Balerion, The Black Dread

Dragonrider—Aegon, The Conqueror, King Viserys I
Flying, Annihilator 3
Aegon's Conquest—Whenever Balerion, The Black
Dread deals combat damage to a player destroy each artifact and enchantment that player controls with
cmc 4 or less.
"The last living creature in all the world who saw
Valyria in its glory."
—Writings of Barth