Ansa, Deity of Embers

Whenever you or a permanent you control
becomes the target of a spell or ability an
opponent controls, Ansa, Deity of Embers deals
damage to that player equal to that spell's mana
value and you gain that much life.
Whenever a spell or ability an opponent controls causes you to sacrifice permanents or discard
cards, you may return those cards to your hand
at the beginning of the next end step.