The Ur-Dragon [Secret Lair Drop Series] Mirrodin Besieged Activate this ability only if

Activate this ability only if you control three or more artifacts

it gains double strike until end of turn

Set: Legends Type: Creature — Elf Rarity: Rare Cost: {3}{G}{G} Elven Riders can't be blocked except by Walls and/or creatures with flying

Maralen sent Veesa

create a 4/4 red and green Beast creature token with trample

The Ur-Dragon [Secret Lair Drop Series] Mirrodin Besieged Activate this ability only ifSet: 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.