Mana Vault [Unlimited Edition] Oath of the Gatewatch Prerelease Promos His Dinosaur Kingdom gives you

His Dinosaur Kingdom gives you access to a powerful Field Spell to stomp the competition into dust

Spend this mana only to cast legendary spells

Discard all Grass Energy attached to this Pokemon

Tap two untapped creatures you control: Return target permanent to its owner's hand

Mana Vault [Unlimited Edition] Oath of the Gatewatch Prerelease Promos His Dinosaur Kingdom gives youSet: Unlimited Edition Type: Artifact Rarity: Rare Cost: {1} Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.