MTG · Card

◇ Catalog #37

Big Mother Mouser

tmc·#37·rare·foil

Illus. Miklós Ligeti

View concept →

—

in vault

—

for trade

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wishlisted

Mar '26

5 mo ago

Value

$3.32+$0 (+4.2%)

30 days high $3.44 · low $3.13

NM$3.32

LP—

MP—

HP—

DMG—

$3.07–$3.50modeled

30 days ago
today

90-dayhigh $3.32low $2.00range 66.0%n 2

Where to buy / sell

TCGplayer eBay sold Cardmarket EU Star City

Search links · prices vary by venue

Buy this card

Played in EDH

EDHrec rank #7,211 · Niche pick

Variants

Foil$3.32

Nonfoil$1.37

Gameplay

Artifact Creature — Robot

This creature enters with two +1/+1 counters on it. Whenever this creature attacks, double the number of +1/+1 counters on it. When this creature dies, create a number of 1/1 colorless Robot artifact creature tokens equal to the number of +1/+1 counters on this creature.

0/0

Legalities

tlrnot legal

duellegal

brawlnot legal

pennynot legal

PreDHnot legal

Rulings · 2

2026-01-27wotc

To double the number of +1/+1 counters on a creature, put a number of +1/+1 counters on it equal to the number it already has. Other cards that interact with putting counters on it will interact with this effect accordingly.

2026-01-27wotc

If enough -1/-1 counters are put on Big Mother Mouser at the same time to make its toughness 0 or less (or the damage marked on it to be lethal), the number of +1/+1 counters on it before it got any -1/-1 counters will be used to determine how many Robot tokens you get. For example, if there are three +1/+1 counters on Big Mother Mouser and it gets four -1/-1 counters, you'll get three Robot tokens. That's because Big Mother Mouser's last ability checks Big Mother Mouser's existence just before it leaves the battlefield, and it still has all those counters on it at that point.

Context

Last observed on Scryfall 3 months ago at $3.32. Over the trailing 90 days the price moved between $2.00 and $3.32 across 2 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.

This printing is one of 3 catalogued treatments from TMC — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.

Card #37 of *Teenage Mutant Ninja Turtles Eternal*, the set that shipped alongside the March 2026 Teenage Mutant Ninja Turtles Eternal release.

Card type: Artifact Creature — Robot, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {4} (4 converted). Keyword abilities: Double.

Legal in Legacy, Vintage, and Commander.

EDHrec ranks this card #7,211 in Commander, putting it in the niche-pick tier of the format's playable pool.

Illustrated by Miklós Ligeti. Rarix catalogs 95 other cards credited to this artist.