The Troll Berserker is a very fierce fighter. He is a very skilled swordsman and is rarely defeated in a swordfight. And pain only makes him angrier, which makes him even more dangerous.
The Troll Tamer uses his whip to tame animals (and Giant Trolls) that will be used by the Troll army. He can also use his whip in battle, if he has to.
The Troll Wizard uses his Ice Wand to cast ice spells. He uses these spells to freeze enemies, which are then destroyed by other Trolls or skeletons.
The Troll Swordsman is the most skilled swordfighter of all trolls. He carries a large, shiny sword (which he stole from a knight) and a very small sword, which he uses to block attacks which he can't block with his sword. He also uses it as a secondary weapon.