The Ur-Dragon [Commander 2017] Giant Set: Kaladesh Inventions Type: Artifact

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} Mana Vault doesn't untap during your untap step

Set: Time Spiral Type: Enchantment — Aura Rarity: Common Cost: {2}{U} Flash (You may cast this spell any time you could cast an instant

If that land is a Plains

Set: Legends Type: Instant Rarity: Common Cost: {B} Prevent all combat damage that would be dealt this turn

Set: From the Vault: Relics Type: Artifact Creature — Golem Rarity: Mythic Cost: {8} When Sundering Titan enters or leaves the battlefield

The Ur-Dragon [Commander 2017] Giant Set: Kaladesh Inventions Type: ArtifactSet: Commander 2017 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.