Ketu Dracotail 
15
Normal SpellAdd 1 "Dracotail" monster from your Deck to your hand, then if your opponent controls a monster, you can Fusion Summon 1 Dragon or Spellcaster monster from your Extra Deck, using monsters from your hand or field. You can only activate 1 "Ketu Dracotail" per turn.
Printings:
Justice Hunters: JUSH-EN008 (Super Rare) - 2025-07-31OTS Tournament Pack 29: OP29-EN003 (Ultimate Rare) - 2025-10-15
Prices:
Cardmarket: 0.02 €TCGplayer: $ 0.28