They need to have a way to make ascendant shards and energy convertable into eachother like how you use radiants wiyh eris. They also need to make it so that you can combine like 10+ of these into the next higher teir. So 10 ascendant shards plus 2500 glimmer=1 radiant shard.
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They won't do it, because it will make upgrading light armor too easy, they don't care about weapons though, that's why energy is a more common reward