First of all; great and fun game!
And it runs smoothly on my Linux system.
Finished the game a couple of times before I decided to make an optimized archer.
I started with 20 unused skill points and learned from the trainers before adding any skills.

Uh, that's alot of guards! You get this many if you kill the king twice.
(Kill him, put in the Crux and kill him again. Guards get summoned twice.)

Critical + Nefarious attack = one hit kills a guard

High stats and very strong, but keep in mind he's lvl 21.
Bow skills is lvl 68(+4).
Dex is awfully overpowered. You get accuracy, damage AND armor rating at the same time.
Is there really a need for any other stats?
Yes I started out as a healer, for the added MP bonus.
The perception is for MP and regen, which is needed since this guy is rather spell heavy.
Beside 2-3 points in Endurance to make it hit the breakpoint (15) it's all perception and dex.