Dark Reaper, Monster Hero

+1: Target opponent loses 1 life, and You gain 1 life.
-1: Create a 3/1 Black Legendary Creature Token called Dark Reaper, Backup Skull with First Strike and Sacrifice this creature.
-3: Create a Black 0/2 Dust Wall with Reach and If you control a Permanent with Dark Reaper in its name, this creature has indestructible.