Li Shenron
Legend
Now it just says they don't stack, as far as getting "extra extra" attacks. It says nothing about adding levels together in any way, shape, or form, for number of attacks. So it really is entirely class based now. 5 levels in fighter or 5 in paladin or whatever, but not a combination thereof.
Thanks for the heads up!
This final version is actually as simple as it can be, which is good, and no weird results from some combinations. I don't think the level-merging rule added anything to the game.