Master Chef is a common Legendary Enchantment — Background card from Commander Legends: Battle for Baldur's Gate (CLB), collector number 241. Current market price: $0.28 (foil $0.38), TCGplayer market prices via Scryfall.
Commander creatures you own have "This creature enters with an additional +1/+1 counter on it" and "Other creatures you control enter with an additional +1/+1 counter on them."
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