You know you dont need to Aard the little bell right? You just ring it by hand.I've never had an endurance problem, hit the first one, run to the bell ring it, by the time i get to the second i have enough to hti it too without OWl.. Owl just assists on the second run.If you are stopping to fight or aarding the foes then this may be the problem. Clean up the bulk of salamandra before you go and ring away, then just focus on the frightner.