Bishop Damage Equal to Archmage Damage

An attack that hits three targets does less damage to four targets than an attack that hits four targets. Big surprise. You might as well complain about Fire-Poison doing more damage than Ice-Lightning since they can hit more targets and DoT too. And just so you know, Ice Demon does more damage than either on mobs of six, so it's not useless, and if the monster is neutral, it does more damage on mobs of four. And if you're going to ignore range, might as well throw in Teleport Mastery too since that's a gigantic boost with Chain Lightning's speed.

You should do extra damage to elemental weakness with your damage over time. Turn off elemental reset and make sure you're attacking something you're strong against?