---
name: "Swarm of Rats"
mana_cost: "{1}{B}"
cmc: 2
type_line: "Creature — Rat"
colors: ["B"]
color_identity: ["B"]
keywords: []
set: "9ED"
set_name: "Ninth Edition"
collector_number: "166"
rarity: "uncommon"
artist: "Kev Walker"
oracle_id: "7fe21ade-01f1-45ff-9b70-bc6302c3d284"
canonical_url: "https://avascry.com/printing/swarm-of-rats-9ed"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "legal"
  penny: "not_legal"
---

# Swarm of Rats
- **Mana Cost:** `{1}{B}` (CMC: 2)
- **Type:** Creature — Rat
- **Power/Toughness:** */1

## Oracle Text
Swarm of Rats's power is equal to the number of Rats you control.

> *「老鼠，老鼠，老鼠！ 上百，上千，上万的老鼠，个个都是一条生命。」 ～伯兰‧史杜克，《吸血鬼》*

## Top 4096-Dim Neural Synergies
1. [Pestilence Rats](/printing/pestilence-rats-ice.md) — Creature — Rat
2. [Rat Colony](/printing/rat-colony-dom.md) — Creature — Rat
3. [Pack Rat](/printing/pack-rat-sld.md) — Creature — Rat
4. [Relentless Rats](/printing/relentless-rats-5dn.md) — Creature — Rat
5. [Plague Rats](/printing/plague-rats-ced.md) — Creature — Rat
6. [Piper of the Swarm](/printing/piper-of-the-swarm-eld.md) — Creature — Human Warlock

## Printing Details
- **Set:** Ninth Edition (9ED) #166
- **Rarity:** Uncommon
- **Artist:** Kev Walker
- **Total Printings:** 40 across all historical editions

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