Order Temple is the last map in the main campaign.
Additional Info[]
This section contains spoilers.
In this level, you must fend off Vorwick's army on 2 fronts, along with additional waves of enemies through temporary rifts that spawn inside and outside the temple.
The North spawns open on waves 1-2, 5-6. The West spawn opens on waves 3-6.
The following map details all of the temporary rifts, which waves they appear on, and the types of enemies that come out of them (on War Mage difficulty).