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: Add 
to your mana pool. Gavony Vault doesn’t untap during your next untap step.
| Oracle text |
| Gavony Vault {} |Land| Tap: Add U to your mana pool. Gavony Vault doesn’t untap during your next untap step. / 1UU, Untap a tapped blue creature you control: Unless an opponent controls an Island, return target Elemental to its owners hand. Any player may activate this ability. |