There is a bug with mindstar set formations which allows a character to keep accumulating set bonuses and mindstar stats. While playing around with mindstar sets I've ended up gaining about 100 extra mindpower (before scaling), 100% mind and darkness damage, 70% mind penetration and so on. To me this indicates that after a set is formed, mindstar bonuses can become a permanent addition to your character. With a little dedications it's definitely possible to get the equivalent of wearing hundreds of mindstars in stats.
Also, set bonuses seem to persist even after the set is broken and the mindstars are replaced (for example I kept getting resonance buff despite unequipping and replacing the resonant mindstar).
Figuring out set combinations is pretty fun. I hope that when this bug is fixed it would still be possible to form multiple sets with two mindstars if their ego combinations allow it.
Character link
http://te4.org/characters/28466/tome/1c ... 7ce29eb31d
[1.1.3] Mindstar bonuses persist after set completion
Moderator: Moderator