Ketu Dracotail [OP29-EN003] Ultimate Rare

Add 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.