Originally Posted by
Aquillion
Most of those casters are Carnymancers, and my guess is that overlords generally don't know much about how to use them (and often don't trust them.)
Carnymancy seems powerful to us because we associate it with Charlie and Jojo, who are both masters of the discipline, incredibly powerful and well-placed, with the Arkendish backing it up. But in the real world, that touch limitation is absolutely brutal, and without access to links the stuff your carnymancers can do is probably fairly narrow - mostly just limited to buffs, which they have to actually be in the field to apply. On top of this, Carnymancy clearly has a significant risk of going horribly wrong and causing a backlash, and that's probably one of the few things people know about it - every so often you get a smart overlord with a strong carnymancer who drops powerful buffs on key troops, and it works well until suddenly it doesn't.