another font glitch in the quest (makes it difficult to read) - Lucrative Swindle and Kidnapping the noble
Necromancer lvl 1 should cost 55 AP (AP cost from store) but in reality it costs 65 (at least from the starting warband).
Theurgic power / magic power increase additional cost it is NOT displayed. This is quite serious as you can mess up your AP army point if you don't know it. For example my priest of saluel (lvl 5) should have a total of +40 AP costs from its traits while it gets in the end +70 AP!