Darksteel Sentinel is a uncommon Artifact Creature — Golem card from Duel Decks: Mirrodin Pure vs. New Phyrexia (TD2), collector number 16.
Flash (You may cast this spell any time you could cast an instant.) Vigilance Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)
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