(Yes, I am American and aware of the other definition of "bender" as it applies to English culture. ... I am NOT sure if I used the proper proper adjective though, so please be gracious.)
JOHN is the Avatar, and his Avatar training was going quite well until his injuries in Afghanistan made it difficult and painful to bend.
Sherlock, who is a frustrated and normally extremely jealous non-bender, puts all the effort he can spare into John's rehabilitation so he can do his Avatar-ly duties and have his sense of self-worth back. "Because nothing's so hard as living without a purpose," said The World's Only Consulting Detective.
Moriaty, meanwhile, can bend. He thinks that if he kills the Avatar, he can find his reincarnation when it's born through his criminal network and have himself a superweapon. All he needs to do is get past the most interesting non-bender he's ever paid attention to...
Avatar: The Last Airbender AU
JOHN is the Avatar, and his Avatar training was going quite well until his injuries in Afghanistan made it difficult and painful to bend.
Sherlock, who is a frustrated and normally extremely jealous non-bender, puts all the effort he can spare into John's rehabilitation so he can do his Avatar-ly duties and have his sense of self-worth back. "Because nothing's so hard as living without a purpose," said The World's Only Consulting Detective.
Moriaty, meanwhile, can bend. He thinks that if he kills the Avatar, he can find his reincarnation when it's born through his criminal network and have himself a superweapon. All he needs to do is get past the most interesting non-bender he's ever paid attention to...