The Mightstone and Weakstone

The Brothers' War Promos · Rare · Foil · #238s · Current price $12.85

The card

{5} · Legendary Artifact — Powerstone

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.)

Price history

Traded between $12.85 and $14.05 over the last 90 days, peaking 17 Jun 2026. Now $12.85 — 8.5% below its 90-day high. Over the window it moved −8.5%.

AI price forecast

7-day: $12.85 (+0.0%, high confidence) — 80% range $12.36 to $13.11
14-day: $12.82 (−0.2%, high confidence) — 80% range $12.08 to $13.31
30-day: $12.76 (−0.7%, high confidence) — 80% range $11.53 to $13.63

Other printings

The Mightstone and Weakstone has 3 printings tracked here; this is the 1st most expensive.

The Brothers' War (Foil) — $5.51
The Brothers' War — $5.49

Playability & legality

EDHREC rank 3023 — a measure of how often it appears in Commander decks.

Legal in: Pioneer, Modern, Legacy, Vintage, Commander, Brawl.

About this printing

This is a reprint, not a first printing.
A promotional printing.
2015 frame.
Art by Ryan Pancoast.

Forecasts are statistical estimates with confidence intervals, not guarantees. Collectibles are speculative. This is not financial advice.