Hi playingdivine,
How does one kill the Succubus?
Here's a recent link:
How do I Kill The Succubus? How does one kill the death-rider/dragon-rider in the dark forest?
Make sure your resistances are up. If not, have some purple potions with you and drink them up when you're in a battle with a dragon-rider. Also have a lot of healing or restoration potions with you. Dragon-riders usually have low lightning resistance so if you have a spell that has electical damage, use it. Distract them if you can by using the spell, Skeletal Wall. Otherwise, shoot them with arrows and just be a little patient or use something like splitting arrows, hell spikes, or deadly disks.
Thanks.