I think not having Icebreaker is the definition of a casual. There have been so many opportunities to get icebreaker during the time this game has been it outs silly. Edit: why is it always these types of comments that get tons of feedback I'm not too concerned about how we define casual but i can only compare myself and my friends. I know this is a small comparison but i would think that a "hardcore destiny fan" would be one who would buy the game and played it at launch and has consistently sunk hours into the game. Coming in late or quitting for a longer period of time would make you less hard core than someone who had been doing that. To someone like me, who started from the beginning, has seen icebreaker at least 2x from Xur and has run a lot of content to hopefully see it drop a few time. But who am i to talk, I didn't buy Gallarhorn during the 2nd week and i still regret it.