The Mightstone and Weakstone

Type line

Legendary Artifact — Powerstone

Oracle text

When The Mightstone and Weakstone enters, choose one — • Draw two cards. • Target creature gets -5/-5 until end of turn. : Add . This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)

Market price

$4.98