i would like to understand what you are saying. Yes debuffs/buffs will gain proficiency during bursting. But you are saying that only the debuffs and buffs are adding to the exp. But during bursting if I just poke and combo with my cow am I going to get 50k or what exp? no. I'll get maybe 10k exp. If, during bursting, I use my debuff skills in the same order everything is the exact same then I use an attack skill instead of poke and I get 50k exp. I'm sorry but I can't understand how you can say that the skill isn't adding to the exp you gained. Obviously between 10k and 50k exp there is a big difference so it helped using the skill. It added to the exp so to me when you say this it means skill exp come from the exp on battle end with EXP u get by using this skill it sounds like I should get proficiency towards my attack skill. Maybe it's the way you worded things Nox but really that doesn't make sense to me. Only thing I wanted to say was I don't think it's about how much exp you get during battle because during bursting skills add to the exp you get and yet you don't get proficiency. That's why I said it's about the damage you cause to a single mob when the mob is around the same lvl or higher than you are. Because during bursting I do great damage but don't gain proficiency after the battle but if I go and fight a lvl 60 mob when I'm lvl 50 I will gain proficiency.