So last night I did the nightfall, I have 2 plan c's but no other legendary arc damage fusion rifle. So I constantly have to weapon jockey amongst my 3 characters. Last night after a nightfall I was given the calling I think it's called(legendary arc fusion). Then I get to the tower and turn in some engrams resulting in a cryptarch level up. Oh what's this? Legendary heavy engram. Probably energy when turned in. Holy shit my Christ! Gjallahorn in solar! I am always getting shit like this! My group hates me because I understand RNGesus!