---
name: "Serpent of the Endless Sea"
mana_cost: "{4}{U}"
cmc: 5
type_line: "Creature — Serpent"
colors: ["U"]
color_identity: ["U"]
keywords: []
set: "M10"
set_name: "Magic 2010"
collector_number: "70"
rarity: "common"
artist: "Kieran Yanner"
oracle_id: "3b954d5f-3a93-4dd9-9d60-6097594d449c"
canonical_url: "https://avascry.com/printing/serpent-of-the-endless-sea-m10"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "legal"
  penny: "legal"
---

# Serpent of the Endless Sea
- **Mana Cost:** `{4}{U}` (CMC: 5)
- **Type:** Creature — Serpent
- **Power/Toughness:** */*

## Oracle Text
Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control.
This creature can't attack unless defending player controls an Island.

## Top 4096-Dim Neural Synergies
1. [Sea Serpent](/printing/sea-serpent-leb.md) — Creature — Serpent
2. [Deep-Sea Serpent](/printing/deep-sea-serpent-por.md) — Creature — Serpent
3. [Kukemssa Serpent](/printing/kukemssa-serpent-mir.md) — Creature — Serpent
4. [Harbor Serpent](/printing/harbor-serpent-m12.md) — Creature — Serpent
5. [Sea Monster](/printing/sea-monster-7ed.md) — Creature — Serpent
6. [Water Wurm](/printing/water-wurm-drk.md) — Creature — Wurm

## Printing Details
- **Set:** Magic 2010 (M10) #70
- **Rarity:** Common
- **Artist:** Kieran Yanner
- **Total Printings:** 9 across all historical editions

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