Name: Sentinel Cost: 4 CMC: 4 Color: CID: Type: Artifact Creature -- Shapeshifter Pow/Tgh: 1/1 Rules Text: {0}: Change this creature's base toughness to 1 plus the power of target creature blocking or blocked by this creature. (This effect lasts indefinitely.) Set/Rarity: Legends rare, Chronicles rare, Chronicles Foreign Black Border rare Legality: Legal in premodern, Legal in predh, Legal in legacy, Legal in oldschool, Legal in commander, Legal in duel, Legal in oathbreaker, Legal in vintage Price: $0.36