Heh, they're still much easier than in brood War, where you had to pick each Templar individually or deplete every Templar's energy in useless simultaneous storms (damage is not cumulative). Still, the area of effect was bigger and they did thirty-forty more damage, so I loved them anyway.

Storms are pretty useless in this mission though. Ultralisks and Hybrids can practically bathe in the stuff and not care.