Weaponized Scrap is a rare Artifact Creature — Construct card from Mystery Booster Playtest Cards 2019 (CMB1), collector number 111. Current market price: $0.25, TCGplayer market prices via Scryfall.
Upgrade (This creature enters covering another artifact you control. If it can't, exile it. Ignore the artifact it's covering. Anywhere this card goes, cards underneath it also go. It has haste.)