Sans, Slacker No More

+3: Create two 4/1 Gaster Blasters with Haste, Deathtouch, and Trample. Sacrifice them at the beginning of your end step.
-3: Sacrifice any amount of creatures and deal X damage to X creatures where X is the combined amount of the sacrificed creature's mana cost.
+11: Draw X cards, deal X damage to X targets, put X cards from your graveyard onto the battlefield where X are the creatures in all graveyards.