USD
$1.86
EUR
€0.77
MTGO
5.00 tix
Big Mother Mouser
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
Double
Commander bracket
1
+
Fits any bracket
No Game Changer, land denial, extra turns or two-card combos.
Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules
EDHREC
Salt Score
0.00
How much players resent seeing this card. The scale tops out around 3.1.
Combos 22
Chrome Dome+Krark-Clan Ironworks+Big Mother Mouser
Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite colorless manaInfinite copies of artifacts you control with hasteInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokens with hasteInfinite death triggers
754 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Ashnod's Altar+Big Mother Mouser
Infinite colorless manaInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
34 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Bartolomé del Presidio+Big Mother Mouser
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
32 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Viscera Seer+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggersInfinite scry 1
30 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Carrion Feeder+Big Mother Mouser
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
29 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Phyrexian Altar+Big Mother Mouser
Infinite colored manaInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
28 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Umbral Collar Zealot+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggersInfinite surveil
23 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Woe Strider+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggersInfinite scry 1
17 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Yahenni, Undying Partisan+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
16 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Altar of Dementia+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggersInfinite millInfinite self-mill
13 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Blasting Station+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite damageInfinite death triggers
12 decks
Commander Spellbook ↗
Sage of Hours+Big Mother Mouser+Resourceful Defense
Infinite turnsLock
11 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Spawning Pit+Big Mother Mouser
Infinite charge counters on a permanentInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
6 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Bloodflow Connoisseur+Big Mother Mouser
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
5 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Big Mother Mouser+Hammerhead, Maggia Boss
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
4 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Bloodthrone Vampire+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggersInfinitely large creature until end of turn
3 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Grimgrin, Corpse-Born+Big Mother Mouser
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
1 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Phantom Train+Big Mother Mouser
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
1 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Shilgengar, Sire of Famine+Big Mother Mouser
Infinite artifact tokensInfinite Blood tokensInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggers
1 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Thermopod+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite death triggersInfinite red mana
0 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Goblin Bombardment+Big Mother Mouser
Infinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite damageInfinite death triggers
0 decks
Commander Spellbook ↗
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight+Evereth, Viceroy of Plunder+Big Mother Mouser
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite creature tokensInfinite damageInfinite death triggers
0 decks
Commander Spellbook ↗
All 22 combos.
Format legality
Standard
Not legal
Pioneer
Not legal
Modern
Not legal
Legacy
Legal
Vintage
Legal
Pauper
Not legal
Commander
Legal
Oathbreaker
Legal
Duel Commander
Legal
Brawl
Not legal
Standard Brawl
Not legal
Historic
Not legal
Timeless
Not legal
Alchemy
Not legal
Penny
Not legal
Premodern
Not legal
PreDH
Not legal
Pauper EDH
Not legal
Old School
Not legal
Future
Not legal
Gladiator
Legal
Rulings
- 2026-01-27
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.
- 2026-01-27
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.