Another thing about UM came to my mind.
Current:
lvl1 - more than evry 2nd spell goes through
lvl2 - every 2nd spell goes through
lvl3 - every 3rd spell goes through
lvl4 - evry 4rth spell goes through
lvl5 - evry 10th spell goes through
Since it is now not a more situational version i think it should be changed to be 90% resistances on all lvls but make it 6,7,8,9,10s seconds ( or 5,6,7,8,10 for that last level boost).
Why i think that would make more sense:
The reliability of it blocking should be given on evry level considering the changed dynamics on it.
It is more likethe very situational SoW or Escapist, which both have the right approach there - give a reliable effect for a short amount of time, if they were not kind of reliable the cost vs. effect ratio wasnt given.
In short:
Low level UM at the moment is barely interesting, i feel forced to get it to level 5 to have some reliable performance on it.
I might go with a shorter duration though for some cases, but the effect should be reliable to some degree.