Targeting Rocket

Contraptions are artifacts. Anything that interacts with artifacts will interact with Contraptions.

Any Contraption that's on the battlefield and wasn't assembled immediately heads to the scrapyard. However, if it's a not an actual Contraption card (like Copy Artifact isn't), it goes to your graveyard as normal. Non-Contraption cards can't be in the scrapyard.

If you crank multiple Contraptions, their abilities can be put onto the stack in any order. The ability put onto the stack will resolve first.