SB sch at 4.3 was probably the best version of sch that ever came out (when it had miasma 2 and energy drain both returned).The only thing missing from it if memory serves was shadowflare which they unceremoniously removed. I did level it a fair bit but I was still loving my astro.

It still had some problems like dissipation killing the fairy and its launch state was appalling with energy drain's removal.