|Set:||Shadows in Valhalla|
|Card type:||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.