The Mightstone and Weakstone (Foil) 5
Legendary Artifact — Powerstone
When The Mightstone and Weakstone enters, choose one —

• Draw two cards.

• Target creature gets -5/-5 until end of turn.

T: Add CC. This mana can t be spent to cast nonartifact spells.

(Melds with Urza, Lord Protector.)