almost there folks

code/modules/mob/living/simple_animal/constructs.dm

@@ -16,6 +16,7 @@
 	attack_sound = 'sound/weapons/punch1.ogg'
 	atmos_requirements = list("min_oxy" = 0, "max_oxy" = 0, "min_tox" = 0, "max_tox" = 0, "min_co2" = 0, "max_co2" = 0, "min_n2" = 0, "max_n2" = 0)
 	minbodytemp = 0
+	maxbodytemp = INFINITY
 	healable = 0
 	faction = list("cult")
 	flying = 1

code/modules/mob/living/simple_animal/guardian/guardian.dm

@@ -16,10 +16,10 @@
 	attack_sound = 'sound/weapons/punch1.ogg'
 	atmos_requirements = list("min_oxy" = 0, "max_oxy" = 0, "min_tox" = 0, "max_tox" = 0, "min_co2" = 0, "max_co2" = 0, "min_n2" = 0, "max_n2" = 0)
 	minbodytemp = 0
-	maxbodytemp = 10000000
+	maxbodytemp = INFINITY
 	attacktext = "punches"
-	maxHealth = 100000 //The spirit itself is invincible
-	health = 100000
+	maxHealth = INFINITY //The spirit itself is invincible
+	health = INFINITY
 	environment_smash = 0
 	melee_damage_lower = 15
 	melee_damage_upper = 15

code/modules/mob/living/simple_animal/revenant/revenant.dm

@@ -10,6 +10,10 @@
 	desc = "A malevolent spirit."
 	icon = 'icons/mob/mob.dmi'
 	icon_state = "revenant_idle"
+	var/icon_idle = "revenant_idle"
+	var/icon_reveal = "revenant_revealed"
+	var/icon_stun = "revenant_stun"
+	var/icon_drain = "revenant_draining"
 	incorporeal_move = 3
 	invisibility = INVISIBILITY_REVENANT
 	health = INFINITY //Revenants don't use health, they use essence instead
@@ -102,15 +106,15 @@
 
 /mob/living/simple_animal/revenant/proc/update_spooky_icon()
 	if(revealed)
-		if(draining)
-			icon_state = "revenant_draining"
-			return
 		if(notransform)
-			icon_state = "revenant_stun"
-			return
-		icon_state = "revenant_revealed"
-		return
-	icon_state = "revenant_idle"
+			if(draining)
+				icon_state = icon_drain
+			else
+				icon_state = icon_stun
+		else
+			icon_state = icon_reveal
+	else
+		icon_state = icon_idle
 
 /mob/living/simple_animal/revenant/ex_act(severity, target)
 	return 1 //Immune to the effects of explosions.
@@ -121,6 +125,9 @@
 /mob/living/simple_animal/revenant/singularity_act()
 	return //don't walk into the singularity expecting to find corpses, okay?
 
+/mob/living/simple_animal/revenant/narsie_act()
+	return //most humans will now be either bones or harvesters, but we're still un-alive.
+
 /mob/living/simple_animal/revenant/adjustBruteLoss(amount)
 	if(!revealed)
 		return
@@ -235,11 +242,11 @@
 
 /mob/living/simple_animal/revenant/New()
 	..()
-	
+
 	ghostimage = image(src.icon,src,src.icon_state)
 	ghost_darkness_images |= ghostimage
 	updateallghostimages()
-	
+
 	spawn(5)
 		if(src.mind)
 			src.mind.remove_all_antag()
@@ -414,7 +421,7 @@
 		user << "<span class='revenwarning'>It is shifting and distorted. It would be wise to destroy this.</span>"
 
 /obj/item/weapon/ectoplasm/revenant/proc/reform()
-	if(inert || !src)
+	if(gc_destroyed || !src || inert)
 		return
 	var/key_of_revenant
 	message_admins("Revenant ectoplasm was left undestroyed for 1 minute and is reforming into a new revenant.")

code/modules/mob/living/simple_animal/shade.dm

@@ -18,7 +18,7 @@
 	melee_damage_upper = 15
 	attacktext = "metaphysically strikes"
 	minbodytemp = 0
-	maxbodytemp = 4000
+	maxbodytemp = INFINITY
 	atmos_requirements = list("min_oxy" = 0, "max_oxy" = 0, "min_tox" = 0, "max_tox" = 0, "min_co2" = 0, "max_co2" = 0, "min_n2" = 0, "max_n2" = 0)
 	speed = -1
 	stop_automated_movement = 1

code/modules/mob/living/simple_animal/slaughter/slaughter.dm

@@ -19,6 +19,7 @@
 	attack_sound = 'sound/magic/demon_attack1.ogg'
 	atmos_requirements = list("min_oxy" = 0, "max_oxy" = 0, "min_tox" = 0, "max_tox" = 0, "min_co2" = 0, "max_co2" = 0, "min_n2" = 0, "max_n2" = 0)
 	minbodytemp = 0
+	maxbodytemp = INFINITY
 	faction = list("slaughter")
 	attacktext = "wildly tears into"
 	maxHealth = 200