earnest zinc
There is an over-supply of Mystic and Imprint stones, which for the majority of players have become useless, and an under-supply of Abyss stones, which instead are still very needed and obtained very slowly.
Also this makes farming lower raids (more) useless so it keeps lower players even more powerless in the economy than they already are.
To ease this problem add these exchanges to alchemists:
10 Red/Blue/Yellow Mystic -> 1 Red/Blue/Yellow Abyss
5 Giant Mystic -> 1 Giant Abyss
3 Red/Blue/Yellow Imprint -> 1 Red/Blue/Yellow Abyss
5 Red/Blue/Yellow Imprint -> 1 Giant Abyss
limpid escarp