The Ur-Dragon [Secret Lair Drop Series] Swamp Mountain who—or what—is the signal for

who—or what—is the signal for

if that creature came under its owner's control since the beginning of their last upkeep

It gains flying and haste until end of turn

Here are just a few of the features you’ll find in the Sword Coast Adventurer’s Guide:

the ring harnesses its stellar energy for an unfathomable purpose

The Ur-Dragon [Secret Lair Drop Series] Swamp Mountain who—or what—is the signal forSet: Secret Lair Drop Series Type: Legendary Creature Dragon Avatar Rarity: Mythic Cost: {4}{W}{U}{B}{R}{G} Eminence As long as The Ur Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost {1} less to cast. Flying Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.