Hidden power fairy.

[UnicornDemon]

With the exception of useless normal types such as Pyroar and Bibarel, the only pokemon in the game which resist Ghost and Fire type attacks are Tyranitar, Mega Gyarados, and Hydreigon.

Right now, my choice scarf Chandelure has energy ball to deal with T-tar and Mega-G. He has no method to deal with Hydreigon, but the addition of hidden power fairy to his moveset would allow him to scoff at the puny dragon. Unfortuantely, when I tried to perfect this spooky slaughterhouse's moveset with the addition of hidden power fairy, I was not able to do so as fairy type did not appear in his list of usable moves.

When will hidden power fairy be implemented into Pokebank OU?

 

[Adamant Zoroark]

HP Fairy doesn't exist in-game.

 

[piikachuu]

on that note, if you're desperate you can use hp fighting; it hits all of those mons super effectively, though it's weak (no weaker than hp fairy would be, if it existed)

try asking here in the future

 

[The Immortal]

As LucaroarkZ said, Hidden Power Fairy does not exist.