Karumonix, the Rat King 
Legendary Creature — Phyrexian Rat3/3
Oracle text (EN)
Legendary Creature — Phyrexian Rat
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Other Rats you control have toxic 1. When Karumonix enters, look at the top five cards of your library. You may reveal any number of Rat cards from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order.
Printing details
- Set
- ONE · 282
- Rarity
- Rare
- Language
- EN
- Artist
- Jason A. Engle
- Released
- 2023-02-10
- Prices
- €0.54 · $0.72
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| October 31, 2026 | €0.55 | €0.11 |
| October 30, 2026 | €0.54 | €0.11 |
| October 28, 2026 | €0.58 | €0.11 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €0.00 30-day avg – | low – trend €0.55 30-day avg €0.50 |
| CardTrader (EN) | NM from – | NM from €0.11 with Zero from €1.10 |
| CardTrader (any language) | NM from – | NM from €0.11 |
Cardmarket updated Oct 31, 2026 · CardTrader updated Oct 31, 2026
Buy and look up
Legality
- standard Not legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Not legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Legal
- tlr Legal
Rulings
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Conversely, replacement effects that apply to the number of counters put on a player can modify the counters placed this way. For example, Vorinclex, Monstrous Raider's last two abilities can apply to counters placed this way.
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Any other effects of that damage, such as life gain from lifelink, still apply.
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Damage dealt by a creature with toxic grants the same number of counters regardless of how much damage is dealt. Notably, if a replacement effect modifies the damage in some way (such as that of Gratuitous Violence), the number of counters given remains unchanged.
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A player with ten or more poison counters loses the game. This is a state-based action and doesn't use the stack. In other words, it happens immediately and players can't respond to it, just like a player losing the game due to having 0 or less life.
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If a creature with toxic deals combat damage to a creature or planeswalker, or if it deals noncombat damage, toxic has no effect and no player gets poison counters.
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Toxic doesn't change the amount of combat damage a creature deals. For example, if a 2/2 creature with toxic 1 deals combat damage to a player, that creature will deal 2 damage. The results of that damage are the player loses 2 life and gets a poison counter.
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Multiple instances of toxic are cumulative. For example, if a creature has toxic 2 and gains toxic 1 due to another effect, combat damage that creature deals to a player will cause that player to get 3 poison counters.