there are respawning mobs : on broken valey use the damned device to spawn new enemys after u got wings go to that flng fortress when is ghost kill all mobs and go to doors give bad answer all mobs on this lvl will respawn u can make this till your dont get borred or mobs stop give exp .

imho the not resp mobs are not problem most of modern crpg dont use respawns but hard lvled mobs in d2 sux the whole idea of damage based on your and enemy lvl is stupid becosue by half of game ur underleved even if u make 90% of all quests and kill every single mob and by secodn half of game ur overleveled becouse every mobs are lower lvl than u and they dont do any damage to u

even if u try go to cliffs before u got wings u got no chances to kill anythign thre cuz they are lik 7 lvls over u and they kill u instantly but after u got your wings they are just anyoing rats who hit u for 10 but have alot of hp so u need by 40 minutes kill this retardet creatures jsut to make one quest an is uber borring