Name: Mysterious Egg Cost: 1 CMC: 1 Color: CID: Type: Creature -- Egg Pow/Tgh: 0/2 Rules Text: Whenever this creature mutates, put a +1/+1 counter on it. Set/Rarity: Magic Online Promos common, Ikoria: Lair of Behemoths common Set Code: PRM-C, IKO-C Legality: Legal in oathbreaker, Legal in paupercommander, Legal in timeless, Legal in commander, Legal in pioneer, Legal in penny, Legal in duel, Legal in legacy, Legal in gladiator, Legal in vintage, Legal in historic, Legal in brawl, Legal in modern, Legal in pauper Price: $0.26 Foil price: $0.42