If you're going to issue the units to just run, then players can easily stop those 'feared' units order, or are you actually using something more fancy for the fear triggers? Also the 350 AoE is quite big, if I'm correct it's 2x the flamestrike AoE. But honestly hard to say without seeing it ingame. Hmmm, I wonder how's that even possible to trigger without adding event 'Generic Unit takes damage'. All the orb effects does not qualify for 'unit starts effect of an ability' so they won't run the trigger upon attacking. While other stuff is rather lagfree, if you are implementing unit takes damage, then it can have disastrous effects on map's stability. How exactly are you planning to implement this mechanic? (Else than that the number simply have to be balanced after seeing him in gameplay) Once again how can you deal damage to enemy units when the hero is target via a DOT damage (Entangling roots for example), or something similar to that? I'm not entirely sure how can you even detect the damage of the spell cast unless it's something connected to the spellpower system you mentioned earlier. If so, will it affect regular spells such as unit's firebolt aswell, or just heroes spells? Else than that the scaling is rather bad, like you get the spell, -5 seconds, -10 seconds and -5 seconds. You should consider making it more... even? Else than that, solid spell. This thingy needs a damage cap for sure. I can also see a pretty easy way to kill enemy heroes with it. If you are able to drop magni just behind enemy hero, you can cast this spell, launching enemy hero inside your whole army, making it unable to cast spells and have -10 armor, which is kinda fully disabling the hero. It might be abused when used correctly by experienced players. In normal games it should be alrightish. Perhaps instead of damage I'd go with a lower cooldown and ATKSP/MS/armor reduction for units to disable them rather than damage. Summing up, imo it's a solid hero overhaul. The numbers have to be tested ingame, and some tweaks made to ensure that it can't be abused. However the most concerning thing is the 'W' spell trigger run.