Michael Morbius

Flying

As long as Michael Morbius was cast, he is a Human in addition to his other types.

{b/r}, Sacrifice six Blood tokens: You may search your library, hand, graveyard, and command zone, for Michael Morbius and put him onto the battlefield. Activate only as a sorcery.

Whenever you sacrifice a Blood token, you gain 2 life.
Born of science, sustained by blood.