Common shards feel useless and although it has no real impact on gameplay since the loot vacuuming and auto-transfer changes will still tend to make more than one player unhappy (which is one too many for something so minor / pointless).
Suggestion: New woven echo with shard reforging bench as reward. One possible way it could work:
- UI shows affixes by affix group with count of shards owned.
- Select one or more affix to reforge.
- Warning that maximum possible shards within selected affixes will be reforged.
- Selected affix shards are reforged 5-for-1.
- Reforged affixes have chance to be one of a set of new affixes only available from reforging.