Kemna, Of Broken Bonds

+1: Put a 0/1 black human cleric creature token with "Sacrifice this creature, you gain 1 life" on the battlefield.
-3: You may sacrifice any number of creatures you control, Target opponent loses that much life and you draw that many cards.
-6: You get an emblem with "Whenever you sacrifice a creature, you gain 2 life and create a 3/3 colorless Horror creature token."