Show: All formats Perfect Circle Edison
You can return a face-down "Cyberdark" monster to your Deck for the effect of this card, but you must show it to your opponent.
You can return a "Cyberdark" monster that is being treated as a Spell Card (by "Relinquished", etc.) to your Deck with the effect of this card.
You cannot use Fusion substitute monster like "Goddess with the Third Eye" with this card.