Big Mother Mouser
Artifact Creature — Robot
$1.16
Market price
4
Public decks
Rules Text
Card Facts
Legality
Commander
LegalDuel Commander
LegalGladiator
LegalLegacy
LegalOathbreaker
LegalVintage
LegalAlchemy
Not legalBrawl
Not legalCompetitive Brawl
Not legalFuture
Not legalHistoric
Not legalModern
Not legalOld School
Not legalPauper
Not legalPauper Commander
Not legalPenny Dreadful
Not legalPioneer
Not legalPreDH
Not legalPremodern
Not legalStandard
Not legalStandard Brawl
Not legalTimeless
Not legalTLR
Not legalRulings
- Jan 27, 2026 · Wizards of the Coast
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.
- Jan 27, 2026 · Wizards of the Coast
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.
Every version
Each printing we have of this card; pick one to see its price and set.
Decks using this card
4 public decks run Big Mother Mouser.
