Riveting Rigger [Unstable] Amonkhet Prerelease Promos (Look at the top three

(Look at the top three cards of your library

and first strike

The chosen player gains control of that permanent at the beginning of the next end step

Its controller may search their library for a basic land card

Riveting Rigger [Unstable] Amonkhet Prerelease Promos (Look at the top threeSet: Unstable Type: Artifact Creature Cyborg Rigger Rarity: Common Cost: {2}{W} When Riveting Rigger enters the battlefield, you may sacrifice another artifact. If you do, put two +1 +1 counters on Riveting Rigger and it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.) "Turn a blender into an arc welder with a portable fusion reactor and a frozen yogurt dispenser? We can do it!"