Carrion Bloom

As an additional cost to cast this spell, you may sacrifice a creature.

Search your library for up to two basic land cards,
put one onto the battlefield tapped, and the other into your hand. Then shuffle.
If you sacrificed a creature, instead search your library for up to two land cards, put one onto the battlefield tapped, and the other into your hand.
Then shuffle. You gain life equal to the sacrificed creature’s toughness.