Who ever designed the invoker sill in the arena please recheck, its stupid that most of all classes are very mobile while her skill are all stationary. Cant even defend properly. BDM is really not very good on class balancing.

Mages are actually supposed to stay still and just nuke targets with great ammounts of damage, it is even actually confusing why they gave her that kind of mobility. What she needs are those stationary, ranged, one-shot skills, that needs to be charged for full damage.