The Triwizard Tournament

[hogwarts AU) Kara has every reason to hate the triwizard tournament. For one, it's the reason the house quidditch tournament is cancelled. But on the other hand, it brings Lena Luthor to Hogwarts, so Kara really can't be all that upset.
Lena blows into Kara's final year at Hogwarts much like the winged horses that carry her. Kara is done for from the moment she sees her.
Unfortunately, Lex Luthor flies in on the same breeze, intent to do anything in his power to keep Kara and Lena apart.
Kara never intends to enter the tournament, but circumstance and the universe have other plans for her. She faces challenges far beyond those in the tournament; but, a deep magic lies within for when she needs it most.