---
name: "Deep-Sea Serpent"
mana_cost: "{4}{U}{U}"
cmc: 6
type_line: "Creature — Serpent"
colors: ["U"]
color_identity: ["U"]
keywords: []
set: "POR"
set_name: "Portal"
collector_number: "51"
rarity: "uncommon"
artist: "Scott M. Fischer"
oracle_id: "7fbb98cc-585c-4184-97f5-9b3d3ebdb1e5"
canonical_url: "https://avascry.com/printing/deep-sea-serpent-por"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Deep-Sea Serpent
- **Mana Cost:** `{4}{U}{U}` (CMC: 6)
- **Type:** Creature — Serpent
- **Power/Toughness:** 5/5

## 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. [Sea Monster](/printing/sea-monster-7ed.md) — Creature — Serpent
3. [Serpent of the Endless Sea](/printing/serpent-of-the-endless-sea-m10.md) — Creature — Serpent
4. [Kukemssa Serpent](/printing/kukemssa-serpent-mir.md) — Creature — Serpent
5. [Harbor Serpent](/printing/harbor-serpent-m12.md) — Creature — Serpent
6. [Deep-Sea Terror](/printing/deep-sea-terror-ori.md) — Creature — Serpent

## Printing Details
- **Set:** Portal (POR) #51
- **Rarity:** Uncommon
- **Artist:** Scott M. Fischer
- **Total Printings:** 7 across all historical editions

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