Collector Number:

238

Card Type:

Legendary Artifact — Powerstone

Mana Cost:

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.)