How much is Brain in a Jar worth?

As of August 2026, Brain in a Jar from Shadows over Innistrad Promos has a market value of €1.32. Track price trends and find local trades on Lootstack.

What set is Brain in a Jar from?

Brain in a Jar is from the Shadows over Innistrad Promos (PSOI) expansion, part of the Magic: The Gathering trading card game.

What rarity is Brain in a Jar?

Brain in a Jar is a Rare card from the Shadows over Innistrad Promos set in Magic: The Gathering.

What type of card is Brain in a Jar?

Brain in a Jar is a Artifact from the Shadows over Innistrad Promos set in Magic: The Gathering.

Is Brain in a Jar legal in Modern?

Brain in a Jar is Legal in Modern. Check all format legalities for this Magic: The Gathering card on Lootstack.

Brain in a Jar - Shadows over Innistrad Promos

Card Availability

See where Brain in a Jar is available worldwide and at your local stores

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Legalities

LEGAL

Brawl

LEGAL

Commander

LEGAL

Duel

UNKNOWN

Future

UNKNOWN

Frontier

LEGAL

Historic

LEGAL

Legacy

LEGAL

Modern

UNKNOWN

Oathbreaker

UNKNOWN

Pauper

LEGAL

Penny

LEGAL

Pioneer

UNKNOWN

Standard

LEGAL

Vintage

Rules & Rulings

4/8/2016

When resolving the first ability of Brain in a Jar, the newly-placed charge counter will be counted when determining what spells you may cast. No player may take any action between you placing the counter and choosing which spell to cast.

4/8/2016

If you cast a card “without paying its mana cost,” you can’t choose to cast it for any alternative costs, such as awaken costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, such as that of Lightning Axe, you must pay those to cast the card.

4/8/2016

If Brain in a Jar leaves the battlefield before its first ability resolves, use the number of counters on it at the moment it left to determine what spell you may cast. That number won’t change because you can’t put a new counter on Brain in a Jar.

4/8/2016

If the card has in its mana cost, you must choose 0 as the value of X.