I have created a Beastmaster that mainly uses Spriggan Form together with Thorn Totems to sustain mana. In addition I use Wolves, Spriggan and giant vines to slap enemies senseless. It worked incredibly smooth in the campaign and now I have a fifth skill slot that I do not know exactly what to do with it. Use another companion instead of a wolf? Which one - Bear, Raptor, Sabretooth, Scorpion? Anything else?
The character looks currently something like this: https://www.lastepochtools.com/planner/KBgzakQa
The gear is just random stuff with minion affixes and defense.