Custom Scripts Question

[Aoikani]

I have a request for someone who might have an answer for me. I'm giving a good try on scripting, researching everwhere I can, and I'm finding it really difficult. I am trying to create a spell that a NPC can cast on the Player with the following attributes: Hostile, draining Attribute(Luck), Light (with visual effects) that would remain on the Player and can be customizable with colors/physics maybe something like the Twinkle effect). If someone can assist me a little on this I would really appreciate it, it's going for a Mod that I'm creating and thus would give you credit. It would be nice that such a spell could be used by NPC or Player also.