At what level should you see that start to go up from 0? . That is assuming you actually level your toon and don't get any buffs from any other source. i have a lev 9 toon that still have 0 increased chance. the only thing i have done is .... at lev 6 i dropped my weapon in town and logged another toon to give it + 5 enhancement (with voidstone fragment) and flame wep with that trinket. otherwise I've leveled alone with no other buffs . would doing just that change whether or not i get increase in my chance?
