Today I hopped into iron banner, thinking to myself "I'm at 527 light, so it will be rough but I can atleast try to get some bounties done" 13 matches later, ive averaged above a 2.51kd and been top of the leaderboard quite a bit against teams that probably averaged 20-30 light higher than me. I was even able to win duels against guardians so much higher light that at near point blank range, my lunas was hitting 46 crit damage without magnificent howl active.. So there you have it, lunas howl is so strong that it can overcome a pretty significant light level disadvantage! EDIT: I am GLAD lunas is as powerful as it is, otherwise it wouldnt be worth grinding for.