A new Entei has been revealed from Remix Bout, which releases in Japan on July 5th. Thanks goes to Bangiras for the translation!
[R][C] Rally Back: 30+ damage. If any of your Pokemon were Knocked Out by damage from an attack during your opponent’s last turn, this attack does 90 more damage.
[R][R][C] Fire Mane: 100 damage.
Weakness: Water (x2)