelord.dm
+++ b/code/modules/mob/living/simple_animal/hostile/mining/hivelord.dm
@@ -279,42 +279,51 @@
 	can_infest_dead = TRUE
 
 //Legion that spawns Legions
-/mob/living/simple_animal/hostile/big_legion
-	name = "legion"
-	desc = "One of many."
+/mob/living/simple_animal/hostile/asteroid/big_legion
+	name = "big legion"
+	desc = "This monstrosity has clearly been corrupting for centuries, and is looking for a fight. Rumours claim it is capable of throwing the strongest of miners and his name is Billy."
 	icon = 'icons/mob/lavaland/64x64megafauna.dmi'
 	icon_state = "legion"
 	icon_living = "legion"
-	icon_dead = "legion"
-	health = 450
-	maxHealth = 450
-	melee_damage_lower = 20
-	melee_damage_upper = 20
-	anchored = FALSE
-	AIStatus = AI_ON
-	stop_automated_movement = FALSE
+	icon_dead = "legion-dead"
+	health = 350
+	maxHealth = 350
+	melee_damage_lower = 30
+	melee_damage_upper = 30
 	wander = TRUE
-	maxbodytemp = INFINITY
 	layer = MOB_LAYER
-	del_on_death = TRUE
+	move_force = MOVE_FORCE_VERY_STRONG
+	move_resist = MOVE_FORCE_VERY_STRONG
+	pull_force = MOVE_FORCE_VERY_STRONG
 	sentience_type = SENTIENCE_BOSS
 	attack_sound = 'sound/misc/demon_attack1.ogg'
-	loot = list(/obj/item/organ/internal/regenerative_core/legion = 3, /obj/effect/mob_spawn/human/corpse/damaged/legioninfested = 5)
-	move_to_delay = 14
-	vision_range = 5
-	aggro_vision_range = 9
-	speed = 3
-	faction = list("mining")
-	weather_immunities = list("lava","ash")
-	obj_damage = 30
-	environment_smash = ENVIRONMENT_SMASH_STRUCTURES
-	see_in_dark = 8
-	lighting_alpha = LIGHTING_PLANE_ALPHA_MOSTLY_INVISIBLE
+	speed = 0
 
+/mob/living/simple_animal/hostile/asteroid/big_legion/AttackingTarget()
+	if(!isliving(target))
+		return ..()
+	var/mob/living/L = target
+	var/datum/status_effect/stacking/ground_pound/G = L.has_status_effect(STATUS_EFFECT_GROUNDPOUND)
+	if(!G)
+		L.apply_status_effect(STATUS_EFFECT_GROUNDPOUND, 1, src)
+		return ..()
+	if(G.add_stacks(stacks_added = 1, attacker = src))
+		return ..()
 
-/mob/living/simple_animal/hostile/big_legion/Initialize(mapload)
-	.=..()
-	AddComponent(/datum/component/spawner, list(/mob/living/simple_animal/hostile/asteroid/hivelord/legion), 200, faction, "peels itself off from", 3)
+/mob/living/simple_animal/hostile/asteroid/big_legion/proc/throw_mobs()
+	playsound(src, 'sound/effects/meteorimpact.ogg', 200, TRUE, 2, TRUE)
+	for(var/mob/living/L in range(3, src))
+		if(faction_check(faction, L.faction, FALSE))
+			continue
+
+		L.visible_message("<span class='danger'>[L] was thrown by [src]!</span>",
+		"<span class='userdanger'>You feel a strong force throwing you!</span>",
+		"<span class='danger'>You hear a thud.</span>")
+		var/atom/throw_target = get_edge_target_turf(L, get_dir(src, get_step_away(L, src)))
+		L.throw_at(throw_target, 4, 4)
+		var/limb_to_hit = L.get_organ(pick(BODY_ZONE_HEAD, BODY_ZONE_CHEST, BODY_ZONE_R_ARM, BODY_ZONE_L_ARM, BODY_ZONE_R_LEG, BODY_ZONE_L_LEG))
+		var/armor = L.run_armor_check(def_zone = limb_to_hit, attack_flag = MELEE, armour_penetration_percentage = 50)
+		L.apply_damage(40, BRUTE, limb_to_hit, armor)
 
 //Tendril-spawned Legion remains, the charred skeletons of those whose bodies sank into laval or fell into chasms.
 /obj/effect/mob_spawn/human/corpse/charredskeleton
diff --git a/icons/effects/beam.dmi b/icons/effects/beam.dmi
index 930781e2f36..f3195929c8c 100644
Binary files a/icons/effects/beam.dmi and b/icons/effects/beam.dmi differ
diff --git a/icons/mob/lavaland/64x64megafauna.dmi b/icons/mob/lavaland/64x64megafauna.dmi
index 428a433f1cd..2a8077f1ab5 100644
Binary files a/icons/mob/lavaland/64x64megafauna.dmi and b/icons/mob/lavaland/64x64megafauna.dmi differ
diff --git a/icons/obj/lavaland/artefacts.dmi b/icons/obj/lavaland/artefacts.dmi
index d4a75fd23c7..32eeb480a37 100644
Binary files a/icons/obj/lavaland/artefacts.dmi and b/icons/obj/lavaland/artefacts.dmi differ