Ajani Goldmane

+1: Bodyguard: Every night on Theros, you may choose one player. If they were to die during that night, you would sacrifice your life for theirs.
-1: Tracker: Every night on Kaladesh, you may choose one player. At the end of the phase, you may see who they targeted, if anyone.
-6: Doctor: Every night on Alara, you may choose one player. If they were to be killed during that night, you are able to save their life.