Ancient Copper Dragon FINAL FANTASY: Through the Ages, Mythic Limited: 2.0 If you hit them with Dragon of Mount Gulg (Ancient Copper Dragon), this likely will win you the game, but thats true of most six-mana cards
First, the biggest winner is Agathas Soul Cauldron
Whenever a foe searches their library, you draw and gain a life too
Regardless, Devils Play has been better than existing other options like Demonfire, Banefire, and Red Suns Zenith
If your answer is the ENG version because its cheaper, then get the JPN card (since its actually cheaper) If your answer is the JPN version, because value and desirability are tied, then get the JPN version, since you actually proved to yourself that the only reason you are considering the card in English is because the market decides its more expensive without any underlying fundamental