Does anyone know a reliable way to farm the red shards (fei shards?), I know where to farm money and exp, but now I'm out of the shards to revive and rank up all the characters, the only way I found is to get lucky and get a shape fight while exploring which is super rng dependent.
As far as i know - shape fights are the only reliable way to get shards.
You can speed up this process a bit with debug mode (SHIFT+ENTER+F2), after it's activation you can click left/right CTRL and that will allow you to go any direction even if you encounter a fight, and you can do it until you encounter shapes fight.
By the end of such farm every section of location map can be filled with normal fights.)) Edit: Added a screenshot