You think you were unlucky ? Yesterday i have found my first legendary engram - it wasnt any weapon or armor - i got 2 strange coins... At first i was mad, first legendary thing and i got only some coins. Next i realize that these coins might be usefull, you need 13 to get some exotic things from weekend special vendor Xur. Whole day i was trying to get more of them. I got 11. After i dont know how many hours playing at 4 AM i finally give up... No exotic item for me this time.