Like Arbiter of Peace, Arbiter of War is also key to the faction’s performance. Without the aura they bring, High Elves struggle to do a high amount of damage. While this is a melee unit it is actually a predominantly support unit that should be hidden most of the game. Unlike the aura from Arbiter of Peace, it is very easy for the opponent to take advantage of this one if they manage to place units into range and for that reason one should be careful to not give good options to the opponent, even if sometimes it will be inevitable.
Ironically for their names, the Arbiters of Peace will often be attacking round after round, but Arbiters of War are generally hidden behind lines just supporting the Arbiters of Peace, since as mentioned, allowing the opponent to take advantage of this aura is too powerful and should be minimized whenever possible.