Decided instead to try same style enemy, but based on the dragon priest model instead. It no longer uses the shout.
I used shouts, as I have made a short duration (1 second) freeze, which when hits the player changes to a cut scene of him being frozen, then him getting up, so 1 second actually results in about 5-6 seconds of no player control.
If made as a normal spell, it will get spammed.
If the dragon priest is inacapable of performing shouts, can I make a one use ranged paralyze spell? Idea is that the enemy attempts to freeze the player/follower, and then drains them.
