I think you have to have branching combos, and options. In my example of samurai, I mention hellish slash and northern slash. Both are based off of how many DoTs the enemies have, and both combo off of one of your ability. Their effects are different but offer gameplay variety and more complex rotations. I just think you need to look at warrior rotations or monk rotations for more ideas on how options could work; that said, min/maxers will always come up with the optimal rotation but the point is there should be several combos. Maybe I didn't fully understand your post but it looks like there aren't very many combos, and the rotation doesn't look all that fun (reminds me of 123 paladin). I do like your ideas though, and love the ability names.