Brightglass Gearhulk is a mythic Artifact Creature — Construct card from Aetherdrift Promos (PDFT), collector number 191p. Current market price: $5.83 (foil $5.63), TCGplayer market prices via Scryfall.
First strike, trample When this creature enters, you may search your library for up to two artifact, creature, and/or enchantment cards with mana value 1 or less, reveal them, put them into your hand, then shuffle.