Yeah, they finally remembered to reveal it to the public.
Note: Text wording isn’t exact as it could be, don’t get neurotic over minutia, etc.
Quick-Play Spell Card
You can only activate 1 “竜呼相打つ” per turn.
(1) Show 1 “Dracoslayer” Pendulum Monster and 1 “Dracoruler” Pendulum Monster from your Deck to your opponent, your opponent chooses one of them at random. The chosen card is placed in your Pendulum Zone or is Special Summoned. The other Pendulum Monster is added to your Extra Deck face-up.