Old Man of the Sea [Arabian Nights] Planeshift Whenever a creature with power

Whenever a creature with power 4 or greater enters the battlefield under your control

Set: Beta Edition Type: Enchantment — Aura Rarity: Common Cost: {G} Enchant land

Set: Portal Three Kingdoms Type: Sorcery Rarity: Uncommon Cost: {1}{R} Rockslide Ambush deals damage to target creature equal to the number of Mountains you control

Set: Betrayers of Kamigawa Type: Instant — Arcane Rarity: Rare Cost: {X}{U}{U} You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {4} All Swamps are 1/1 black creatures that are still lands

Old Man of the Sea [Arabian Nights] Planeshift Whenever a creature with powerSet: 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.