Universes Beyond: Transformers Foil: Slicer, Hired Muscle

Condition: Mint

Front

Double strike, haste
At the beginning of each opponent's upkeep, you may have that player gain control of Slicer until end of turn. If you do, untap Slicer, goad it, and it can't be sacrificed this turn. If you don't, convert it.
 
Back
Slicer, High-Speed Antagonist
Legendary Artifact - Vehicle
Living metal (As long as it's your turn, this Vehicle is also a creature.)
First strike, haste
Whenever Slicer deals combat damage to a player, convert it at end of combat.