---
name: "Karumonix, the Rat King"
mana_cost: "{1}{B}{B}"
cmc: 3
type_line: "Legendary Creature — Phyrexian Rat"
colors: ["B"]
color_identity: ["B"]
keywords: ["Toxic"]
set: "ONE"
set_name: "Phyrexia: All Will Be One"
collector_number: "439"
rarity: "rare"
artist: "Flavio Girón"
oracle_id: "c017f54c-e4c0-411e-b8c1-eb20b1b86c56"
canonical_url: "https://avascry.com/printing/karumonix-the-rat-king-one"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Karumonix, the Rat King
- **Mana Cost:** `{1}{B}{B}` (CMC: 3)
- **Type:** Legendary Creature — Phyrexian Rat
- **Power/Toughness:** 3/3
- **Keywords:** Toxic

## Oracle Text
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.

## Top 4096-Dim Neural Synergies
1. [Blightbelly Rat](/printing/blightbelly-rat-one.md) — Creature — Phyrexian Rat
2. [Lord Skitter, Sewer King](/printing/lord-skitter-sewer-king-pwoe.md) — Legendary Creature — Rat Noble
3. [Ichor Rats](/printing/ichor-rats-som.md) — Creature — Phyrexian Rat
4. [Rat King, Pale Piper](/printing/rat-king-pale-piper-tmc.md) — Legendary Creature — Rat Avatar
5. [Nimraiser Paladin](/printing/nimraiser-paladin-one.md) — Creature — Phyrexian Knight
6. [Septic Rats](/printing/septic-rats-mbs.md) — Creature — Phyrexian Rat

## Printing Details
- **Set:** Phyrexia: All Will Be One (ONE) #439
- **Rarity:** Rare
- **Artist:** Flavio Girón
- **Total Printings:** 20 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `legal`