The Mightstone and Weakstone 238 (The Brothers' War)

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

NM - $8.50
LP - $6.80
MP - $5.10
HP - $3.40
DMG - $1.80