I am looking for a story, I don't remember the name. Willow goes evil and xander stops her by stabbing her in the heart through the back. The blade goes through her into Xander killing them both. Xander awakens a vampire. He goes to Angel and Spike for help. Dracula was the reason Xander became such a powerful vampire. Also, Lindsey is Angel's Childe.
In the second one I am looking for; Xander is attacked by a werewolf that was being trained by the Initiative. He escapes to Angel and spike in LA. His transformed state is a combination of wolf and hyena. They all go back to take out the Initiative and xander kills the werewolf pack leader and becomes leader himself.