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 pioneer, Legal in vintage, Legal in brawl, Legal in legacy, Legal in paupercommander, Legal in modern, Legal in duel, Legal in timeless, Legal in historic, Legal in gladiator, Legal in pauper, Legal in commander Price: $0.18 Foil price: $0.34