Deathdragon, deathwalker

+2: create an emblem that has when a plainswalker effects Deathdragon, deathwalker in any way, destroy that plainswalker.
-3: destroy all your opponent(s) non land permanents
-10: destroy all cards on the battlefeild, all players discard there hand, all exile goes to the the graveyard, Deathdragon destroys all opponents.