You're thinking of Isatis.
I've done a gen of smoke bomb throwing/rock throwing
smoke bomb throwing is the true troll art, sadly their high weight makes escape difficult (no s on escape because you can only escape once... never twice)
I was 30/9 with max wm, pt, ath and the rest in ps I was wearing a kaftan and mostly played on siege playing the human ballista
It was awesome, but I'd recommend 27/12 or 24/15 if you want a more balanced and battle build.