The Mightstone and Weakstone
~$4.30 low · ~$12.30 high
Colorless. Legendary Artifact — Powerstone

The Brothers' War #238 · Illustrated by Ryan Pancoast
What is The Mightstone and Weakstone worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
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.)
Format legality
All 2 printings of The Mightstone and Weakstone
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
The Brothers' War bro #238· 2022rare· Cardmarket €3.15 · €4.96 foil | rare | $4.30 | $5.55 | €3.15€4.96 foil | |
The Brothers' War Promos pbro #238s· 2022Promorare· Cardmarket €4.95 foil | rare | No non-foil printing | $12.30 | €4.95 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy The Mightstone and Weakstone
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Card details
- First printed
- 2022
- Printings
- 2
- Mana value
- 5
- EDHREC rank
- #3,051 on EDHREC (Commander popularity)
- Artist
- Ryan Pancoast
What the codes mean
The small print at the bottom of the The Brothers' War card (#238).
238 · BRO · R · EN
- 238Collector number: this card's place in the set list. Main-set cards print it over the set's card count.
- BROSet code for The Brothers' War
- RRare
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (11)
2022-10-14
A player prompted to name a card may name the combined back face, and each player has the right to know that combined back face's characteristics at all times.
2022-10-14
While a meld card is in any zone other than the battlefield, it has only the characteristics of its front face. The same is true while it's on the battlefield with its front face up.
2022-10-14
In the Commander variant, a meld card's color identity is determined only by the mana costs and mana symbols in the rules text of its front face. No symbols or rules text of the permanent it melds into are considered.
2022-10-14
When a pair of cards are melded, the result is a single creature that's represented by two cards. If the melded creature dies, both cards are put into your graveyard. As it leaves the battlefield, both of those cards are turned face up again. If the cards are put on the top or bottom of your library, you choose their relative order.
2022-10-14
Note that the permanent represented by the combined back faces has a color indicator.
2022-10-14
One card in each pair of meld cards has an ability that instructs you to exile the two cards and meld them. If you control more than one object with one of those names, you select one object with that name to exile.
2022-10-14
While a melded permanent is on the battlefield, it has only the characteristics of its combined back face. Any effects that modify how the new object enters the battlefield will consider only the combined back face.
2022-10-14
Only two cards belonging to the same meld pair can be melded. Tokens, cards that aren't meld cards, or meld cards that don't form a meld pair can't be melded. If an effect instructs a player to meld cards that can't be melded, those cards remain in exile.
2022-10-14
The mana value of a melded permanent is the sum of the mana values of its front faces. A creature that becomes a copy of a melded permanent has only the characteristics of that combined back face, and its mana value is 0.
2022-10-14
If an effect moves a melded permanent to a new zone and then affects "that card," it affects both cards.
2022-10-14
When two cards are exiled and melded, they each leave the battlefield, then return together as one new object with no relation to either of the objects that left the battlefield. Counters, Auras, Equipment, and other effects that affected those two cards don't affect the melded permanent.
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