Igen, Usurper of Usarlig

: When Igen, Usurper of Usarlig enters the battlefield and at the beginning of your upkeep, you may create two 1/1 black Skeleton creature tokens.
+1: Sacrifice a creature. When you do, add a green mana to your mana pool. If that creature was a Skeleton, draw a card.
-2: Put "If damage and effects that say 'destroy' would destroy this creature, Regenerate it. Then it gets a +1/+1 counter." on a target creature.