Made threat a subsystem instead of dynamic-attached.

code/modules/mob/living/death.dm

@@ -87,7 +87,7 @@
 		addtimer(CALLBACK(src, .proc/med_hud_set_status), (DEFIB_TIME_LIMIT * 10) + 1)
 	stop_pulling()
 
-	var/signal = SEND_SIGNAL(src, COMSIG_MOB_DEATH, gibbed)
+	var/signal = SEND_SIGNAL(src, COMSIG_MOB_DEATH, gibbed) | SEND_GLOBAL_SIGNAL(COMSIG_GLOB_MOB_DEATH, src, gibbed)
 
 	var/turf/T = get_turf(src)
 	if(mind && mind.name && mind.active && !istype(T.loc, /area/ctf) && !(signal & COMPONENT_BLOCK_DEATH_BROADCAST))

code/modules/spells/spell_types/lichdom.dm

@@ -93,12 +93,14 @@
 	active_phylacteries++
 	GLOB.poi_list |= src
 	START_PROCESSING(SSobj, src)
+	RegisterSignal(SSactivity, COMSIG_THREAT_CALC, .proc/get_threat)
 	set_light(lon_range)
 	if(initial(SSticker.mode.round_ends_with_antag_death))
 		SSticker.mode.round_ends_with_antag_death = FALSE
 
 /obj/item/phylactery/Destroy(force=FALSE)
 	STOP_PROCESSING(SSobj, src)
+	UnregisterSignal(SSactivity, COMSIG_THREAT_CALC)
 	active_phylacteries--
 	GLOB.poi_list -= src
 	if(!active_phylacteries)
@@ -113,6 +115,12 @@
 	if(!mind.current || (mind.current && mind.current.stat == DEAD))
 		addtimer(CALLBACK(src, .proc/rise), respawn_time, TIMER_UNIQUE)
 
+/obj/item/phylactery/proc/get_threat(list/threat_list)
+	if(mind?.current?.stat == DEAD)
+		if(!("phylactery" in threat_list))
+			threat_list["phylactery"] = 0
+		threat_list["phylactery"] += 25
+
 /obj/item/phylactery/proc/rise()
 	if(mind.current && mind.current.stat != DEAD)
 		return "[mind] already has a living body: [mind.current]"