---
name: "Geometer's Arthropod"
mana_cost: "{G}{U}"
cmc: 2
type_line: "Creature — Fractal Crab"
colors: ["G", "U"]
color_identity: ["G", "U"]
keywords: []
set: "PSOS"
set_name: "Secrets of Strixhaven Promos"
collector_number: "191p"
rarity: "rare"
artist: "Joe Slucher"
oracle_id: "7f577b46-c69d-4c75-9db5-7e10206b6b59"
canonical_url: "https://avascry.com/printing/geometers-arthropod-psos"
legalities:
  commander: "legal"
  standard: "legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Geometer's Arthropod
- **Mana Cost:** `{G}{U}` (CMC: 2)
- **Type:** Creature — Fractal Crab
- **Power/Toughness:** 1/4

## Oracle Text
Whenever you cast a spell with {X} in its mana cost, look at the top X cards of your library. Put one of them into your hand and the rest on the bottom of your library in a random order.

> *"Creatures that have survived blood-soaked millennia should not be underestimated."
—Nev, dean of substance*

## Top 4096-Dim Neural Synergies
1. [Genesis Hydra](/printing/genesis-hydra-nec.md) — Creature — Plant Hydra
2. [Anina, Natural Parallelist](/printing/anina-natural-parallelist-ysos.md) — Legendary Creature — Human Wizard
3. [Genesis Wave](/printing/genesis-wave-pfdn.md) — Sorcery
4. [Quandrix Apprentice](/printing/quandrix-apprentice-stx.md) — Creature — Human Wizard
5. [Glava, Five-Advents Mage](/printing/glava-five-advents-mage-mbc.md) — Legendary Creature — Human Wizard
6. [Canyon Crab](/printing/canyon-crab-otj.md) — Creature — Crab

## Printing Details
- **Set:** Secrets of Strixhaven Promos (PSOS) #191p
- **Rarity:** Rare
- **Artist:** Joe Slucher
- **Total Printings:** 8 across all historical editions

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