Had one of those totally-obvious-in-retrospect ideas and I'm quite happy with the capstone now. Still needs testing for mid/late-game scaling, but it's definitely fun. Did a couple of hack jobs to replace icons that were duplicated from other skills, so e.g. you won't accidentally turn into a robot when you meant to summon one. Hopefully my actual-artist fiancee finds it in her heart to supply something less horrid. It's probably time to make a release thread, now that I think about it. But for the moment, v0.4.0 is attached to the first post.