Buffy the vampire slayer/Heroes.
Plot: Alexander 'Xander' Harris has always had the ability to understand how things worked but when Buffy Summers comes to town exposing the dark side of sunnydale to himself and his friends his powers begin to change and grow.
Rules: Xander has to have the power of Sylar from the TV show heroes.
He must be exactly like Sylar only he can take a demon apart and gain their powers. (magic, strength, speed, healing, ext.)
He must hide his ability's from his friends they can eventually find out about them or they can stay in the dark it's your choice.
If his friends do find out about his powers then you should have Buffy and Giles want him to either stop using them or they will kill him before he can be corrupted from the demonic powers. You can have Willow either side with Xander or she can betray him and side with Buffy and Giles.
Xander's should be with either Faith or Jenny Calendar, if he dates Faith then she should start out with only being with him because he can keep her safe with his powers. As for Jenny she should begin dating him in order to increase her clan's power with his ability's they should eventually fall in love with him. Xander can either be in love with them or he can just be using them for something.
Forbidden: No pairing Xander with Willow or Buffy.
No bashing of Xander, you can bash Angel, Buffy, and the others if you want.
Angel staying alive Xander must be the one to kill him.
No demon Xander. (Xander cannot become a demon or a vampire.)
Xander cannot be weak or a wimp.
Xander can't die or be killed in the story you write.