[Lolzytripd]

I think the elephant in the room here is this

Elemental resist tanking is too easy/rewarding

1) Its stupidly easy to stack up to 25-50% to whatever element you want.
2) proccing a resist punishes the the person attack with momentum loss.

when a class /gimmick build revolves around doing a specific damage type it becomes extremely easy to counter. In this case void assassin (and hexer) are guaranteed to be doing dark damage. Verglas is guaranteed to do ice and without winters bite it would stupidly easy to counter, either by equipping extra ice resist or the absorb ice accessory.