So doing my last nightfall yesterday I finally got a icebreaker after 400 hours of gameplay. Obviously I was very happy as it's the gun I wanted most. I then proceeded to do vog for some shards, once I killed atheon I got a icebreaker drop, obviously it was a 1.0 and a free shard so that was good. I then finished up crota's end and got a THIRD, icebreaker in one day how was that possible! RNGesus is crazy