R387,40
If you control no monsters, or all monsters you control are “Umbral Horror” monsters: You can Special Summon this card from your hand, and if you do, add 1 non-Rock “Umbral Horror” monster from your Deck to your hand. You cannot Special Summon from the Extra Deck, except “Number” Xyz Monsters. This card can be treated as 2 materials for the Xyz Summon of a “Number” monster that requires 3 or more materials. You can only use each effect of “Gorgonic Umbral Horror” once per turn.
