So, details would take a long time, but the important ones are that my group of 3 (Most likely a warlord, a Psion, and a Brawler) are going to have their dreamselves end up fighting a load of non-spiritual Caulborn of various types. Oh, and allowing the players' weapons at least to count as ghost-touch for the sake of the martials.
Now, I'm still somewhat new to making encounters, but I've a real problem with making it too easy and easing off when the players start having trouble. So, I want to make an encounter that is a bit of a challenge on paper, and stick to that.
I'm thinking at least 3 Caulborn in some ratio of basic to Thoughtkeeper, with more coming in after a round or too as reinforcement. Probably no Chrestomath, just because I can't see them attacking intruders.
So, any ideas or further questions? How much of a boost to ECL is being Incorporeal?