nice idea for the story, yes and make it a harry/daphne/tracey
and tonks as a new champion of the light well thats a new one.
about cliches well it could be worse like omg harry gets a letter from Sirius and the go to knokturn alley and buy dark arts books and after a week of training owns voldie and dumbles ... now thats a cliche.
Author's response
Damn. You just gave away my plan for the remainder of the summer. oj