you should definetely bring back old 85 iss, in this way we cant reset elemental catalysis when we want. If we run rofl,
we cant use elemental catalysis twice in nayat boss or in jerath. Because after we use it, we must wait 30 seconds to use it again. In nayat boss we must use it twice, but this is impossible now because mobs die in a few seconds and boss also dies so fast. So, we cant wait for 30 seconds to use it again. And inside jerath boss we also must wait 30 seconds to use it again. You already nerfed mage classes before, you reduced their elemental damage from 72% to 64%. That was enough i think.
This 85 iss change makes mages so difficult to play, please change it to be an active skill again.