My request is actually for the Pathfinder Bestiary. I've been recently running a high level campaign, and the rules in 3.5 for scaling monsters up in HD are seriously broken. On the whole I don't care for 4e, but the ability to easily scale monsters a few levels is really nice. Being able easily scale say a CR10 monster to CR13, and have the number come out right for CR13, would be a huge help. By easy I mean in a couple minutes on the fly when the players jump the fence and I need to make up encounters as I go.
