The Book of Exalted Deeds

At the beginning of your end step, if you gained 3 or more life this turn, create a 3/3 white Angel creature token with
flying.
{w}{w}{w}, {t}, Exile The Book of Exalted Deeds: Put an enlightened counter on target Angel.
It gains "You can't lose the game and your opponents can't win the game." Activate only
as a sorcery.