Posted 03-12-2023 00:11:30
I think it gives you a higher chance of fighting one of the rarer non-boss demons in the next battle, thus getting more XP. (It does not increase the chance of fighting a boss demon in the next battle, though.)
(I'll add Summoning Stones to my unofficial battle guide when I'm next at a computer. I thought I already had, but apparently not.)
This post has been edited 1 times. Last edited on 03-12-2023 00:14:16.
Need site currency? Playing with my hundreds of companions
here can earn you a decent amount of both blue stones and reactor stones. Companions may be played with once per hour (total, not per user). If nothing shows up, check back later.
Still on AO3
here - Forest of Mirrors, Dragon Cave, MagiStream, Jelle's Marble Runs, and original fiction.