I just think a few of you would find this to be interesting incase people have yet to try and make their own followers.
I was making a vampire follower, and I gave her vampiric drain of course. But I think I gave her vampiric drain 8?
I didn't know the differences between them so, I just threw in whatever I saw. Anywho, this ended up being the vampire lords blood bomb thing! So she can cast the spell while in human form. And hell if I knew how to mod I'd make it so it was a spell my main character could learn.
That's not the interesting part though. What's really interesting is the game does not see a difference between her casting it, or me.
So every time she kills an NPC with her blood bomb, it actually advances my perks in the vampire lord tree.
Just something for people to try out, and for those who've never made a follower I'd recommend trying it on PC of course. It's not all as hard as I expected it to be, pretty straight forward after watching a youtube video lol.