highlight utility skills (cleanse, interrupt, ...) when effective

[LianaThorne]

Stunnable/interruptable stuff share the same indicator if you look at the cast bar, if I'm correct.

KB is pretty obvious outside of savage(?), the markers on the ground fanning outward in a circular direction/out in one direction/colored vomit puddle in the middle of the arena/insert random pattern here. If people die to it and still don't learn then that's kinda a them problem.

Esuna is one that I'd agree should be larger or more apparent though. I rarely see healers esuna anything in dungeon content.