I beat it topping out at 50+ hours, never had anyone become immortal, would've seriously helped against the high dragon, harvester, the two pride demons at once, my first giant spider... I was also lv 27 at the end... as for the sister dagger Finesse I was using the Low Blade and Carta's Right Hand... I gave Finesse to Isabella would've looked better than having that and a Qunari dagger