What I love about boulder bash is when the boulder hits a beam in the ceiling and does nothing. I've had that happen a couple of times.
Boulder Bash requires 2 geo though right?
Also, your character seems to be more 'pure' - might not be worth it getting to 8 int (even modified) if you want it to be more pure. Probably better to have another one of your guys/gals cast Oath of Destruction on you.
The 'Delay' button is fantastic. Means you can get two turns one after the other. Before my current setup with my lone wolf rogue (rapture, haste, save 3AP) I always used to delay then take two turns. This may be better for melee characters though come to think of it.
