The originalheld the mantle from 1973
Death (none; she is an abstract cosmic entity)
Powers. Nigh-omnipotent abstract embodiment of death/non-existence; reality manipulation, resurrection, soul/life-force manipulation, shapeshifting, cosmic awareness; one of the fundamental cosmic constants alongside Eternity, Infinity, and Oblivion.
Origin
Death is Marvel's cosmic embodiment of mortality itself — an abstract, primordial entity as old as the universe, worshipped and feared across countless civilizations. Neither created nor born in any conventional sense, Death simply exists as an fundamental force, silently presiding over the end of all living things.