Angel of Eternal Life

Gift Lichdom (You may promise an opponent a gift as you cast this spell. If you do, when it enters, that player gets an emblem with "You do not lose the game for having 0 or less life. You are a lich.")

Whenever damage is dealt to a lich, that lich exiles a
non-token permanent they control, a card from their graveyard, or a card from the top of their library. If they
do not, you win the game. Repeat this process for each damage dealt.
You may play cards in exile owned by a lich.

"Enjoy