I found a bunch of these guys surrounding the walls of the Anti-Troll Fortification along with Trolls, Troll Barricades and Troll Warriors.
1
Anonymous 18-10-2016 18:51
If you get that knowledge fast, consider you lucky ;p
2
Anonymous 3-03-2017 04:49
that is so very true
1
Anonymous 20-03-2017 08:15
Getting knowledge from these took pretty long for me, and there are only few of these trolls around the Anti-Troll Fortification. You can speed up the knowledge learning by using a fluid collector on each Troll Siege Soldier you kill. (You can also learn the knowledge of a monster by gathering it.)