Dungeons & Dragons: Adventures in the Forgotten Realms

Black Dragon | Creature | Dragon | Flying Acid Breath — When Black Dragon enters the battlefield, target creature an opponent controls gets -3/-3 until end of turn. | Mark Zug

Tiamat | Legendary Creature | Dragon God | Flying When Tiamat enters the battlefield, if you cast it, search your library for up to five Dragon cards not named Tiamat that each have different names, reveal them, put them into your hand, then shuffle. | Chris Rahn