Your guide is very well detailed and I agree with most of your choices. I have been playing Diablo for more than a year (alpha player), when he had a very different gameplay and was by far -in my opinion- the best character in the game. I am quite sad for his being stuck in Tier 4, because he is versatile and full of potential. A small remark : I'm not a big fan of Fire Devil, to which I will systemically prefer Demonic Strenght. It combines pretty well with heroes who pick Executionner...

I usually pick Rancor as a first talent, whatever the build I decide to make. I feel that even though Multishot range is an asset while kiting and/or if you pick Executionner later on, it cannot compare with the pure damage of Rancor, easily gained. Valla is all about position, and you will always find a tank or healer that can stun/root/slow. After that, I don't have an absolute build, I rely upon opponent composition (Tier 5 pick, in particular). Hence my question : is my T1 pick viable...