There should be a trade system now that there are/is:
no god rolls
no stats on armor, ghost shells, class items
single use shaders
single use transmat effects
no sparrow or ship collections
no ghost shell collections
           [b][i][u] Finally and most importantly[/u][/i][/b]
unlucky players a.k.a. bad RNG
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	That system would assume you might not have everything in the game. How could that possibly be?