Cataclysmic Gearhulk is a mythic Artifact Creature — Construct card from Kaladesh (KLD), collector number 9. Current market price: $0.35 (foil $2.32), TCGplayer market prices via Scryfall.
Vigilance When this creature enters, each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the rest.