I know this forum's probably getting sick of ToI + RtL integration questions. But, I just picked up ToI today, and although I've got a good grasp on how feats integrate (which everyone else seemed to be griping about). I couldn't find any threads about this issue.
My question is: How much would the overlord need to pay to spawn the new monster types in a battle with a Lieutenant?
I'd like to hear how other people solved this.