The Claw of Hermos

Normal Spell

(This card is also always treated as "Legendary Dragon Hermos".)
Send 1 monster from your hand or field to the GY, of the Type that is listed on a Fusion Monster that can only be Special Summoned with "The Claw of Hermos" (if that card is Set, reveal it), then Special Summon that Fusion Monster from your Extra Deck. You can only activate 1 "The Claw of Hermos" per turn.

Rulings – Yugipedia

Printings:

Dragons of Legend 2: DRL2-EN013 (Secret Rare) - 2015-07-16
Dragons of Legend: Unleashed: DRL3-EN067 (Ultra Rare) - 2016-08-18
Legendary Dragon Decks: LEDD-ENA23 (Common) - 2017-10-05
Dragons of Legend: The Complete Series: DLCS-EN064 (Ultra Rare) - 2020-09-10
Quarter Century Stampede: RA04-EN256 (Platinum Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN256 (Quarter Century Secret Rare) - 2025-04-10

Prices:

Cardmarket: 0.19 €
TCGplayer: $ 0.47