Has anyone tried this on the arc lash and with the cold/chilled mods? I did and with fire bolt enchantment it seemed to do more damage.
Iruul tested this enchantment on various skills and discovered that some skills are actively reducing CC values like chill. In particular, ice shards and ice blades, which show up on the skill tree with no Chill value. So when you use the frost bolt enchant on some skills, you aren’t getting 17% chill, you are getting some number less than that. (I think it’s less than half).
This is also the case with lighting skills. Like spark, chain lighting, ball lighting and any of the conjurations. They didn’t test arc lash, but the category of skills which have this reduction are skills that hit in rapid succession.
So yeah, it could either work really well, or it could have a hidden chill reduction on it and just not be worth it. You can test it by watching a bosses’ stagger bar. If it’s full value, you should be able to stagger the boss before his first red triangle from only using that skill. If you are at half health and he still hasn’t staggered, then the skill has embedded chill reduction on it.