The Mightstone and Weakstone
The Brothers' War · Rare · Normal · #238 · Current price $5.49
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 $3.79 and $5.52 over the last 90 days, peaking 9 Sep 2026. Now $5.49 — 0.5% below its 90-day high. Over the window it moved +21.3%.
AI price forecast
- 7-day: $5.43 (+0.3%, high confidence) — 80% range $5.11 to $5.78
- 14-day: $5.46 (+0.9%, high confidence) — 80% range $4.98 to $5.98
- 30-day: $5.49 (+1.4%, high confidence) — 80% range $4.77 to $6.28
Other printings
The Mightstone and Weakstone has 3 printings tracked here; this is the 3rd most expensive.
- The Brothers' War Promos (Foil) — $12.85
- The Brothers' War (Foil) — $5.51
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
- 2015 frame.
- Art by Ryan Pancoast.
Forecasts are statistical estimates with confidence intervals, not guarantees. Collectibles are speculative. This is not financial advice.