Skeleton Horde General

+2: Create two 1/1 Black Skeleton Token with "(B) This creature gains Invulnerability until end of turn." Skeletons gain +1/+1 until your next upkeep
X: Exile X target cards from graveyard(s), you draw X cards, and you lose X life; or Target creature gets -X-X until end of turn and gain X Life.
-9: Skeletons gain Indestructible, tap them. Destroy all creatures except one. You gain control of it and it becomes a Black Skeleton.