diff --git a/code/__DEFINES/traits/declarations.dm b/code/__DEFINES/traits/declarations.dm
index dd97e33fda0..f6eefaa8686 100644
--- a/code/__DEFINES/traits/declarations.dm
+++ b/code/__DEFINES/traits/declarations.dm
@@ -55,6 +55,7 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 #define TRAIT_FAKEDEATH "fakedeath"	//Makes the owner appear as dead to most forms of medical examination
 #define TRAIT_XENO_HOST "xeno_host"	//Tracks whether we're gonna be a baby alien's mummy.
 #define TRAIT_LEGION_TUMOUR "legion_tumour" //used in huds for special icon
+#define TRAIT_NO_SPELLS "no_spells"	// Used to prevent cast or use any spells
 /// Are we immune to shocks?
 #define TRAIT_SHOCKIMMUNE "shock_immunity"
 /// Are we immune to specifically tesla / SM shocks?
diff --git a/code/_globalvars/traits.dm b/code/_globalvars/traits.dm
index 722993ef185..54ad01b0fe2 100644
--- a/code/_globalvars/traits.dm
+++ b/code/_globalvars/traits.dm
@@ -109,6 +109,7 @@ GLOBAL_LIST_INIT(traits_by_type, list(
 		"TRAIT_NO_SLIP_SLIDE" = TRAIT_NO_SLIP_SLIDE,
 		"TRAIT_NO_SLIP_WATER" = TRAIT_NO_SLIP_WATER,
 		"TRAIT_NO_SPECIES_EXAMINE" = TRAIT_NO_SPECIES_EXAMINE,
+		"TRAIT_NO_SPELLS" = TRAIT_NO_SPELLS,
 		"TRAIT_NO_TRANSFORM" = TRAIT_NO_TRANSFORM,
 		"TRAIT_OBESITY" = TRAIT_OBESITY,
 		"TRAIT_OPEN_MIND" = TRAIT_OPEN_MIND,
diff --git a/code/datums/spell.dm b/code/datums/spell.dm
index 96ba79c316e..0a525769ad5 100644
--- a/code/datums/spell.dm
+++ b/code/datums/spell.dm
@@ -593,6 +593,9 @@ GLOBAL_LIST_INIT(spells, typesof(/obj/effect/proc_holder/spell))
 			to_chat(user, span_warning("You shouldn't have this spell! Something's wrong."))
 		return FALSE
 
+	if(HAS_TRAIT(user, TRAIT_NO_SPELLS))
+		return FALSE
+
 	if(!centcom_cancast) //Certain spells are not allowed on the centcom zlevel
 		var/turf/user_turf = get_turf(user)
 		if(user_turf && is_admin_level(user_turf.z))
diff --git a/code/modules/mob/living/carbon/brain/MMI.dm b/code/modules/mob/living/carbon/brain/MMI.dm
index 95668af8f1d..7bf60ec50dc 100644
--- a/code/modules/mob/living/carbon/brain/MMI.dm
+++ b/code/modules/mob/living/carbon/brain/MMI.dm
@@ -88,6 +88,7 @@
 		brainmob.set_stat(CONSCIOUS)
 		brainmob.set_invis_see(initial(brainmob.see_invisible))
 		held_brain = brain
+		ADD_TRAIT(brainmob, TRAIT_NO_SPELLS, UNIQUE_TRAIT_SOURCE(src)) // Dont use spells, little brain.
 		alien = istype(brain, /obj/item/organ/internal/brain/xeno)
 		update_appearance(UPDATE_ICON_STATE|UPDATE_NAME)
 		if(radio_action)
@@ -188,6 +189,7 @@
 	GLOB.alive_mob_list -= brainmob//Get outta here
 	held_brain.brainmob = brainmob//Set the brain to use the brainmob
 	held_brain.brainmob.cancel_camera()
+	REMOVE_TRAIT(brainmob, TRAIT_NO_SPELLS, UNIQUE_TRAIT_SOURCE(src))
 	brainmob = null//Set mmi brainmob var to null
 	held_brain.forceMove(dropspot)
 	held_brain = null