Shartok, The Inevitable

: This card is an 8/8 legendary creature with hexproof, flying, and deathtouch that is still a planeswalker. this planeswalker cannot lose loyalty.
+2: Sacrafice a creature. gain life and deal damage to target creature equal to the sacraficed creature's converted mana cost.
-12: Destroy all creatures. Shartok, The Inevitable gets +1+1 for each creature destroyed this way. if that is ten or more, you win the game.