Paola, Mother of Many

Deathtouch, Ward: sacrifice a creature
Whenever Paola, Mother of Many enters the
battlefield or attacks, you may exile cards from
the top of your library until you exile a nonland
permanent. You may put the exiled cards in
your graveyard. You gain 1 life and your
opponents lose 1 life for each card you exiled
in this turn with Paola, Mother of Many.
Permanent cards in your hand have Delve.