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Big Mother Mouser image 1 Big Mother Mouser image 2
Teenage Mutant Ninja Turtles Eternal (TMC | #37 | 2026-03-06)
Most recent print shown first. Tap image to zoom.

Big Mother Mouser

4
Artifact Creature — Robot
Artist: Miklós Ligeti
All artists: Miklós Ligeti , Kirokaze

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
$0.79 cheapest print

Prices

Set # Treatment Finish Price (USD)
Teenage Mutant Ninja Turtles Eternal 37 Regular Nonfoil $0.79
Teenage Mutant Ninja Turtles Eternal 97 Borderless Foil $58.51

Price History

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Printings (2)

Big Mother Mouser — Teenage Mutant Ninja Turtles Eternal
Teenage Mutant Ninja Turtles Eternal
#37 Rare $0.79
Regular Nonfoil Foil
Miklós Ligeti
Big Mother Mouser — Teenage Mutant Ninja Turtles Eternal
Teenage Mutant Ninja Turtles Eternal
#97 Rare —
Borderless Foil
Kirokaze

Rulings

2026-01-27 wotc
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.
2026-01-27 wotc
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.

Format Legality

Standard Not Legal
Future Not Legal
Historic Not Legal
Timeless Not Legal
Gladiator Not Legal
Pioneer Not Legal
Modern Not Legal
Legacy Legal
Pauper Not Legal
Vintage Legal
Penny Not Legal
Commander Legal
Oathbreaker Legal
Standardbrawl Not Legal
Brawl Not Legal
Alchemy Not Legal
Paupercommander Not Legal
Duel Legal
Oldschool Not Legal
Premodern Not Legal
Predh Not Legal