Yep, I spent somewhere between half an hour and an hour farming and got myself about 5 exotics, which helped boost me right up in light level. Scourge of Winter was what I was using at level 14. Simply Use the boost, pick away at the boss until he was nearly dead, then run up and blast a rocket killing us both.So I've just read that the 'three of coins' consumable that xur has is ridiculously good/game-breaking. It increases exotic engram drop chance for your next boss kill and apparently on average you get one drop per 5 consumables, which costs 7 coins. Bosses can be any level though, so it includes the piss easy bosses from story missions. If you have plenty of strange coins and the will to farm, you can get a load of exotic engrams quickly and easily.