Name: Shield Sphere Cost: 0 CMC: 0 Color: CID: Type: Artifact Creature -- Wall Pow/Tgh: 0/6 Rules Text: Defender Whenever this creature blocks, put a -0/-1 counter on it. Set/Rarity: Alliances uncommon, Masters Edition common Legality: Legal in commander, Legal in paupercommander, Legal in duel, Legal in legacy, Legal in vintage, Legal in premodern, Legal in predh, Legal in pauper, Legal in oathbreaker Price: $7.21