The Mightstone and Weakstone is a rare Legendary Artifact — Powerstone card from Magic: The Gathering (The Brothers' War Promos, PBRO).
Rare
The Brothers' War Promos (PBRO)
{5}
Mana Value
5
Card Text
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.)
