The Mightstone and Weakstone

The Brothers' War (BRO #238)

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The Brothers' War #238

Reference Price (USD)

Nonfoil: $4.19· SP $3.56 · MP $2.93

Foil: $5.88· SP $5.00 · MP $4.12

*TCG market price, last changed Nov 13, 2026

Card Details

Rarity: Rare

Mana Cost: {5}

Type: 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. {T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)