barbs are very under powered when it comes to pvm. pvp they are great. the method i use for fast leveling on a barb is a fast chaos. on seals 1 2 i wont use my preattack of howl to push monsters away from me and my main attack is concentrate. seals 3 4 5 ill howl then telestomp concentrate. the goal is to use a pb grief with a ss bered so i have res and max dr with block while leveling to reduce the risk of dieing. then ill kill diablo and pop into nith and check for vipers, if none found ill do my standard howl then telestomp with merc. when i pop into baal it will be during wave 3. then when i leach for 3 4 5 + baal exp ill be getting 100-110k exp a run. a modification to this method is i can kill nith first then go to act 1 take my helpers tp grab a exp shrine then kill diablo with shrine (fast chaos -> shrine -> diablo exp kill) then baal with stale shrine and you could get 130-140k ish exp ill need to recheck how much but its in this range. its best to have a count down timer because the shrine only lasts 144 seconds so its very likely the exp shrine will fade before baal exp. i hide so i dont get curse proped and lose the shrine in throne and in baal chamber.