Please remove green shards from anything above level 10
It is very frustrating to run the highest level possible for me and not getting a 5 or 6 star item but 2-5 green shards. Those are not even beneficial in comparison after mid-early game.
Please also remove XP-potions from that level onward. At least I am totally frustrated when I run 20 dragon runs and get half of the rewards in potions and green shards.