---
name: "Serum Sovereign"
mana_cost: "{4}{U}"
cmc: 5
type_line: "Creature — Phyrexian Sphinx"
colors: ["U"]
color_identity: ["U"]
keywords: ["Scry", "Flying"]
set: "ONE"
set_name: "Phyrexia: All Will Be One"
collector_number: "405"
rarity: "rare"
artist: "Chris Rallis"
oracle_id: "d52ecb32-26ed-484b-b1a7-ee47b66f0f94"
canonical_url: "https://avascry.com/printing/serum-sovereign-one"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Serum Sovereign
- **Mana Cost:** `{4}{U}` (CMC: 5)
- **Type:** Creature — Phyrexian Sphinx
- **Power/Toughness:** 4/4
- **Keywords:** Scry, Flying

## Oracle Text
Flying
Whenever you cast a noncreature spell, put an oil counter on this creature.
{U}, Remove an oil counter from this creature: Draw a card, then scry 2.

> *千の謎、そのすべてが「ファイレクシアの栄光」というただひとつの答えを持つ。*

## Top 4096-Dim Neural Synergies
1. [Sphinx of Foresight](/printing/sphinx-of-foresight-prna.md) — Creature — Sphinx
2. [Sphinx of Magosi](/printing/sphinx-of-magosi-c14.md) — Creature — Sphinx
3. [Horizon Scholar](/printing/horizon-scholar-plst.md) — Creature — Sphinx
4. [Prognostic Sphinx](/printing/prognostic-sphinx-prm.md) — Creature — Sphinx
5. [Witness of Tomorrows](/printing/witness-of-tomorrows-thb.md) — Enchantment Creature — Sphinx
6. [Consecrated Sphinx](/printing/consecrated-sphinx-ima.md) — Creature — Sphinx

## Printing Details
- **Set:** Phyrexia: All Will Be One (ONE) #405
- **Rarity:** Rare
- **Artist:** Chris Rallis
- **Total Printings:** 13 across all historical editions

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