Mutavault (Grand Prix) [Grand Prix Promos] Spider Set: Pro Tour Promos Type:

Set: Pro Tour Promos Type: Creature — Avatar Rarity: Rare Cost: {6}{B}{B} If there are ten or more creature cards total in all graveyards

"The Rime of the Ancient Mariner"

it's treated as though it doesn't exist

the royal assassins choose their victims carefully

or Forest card and put that card onto the battlefield

Mutavault (Grand Prix) [Grand Prix Promos] Spider Set: Pro Tour Promos Type:Set: Grand Prix Promos Type: Land Rarity: Rare {T}: Add {C}. {1}: Mutavault becomes a 2 2 creature with all creature types until end of turn. It's still a land. Some worlds possess a hidden core where life's essence constantly surges.