Pantheon, Artisan of War

+2: Deal damage to target creature an opponent controls equal to the number of loyalty counters on this planeswalker.
-2: Until the start of your next turn, all damage dealt to this planeswalker is reflected back to that source's controller.
-10: You get an emblem with "Whenever a creature enters the battlefield under your control, deal its power to all creatures you don't control."