This mechanic has absolutely wrekt my mage in Torghast so many times.
If I actually do have frost nova off c/d when they spawn, by the time it’s worn off I’ve managed to get off 4 frostbolts tops and that doesn’t even dent one of them for 10% of their HP, let alone both. Then my barrier’s RIPed in a single flick of the wrist from either bear and I’m dead in seconds trying to kite for my life.