I know that different levels of DoTs/Debuffs DO stack (Bio + Bio II).

However - what if an Arcanist and a Scholar are both casting Bio on the same target. Does the damage stack? Or does one override the other, making one casting redundant.

I've received mixed advice from party members in-game. Some claim they do stack (as the icon is displayed twice) and others claim that they don't.

Anyone know for sure? Can't seem to find this info anywhere online either, oddly enough.