Agent of the Shadow Thieves is a uncommon Legendary Enchantment — Background card from Commander Legends: Battle for Baldur's Gate (CLB), collector number 108. Current market price: $0.27 (foil $0.37), TCGplayer market prices via Scryfall.
Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, put a +1/+1 counter on this creature. It gains deathtouch and indestructible until end of turn."
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