Too short and easy, as a rouge class in this game i find that the end battle isn't even intense except for if you get cornered (which i did, multiple times), basically just get defense and regen bracelet with the 2 best rings of health, 1 max defense ring and 1 max regen ring and the best daggers (which i can get 2 of every single time i do the fight) and the skill tree is pretty simple, as long as you're patient for like 3 minutes you can do it
Maybe once it's completed.