I got used to play only Arena and Tempest for refining stones and silver coins and that's it. Now I got a bunch of stones that I'm not using because everything worth something needs dew and I don't have the will to upgrade shit weapons to get dew, and coins are still way too slow to pile up. So I still play just those modes because habits, but I don't actually make use of what I get from it. And I'm not even bothering with grails because there's no one in that pool that I really really want at +10. Surtr is so awful to fight in Arena I don't even care to try to face him in Aether.
The only thing I actually need anymore are the universal shards and crystals to quickly level up new units without bothering with the training tower.
If I struggled to the end of my determination, to the end of my way of life with my followers, if the result is ruin, then this ruin is inevitable. Grieve. Shed tears. But you cannot regret.