Old Man of the Sea [Arabian Nights] Plains Swamp if you have the proper

if you have the proper permit

Set: Dominaria Prerelease Promos Type: Legendary Artifact — Equipment Rarity: Rare Cost: {4} At the beginning of combat on your turn

among any number of targets

This ability still resolves if its target becomes illegal

Set: From the Vault: Realms Type: Land Rarity: Mythic {T}: Add {C}{C}

Old Man of the Sea [Arabian Nights] Plains Swamp if you have the properSet: Arabian Nights Type: Creature Djinn Rarity: Rare Cost: {1}{U}{U} You may choose not to untap Old Man of the Sea during your untap step. {T}: Gain control of target creature with power less than or equal to Old Man of the Sea's power for as long as Old Man of the Sea remains tapped and that creature's power remains less than or equal to Old Man of the Sea's power.