diff --git a/code/__DEFINES/maths.dm b/code/__DEFINES/maths.dm
index 367e8436864..db69b263cdf 100644
--- a/code/__DEFINES/maths.dm
+++ b/code/__DEFINES/maths.dm
@@ -219,3 +219,5 @@
 /// Like DT_PROB_RATE but easier to use, simply put `if(DT_PROB(10, 5))`
 #define DT_PROB(prob_per_second_percent, delta_time) (prob(100*DT_PROB_RATE(prob_per_second_percent/100, delta_time)))
 // )
+
+#define GET_TRUE_DIST(a, b) (a == null || b == null) ? -1 : max(abs(a.x -b.x), abs(a.y-b.y), abs(a.z-b.z))
diff --git a/code/modules/events/crystal_event.dm b/code/modules/events/crystal_event.dm
index 6cbd4262304..5965893fe15 100644
--- a/code/modules/events/crystal_event.dm
+++ b/code/modules/events/crystal_event.dm
@@ -78,7 +78,7 @@ This section is for the event controller
 
 	for(var/t in RANGE_TURFS(8, dest_crystal.loc))
 		var/turf/turf_loc = t
-		var/distance_from_center = get_dist(turf_loc, dest_crystal.loc)
+		var/distance_from_center = get_dist(turf_loc, dest_crystal)
 		switch(distance_from_center)
 			if(0)
 				distance_from_center = 1 //Same tile, let's avoid a division by zero.
@@ -127,13 +127,13 @@ This section is for the event controller
 
 		for(var/t in RANGE_TURFS(5, center_turf))
 			var/turf/turf_loc = t
-			var/distance_from_center = get_dist(turf_loc, center_turf)
+			var/distance_from_center = GET_TRUE_DIST(turf_loc, center_turf)
 			switch(distance_from_center)
 				if(0)
 					distance_from_center = 1 //Same tile, let's avoid a division by zero.
 				if(-1)
 					kill()
-					CRASH("Negative distance error here")
+					CRASH("Negative distance measurement from the center turf detected, this should never happen")
 			if(prob(250 / distance_from_center))
 				if(isopenturf(turf_loc) || isspaceturf(turf_loc))
 					turf_loc.ChangeTurf(/turf/open/indestructible/crystal_floor, flags = CHANGETURF_INHERIT_AIR)
@@ -619,12 +619,10 @@ This section is for the crystal portals variations
 	name = "Huge Portal"
 	desc = "A huge portal to an unkown dimension!"
 	color = COLOR_BLACK
-	max_mobs = 5
-	spawn_time = 20 SECONDS
+	max_mobs = 2
+	spawn_time = 40 SECONDS
 	mob_types = list(
-		/mob/living/simple_animal/hostile/crystal_monster/recruit,
-		/mob/living/simple_animal/hostile/crystal_monster/killer,
-		/mob/living/simple_animal/hostile/crystal_monster/boss,
+		/mob/living/simple_animal/hostile/crystal_monster/boss
 		)
 
 /obj/structure/crystal_portal/huge/Initialize()
@@ -686,8 +684,8 @@ This section is for the crystal monsters variations
 	health = 20
 	speed = 0.8
 	harm_intent_damage = 7
-	melee_damage_lower = 10
-	melee_damage_upper = 15
+	melee_damage_lower = 7
+	melee_damage_upper = 10
 	move_force = MOVE_FORCE_WEAK
 	move_resist = MOVE_FORCE_WEAK
 	pull_force = MOVE_FORCE_WEAK
@@ -713,9 +711,9 @@ This section is for the crystal monsters variations
 	maxHealth = 20
 	health = 20
 	speed = 0.9
-	harm_intent_damage = 11
-	melee_damage_lower = 10
-	melee_damage_upper = 15
+	harm_intent_damage = 8
+	melee_damage_lower = 8
+	melee_damage_upper = 11
 	move_force = MOVE_FORCE_NORMAL
 	move_resist = MOVE_FORCE_NORMAL
 	pull_force = MOVE_FORCE_NORMAL
@@ -745,9 +743,9 @@ This section is for the crystal monsters variations
 	maxHealth = 20
 	health = 20
 	speed = 1.2
-	harm_intent_damage = 11
-	melee_damage_lower = 15
-	melee_damage_upper = 20
+	harm_intent_damage = 9
+	melee_damage_lower = 10
+	melee_damage_upper = 15
 	move_force = MOVE_FORCE_STRONG
 	move_resist = MOVE_FORCE_STRONG
 	pull_force = MOVE_FORCE_STRONG
@@ -771,9 +769,9 @@ This section is for the crystal monsters variations
 	maxHealth = 35
 	health = 35
 	speed = 0.75
-	harm_intent_damage = 15
-	melee_damage_lower = 30
-	melee_damage_upper = 35
+	harm_intent_damage = 10
+	melee_damage_lower = 15
+	melee_damage_upper = 20
 	move_force = MOVE_FORCE_VERY_STRONG
 	move_resist = MOVE_FORCE_VERY_STRONG
 	pull_force = MOVE_FORCE_VERY_STRONG
@@ -810,12 +808,12 @@ This section is for the crystal monsters variations
 	icon_state = "crystal_boss"
 	icon_living = "crystal_boss"
 	icon_dead = "crystal_boss"
-	maxHealth = 300
-	health = 30
+	maxHealth = 150
+	health = 100
 	speed = 1.3
-	harm_intent_damage = 11
-	melee_damage_lower = 20
-	melee_damage_upper = 35
+	harm_intent_damage = 15
+	melee_damage_lower = 25
+	melee_damage_upper = 40
 	move_force = MOVE_FORCE_EXTREMELY_STRONG
 	move_resist = MOVE_FORCE_EXTREMELY_STRONG
 	pull_force = MOVE_FORCE_EXTREMELY_STRONG
@@ -832,7 +830,8 @@ This section is for the crystal monsters variations
 		var/mob/living/mob = clong
 		if(mob.stat >= HARD_CRIT)
 			mob.dust()
-			health += 35
+			if(health < maxHealth)
+				health = min(health+30,maxHealth)
 	else if(isturf(clong))
 		var/turf/turf_bump = clong
 		turf_bump.Melt()
@@ -844,7 +843,8 @@ This section is for the crystal monsters variations
 		var/mob/living/mob = target
 		if(mob.stat >= HARD_CRIT)
 			mob.dust()
-			health += 35
+			if(health < maxHealth)
+				health = min(health+30,maxHealth)
 		else
 			var/obj/item/bodypart/body_part = mob.get_bodypart(pick(BODY_ZONE_R_ARM, BODY_ZONE_L_ARM, BODY_ZONE_R_LEG, BODY_ZONE_L_LEG))
 			if(body_part)