Life's Legacy

As an additional cost to cast this spell, sacrifice a creature.
Draw cards equal to the sacrificed creature's power.

Collective Unconscious

Draw a card for each creature you control.

Draw cards equal to the power of target creature you control.

Choose target creature you control. Whenever that creature deals combat damage to a player or planeswalker this turn, draw that many cards.

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.