Template:CharacterInfoBox Lazarus is an unlockable character in The Binding of Isaac: Rebirth.

If Lazarus dies, he respawns covered in blood where he died with a single heart container and the Anemia item (leave a toxic trail when damaged).

Lazarus is obtained by picking up four Soul Hearts or Black Hearts in a run.

(Unconfirmed) There is a possibility that taking multiple deal with the devil items while the first one is still above your head does not cost more hearts while playing as Lazarus.