As an additional cost to cast this spell, you may reveal a Dragon card from your hand. Counter target spell unless its controller pays {1}. If you revealed a Dragon card or controlled a Dragon as you cast this spell, counter that spell instead.
"It slips through the smallest cracks in the mountain, emerging whole and unfettered. There is nowhere it cannot go, for what can hold back the air itself?" —Chanyi, Ojutai monk
{1}{B}, Exile one or more creature cards from your graveyard: Create a tapped X/X black Zombie Horror creature token, where X is twice the number of cards exiled this way.
Flying When Deathbringer Regent enters, if you cast it from your hand and there are five or more other creatures on the battlefield, destroy all other creatures.