ty for the reply This would be a script exclusive for an npc , not a spell. The player will cast a spell, summoning the npc and simultaneously causing a 5 second countdown to start. (so the script will start once the player summons the npc) After 5 seconds are up, the script will make the npc cast an explosion spell, the script will then kill the npc, and remove the corpse. hopefully that resolves some confusion. ----------------------------------- Heres how the 'heat seeking part works' I have a scripted summon spell which conjures 5 bats these bats have 100 aggression, 0 responsibility, 100 speed (so that they can locate other npc's from far away) and are evil. These bats will be added to a custom faction so that they do not attack one another. When summoned into the game, the bats attack anything living except for the player, and cause npc's to attack them without warning. If there is nothing around to fight, the bats will hover around the player (so one must be careful with this spell or the bats will explode on their master)