Your search for "Conquering Manticore 55" revealed the following:
Conquering Manticore (Foil) (ROE) from Rise of the Eldrazi, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Chris Rahn Card Text:FlyingWhen Conquering Manticore enters the battlefield, gain control of target creature an opponent controls until end of turn....
Conquering Manticore (DDL) from Duel Decks: Heroes vs. Monsters, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Chris Rahn Card Text:FlyingWhen Conquering Manticore enters the battlefield, gain control of target creature an opponent controls until end of turn....
Conquering Manticore (ROE) from Rise of the Eldrazi, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Chris Rahn Card Text:FlyingWhen Conquering Manticore enters the battlefield, gain control of target creature an opponent controls until end of turn. Untap...