Forbidden Trapezohedron
Normal Spell
Forbidden Trapezohedron is a Normal Spell. First printed in Shadows in Valhalla (2018).
- Type
- Spell Card
- Property
- Normal
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- 2018-08-16
- Printings
- 1
Card text
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.
Approximate value
≈$0.23
YGOPRODeck recorded a lowest available USD card-level price hint of ~$0.23 on Sep 25, 2026 (historical, not a printing-specific quote). It varies with printing, condition, edition, rarity, and grading. Check current listings before buying or selling.
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Printings & rarities
| Set | Set code | Rarity | Release | Price* |
|---|---|---|---|---|
| Shadows in Valhalla | SHVA-EN019 | Secret Rare | 2018-08-16 | $1.68 |
*Approximate, from recent marketplace listings, not market values.
Price hint history
Dated YGOPRODeck snapshots. These hints are not sales or market values.
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Forbidden Trapezohedron in other languages
| Japanese | 禁断のトラペゾヘドロン |
| Korean | 금단의 트라페조헤드론 |
| German | Verbotenes Trapezohedron |
| French | Trapézoèdre Interdit |
| Italian | Trapezoedro Proibito |
| Spanish | Trapezoedro Prohibido |
| Portuguese | Trapezoedro Proibido |