The game has a really unique battle style, which uses auto-target with an aiming system. Because of this Blade and Soul has an extremely dynamic combat, which, in comparison to other fighting MMORPGs, is very unusual.
As of now, there are twelve classes in total. Each class of heroes has a unique playstyle. Assassins are shadow fighters that try to stab you in the back, Destroyers are slow but have powerful attacks, Summoners are masters of spells and area effects, Blade Masters deftly parry blows, responding with sharp and frequent attacks.
If you feel that you're not ready to fight in real PvP battles, then you can always start a training arena, where you can fight with other newcomers and sharpen your skills for the real deal. Make no mistake: the real draw to Blade & Soul is its fast-paced PvP.