If your M.O. is going to be "spam bash and let crashing do its thing" then what's the point of axe?
I might also swap out something else for Greeting. Against a rager you're always going to have size advantage, so your bashes should already be pretty effective, right?
Cry of Thunder could work well, except for the fact that a nexus warrior is going to have haste (via the bond) more often than a non-nexus warrior would, so Cry is slightly less useful for him.
Ward could work well, or maybe Riddle. Or heck, Fist of the Titans, just since so many ragers *also* have Crashing.