Forbidden Trapezohedron

Normal Spell

If you control exactly 2 monster card types (among Fusion, Synchro, and/or Xyz): Apply the following effect based on those types. ● Fusion and Synchro: Special Summon 1 "Outer Entity" Xyz Monster from your Extra Deck, and if you do, attach this card to it as material. ● Synchro and Xyz: Special Summon 1 "Elder Entity" Fusion Monster from your Extra Deck. ● Xyz and Fusion: Special Summon 1 "Old Entity" Synchro Monster from your Extra Deck. You can only activate 1 "Forbidden Trapezohedron" per turn.

Is it legal?

TCGUnlimited (3)

OCGUnlimited (3)

Master DuelUnlimited (3)

Rarity: Normal (N)

Genesys0 points

Price

About $0.20–$1.68 across printings and stores (as of Oct 9, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)

Price history & alerts

Printings

Set	Code	Rarity
Shadows in Valhalla	SHVA-EN019	Secret Rare

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