Mirror Golem is a uncommon Artifact Creature — Golem card from Mirrodin (MRD), collector number 208. Current market price: $0.14 (foil $0.53), TCGplayer market prices via Scryfall.
Imprint — When this creature enters, you may exile target card from a graveyard. This creature has protection from each of the exiled card's card types. (Artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery are card types.)