Necromancers – “Assault” [Campaign 3, Mission 2]

In this mission, there is a treasure trove for mages. If you manage to level up Darkness and Summoning skills, you can visit it every 4 weeks to obtain all the high-level spells from the leveled-up schools.

In the next mission, there is not only a treasure trove for mages but also a pyramid. In the same way, you can obtain everything that you won't get in castles.