Wrath is one of the four horsemen of apocalypse but even he too gets bored sometimes so he had an arena built for his own amusement but when he's not using it you can it has the natural ability to make anyone caught inside aggressive to each other resulting in a free for all bloodbath these can lead to effective results with big groups. If there is a powerful foe in the arena (3+ levels higher than others) everyone in the arena will target the powerful foe effective for turning big groups against their leaders.