---
name: "Petra Sphinx"
mana_cost: "{2}{W}{W}{W}"
cmc: 5
type_line: "Creature — Sphinx"
colors: ["W"]
color_identity: ["W"]
keywords: []
set: "ME1"
set_name: "Masters Edition"
collector_number: "23"
rarity: "rare"
artist: "Sandra Everingham"
oracle_id: "f1ae89ff-b23b-44b2-a30c-6f2ae3216189"
canonical_url: "https://avascry.com/printing/petra-sphinx-me1"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Petra Sphinx
- **Mana Cost:** `{2}{W}{W}{W}` (CMC: 5)
- **Type:** Creature — Sphinx
- **Power/Toughness:** 3/4

## Oracle Text
{T}: Target player chooses a card name, then reveals the top card of their library. If that card has the chosen name, that player puts it into their hand. If it doesn't, the player puts it into their graveyard.

> *What walks on four legs in the morning, two legs in the afternoon, and three legs in the evening?*

## Top 4096-Dim Neural Synergies
1. [Conundrum Sphinx](/printing/conundrum-sphinx-m11.md) — Creature — Sphinx
2. [Sphinx Ambassador](/printing/sphinx-ambassador-m10.md) — Creature — Sphinx
3. [Vexing Arcanix](/printing/vexing-arcanix-8ed.md) — Artifact
4. [Isperia the Inscrutable](/printing/isperia-the-inscrutable-gk2.md) — Legendary Creature — Sphinx
5. [Sphinx of Uthuun](/printing/sphinx-of-uthuun-c18.md) — Creature — Sphinx
6. [Sphinx's Herald](/printing/sphinxs-herald-ala.md) — Artifact Creature — Vedalken Wizard

## Printing Details
- **Set:** Masters Edition (ME1) #23
- **Rarity:** Rare
- **Artist:** Sandra Everingham
- **Total Printings:** 5 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: `legal`