Mercenary attacks, Melee incoming dot, totems?

Taking more damage over time as melee seems to be everywhere and not just trials.

Are totems supposed to taunt enemies? They don't seem to do that when on the warrior.

Mercenary issues with controller. Sometimes you cannot shoot/attack

Finally, enemies seem to be and attack faster on console..maybe I'm seeing things here or maybe it's combined with the character not attacking that makes it feel this way.