i had a horrible run, i died like 4 times on day 1 and finished it at lvl 5, then i spent the entire second day running to noklateo to try to find its secret for the achievement only to get killed by astel before i ran out of time, i beat ancient dragon at 7, got to 9, and decided to fight the boss just as a formality and somehow won on my second try

its a fun fight, im really looking forward to the others, fairly scared of heolstor