The Ur-Dragon [Secret Lair Drop Series] Swamp Mountain if that creature came under

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

As a mobile artillery weapons platform

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It gains flying and haste until end of turn

The Ur-Dragon [Secret Lair Drop Series] Swamp Mountain if that creature came underSet: 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.