A plugin so that hostile mobs can fight each other, like when a skeleton hits another skeleton or a zombie by accident it's aggroed on them.
I dont think this is even slightly easy but you CAN use Citizens 2 to make hostile mobs with configurable targeting settings So you could make BAndits who attack in groups, but are also so evil that they'l fight amongst themselves if they accidentally hit each other You could make these bandits target monsters and stuff too to get your mob vs mob effect
well, becaus the setTarget is really buggy and not really working well ( what i heard ) this is pretty hard