Mana Vault [Fourth Edition] Incarnation you'd need the energy of

you'd need the energy of the giant's tonic

If you control an Urza's Mine and an Urza's Power-Plant

Set: Eldritch Moon Prerelease Promos Type: Creature — Eldrazi Horror Rarity: Rare Cost: {3} You may cast Eternal Scourge from exile

Urborg became the final resting place of many swordsmen of renown

Mana Vault [Fourth Edition] Incarnation you'd need the energy ofSet: Fourth 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}.