Classes focused on heavily debuffing opponents; they have high crowd control capabilities.
Weaknesses of Hexer Classes
Hexer classes can weaken other enemies greatly, but they rely on debuffs to get the best advantage around enemies. Avoiding their crowd control would make them struggle to fight against other classes. Hexers are usually weak without their debuffs to enemies, so avoiding a hexer's crowd control and debuffs will spell doom for it.