Profile Kitbull-111: OogieBoogs👻

for the death aspect:
necrotic damage & endings
yes you could totally kill on touch, though the effectiveness would vary based on WHAT you're trying to kill. could also inflict decay/wounds/sickness/and so on!
death laser
necromancy is also possible! though normally this just creates normal zombies or animated skeletons. you might be able to raise small animals and have them keep a soul. if you were trying to make something as powerful as a revenant that's an aspect mastery thing.
you could resurrect someone back to normal if they died within a few minutes
you could painlessly lay someone to rest
a very convincing feign death, like. temporary.
you could use it to communicate with and even summon ghosts/spirits of both the recently dead or long-term haunting. think of the ghost hunting potential!
death aspect also encompasses decay. so rotting, poisons, sickness, corrosion, rust, life drain etc could fall here
trapping/binding souls the recently dead. and also freeing them.
sensing death, foreseeing death, etc could also be possible or you could synergize perception+death for things like that. death+dreams letting you speak to the dead who've passed on, death/crystal would be great for attaching/trapping souls to items, death+time letting you find ways to prevent a death you foresaw, etc.