The Mightstone and Weakstone
- The Brothers' War
- Mana Cost:
- Card Type:
- Legendary Artifact - Powerstone
- When The Mightstone and Weakstone enters the battlefield, 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.)