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Geometer's Arthropod

Geometer's Arthropod

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Secrets of Strixhaven

#300 · EN · Rare · 2026-04-24

Borderless · Inverted

Browse all 3 printings ↓

Geometer's Arthropod

{G}{U}

Creature — Fractal Crab

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.

Power: 1

Toughness: 4

Artist: Michael MacRae

Color identity: G, U

Reference prices

Reference prices by finish and currency
FinishUSDEUR
Nonfoil$0.64€0.33
Foil$1.05€0.70

MTGO: 0.02 tix

Data snapshot 2026-10-22. Not live offers.

Use in a combo · Use in a deck

Editions & versions

3 printings across 2 editions. Choose a printing to view its artwork and details.

Reference prices · Data snapshot 2026-10-22. Prices vary by seller and condition; — means no quote.

Combos using this card

No combos yet.

Format legality
Standardlegal
Futurelegal
Historiclegal
Timelesslegal
Gladiatorlegal
Pioneerlegal
Modernlegal
Legacylegal
Paupernot legal
Vintagelegal
Pennylegal
Commanderlegal
Oathbreakerlegal
Standardbrawllegal
Brawllegal
Competitivebrawllegal
Alchemylegal
Paupercommandernot legal
Duellegal
Oldschoolnot legal
Premodernnot legal
Predhnot legal
Tlrlegal
Rulings

2026-03-20 Geometer's Arthropod's ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered or otherwise leaves the stack without resolving. In that case, use the value of X as that spell last existed on the stack to determine the value of X for Geometer's Arthropod's ability.

2026-03-20 In some rare cases, the value of X for the spell on the stack may be different than the value that was chosen when you cast it. For example, if you control Unbound Flourishing (an enchantment with "Whenever you cast a permanent spell with a mana cost that contains {X}, double the value of X.") the value of X may have been doubled. In those cases, use the value of X as the spell exists on the stack at the time Geometer's Arthropod's ability resolves to determine the value of X for Geometer's Arthropod's ability.

Current Oracle text is shown for every printing.