I did the quest line where you end up killing the troll. It was pretty fun and worth the time. It actually starts with you catching a troll in a cage while questing in grizzly hills. That troll ends up being the one you kill working with the ebon blade. I didnt finish the first part because of the collections. The second part was ok with ebon. When you get the point of controling the patchwork guys just set your team to the side and use 1 patchwork guy to blow up as many trolls as possible. What I did was let people gather up a bunch of trolls then send my guy over and explode them all to get credit. If nobody is gathering them up just have your guy attack a bunch to get a swarm for the explosion.

Also be sure to put the necklace thing that changes you to scourge on a keybind for all your guys. It wears off and you have to activate it again. Mine was bound to ctrl 7. The collection quest in this game makes me mad. This really hurts multiboxers. For solo people its not bad at all.