Codex Alera is Jim Butcher's fantasy series. It's very well done, and I love it. Starts with
Furies of Calderon, goes through five more books with Fury in the title, and
First Lord's Fury is coming out this November.
Alerans have elemental magic in the form of furies. There are six elements - earth, air, fire, water, wood, and metal. Every Aleran has at least one fury, with multiple furies being not uncommon, and the nobility usually having a fury of each element.
Besides the obvious elemental abilities, furies often have secondary abilities. Earth furies make their partners inhumanly strong, allow their partner to calm animals, and make other people horny. Fire furies allow their partners to put fear into people (and also some other emotions, as they seem to be liked by career politicians for giving speeches, but I am not sure what those exact other emotions are, and I am damn sure about the fear.) Air furies make their partners inhumanly fast, allow them to create illusions, and allow them to manipulate air into magnifying glasses. Water furies allow their partners to heal and shapeshift, as well as giving their partner receptive empathy. Metal furies make their owners insanely good with metal weapons, as well as allowing them to ignore pain (including the pain of reading other people's emotions if they also possess a watercraft fury). Wood furies make their owners insanely good with wooden weapons, as well as giving them incredible stealth among plants as plants will move to make them completely unnoticeable.
This is all very cool.
This led to doing some silly stuff with an Avatar universe where they have Alera-style elemental furies instead of 'bending. So we've got Aang being a First Lord-level powerhouse with all six elements, we've got Katara the watercrafter, we've got Sokka the metalcrafter, Song the water and earthcrafter...
We've got Ozai with fire and air furies, and Iroh with fire and earth furies.
Some scribbles I did for
suzukiblu and
dark_puck( Iroh vs. Ozai, Alera-style, present tense )( Song vs. Iroh, Alera-style, past tense )