Remember when Xur sold exotic shards? Make that a thing again because having to spend a total 13 coins to get a pice of armor You already got so you can turn it into a shard is not a fair trade. The shard is all a player wants and is less valuable then the piece of armor, only good for leveling up exotic gear and buying glass needles.
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https://www.bungie.net/en/Forum/Post/208114713/0/0