---
name: "Sea Monster"
mana_cost: "{4}{U}{U}"
cmc: 6
type_line: "Creature — Serpent"
colors: ["U"]
color_identity: ["U"]
keywords: []
set: "6ED"
set_name: "Classic Sixth Edition"
collector_number: "96"
rarity: "common"
artist: "Daniel Gelon"
oracle_id: "21b07ce7-b4f9-438c-8c09-e624557d62d2"
canonical_url: "https://avascry.com/printing/sea-monster-6ed"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "legal"
  penny: "legal"
---

# Sea Monster
- **Mana Cost:** `{4}{U}{U}` (CMC: 6)
- **Type:** Creature — Serpent
- **Power/Toughness:** 6/6

## Oracle Text
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. [Sealock Monster](/printing/sealock-monster-plst.md) — Creature — Octopus
4. [Serpent of the Endless Sea](/printing/serpent-of-the-endless-sea-m10.md) — Creature — Serpent
5. [Harbor Serpent](/printing/harbor-serpent-m12.md) — Creature — Serpent
6. [Kukemssa Serpent](/printing/kukemssa-serpent-mir.md) — Creature — Serpent

## Printing Details
- **Set:** Classic Sixth Edition (6ED) #96
- **Rarity:** Common
- **Artist:** Daniel Gelon
- **Total Printings:** 58 across all historical editions

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