hi , i'm new here and why isn't there a stat reset option? if i want to switch from spear to two handed sword as a knight or lord knight , i won't be able to do it .
There is no reset stat here, as far as I know. And apart from maybe when we get to 3rd classes, I doubt there will be one. So if you want to build a AGI or VIT knight, you should plan ahead. I would suggest going for the PvM build that suits you the most, and then when you rebirth going for a more PvP / MvP oriented build.
I don't really see the problem stat-wise. Even without any base AGI, you can still get to around 180 ASPD with THQ and Berserk Potion. I'm currently leveling my forger smith on the side, and it's not really a problem to have +- no STR and +- no AGI (both at 20 or lower), you just need to fight the right monsters.