Smelting Vat (Extended Art) Printing:NM Non-Foil target opponent reveals their hand

target opponent reveals their hand and you choose a nonland card from it

How much longer can we keep this machinery balanced

and freak occurrences of sentience

Creature — Worm

Whenever you cast a spell that targets Gnarlback Rhino

Smelting Vat (Extended Art) Printing:NM Non-Foil target opponent reveals their handArtifact {1}, {T}, Sacrifice another artifact: Reveal the top eight cards of your library. Put up to two noncreature artifact cards with total mana value less than or equal to the sacrificed artifacts mana value from among them onto the battlefield and the rest on the bottom of your library in a random order.