The Ender Dragon

Flying, Menace

When The Ender Dragon enters the battlefield, destroy all non-Dragon creatures. They can’t be regenerated.

Whenever a creature an opponent controls dies, create a 1/1 black Endermite creature token with "When this creature dies, each opponent loses 1 life."

{2}{b}{r}, Sacrifice three Endermites: The Ender Dragon deals 7 damage to any target and exiles the top two cards of your library. You may play them this turn.