1. Upgrading artifacts are just worst! It's truly agonizing when artifacts with best stats would just straight up being ruined with terrible substats being upgraded instead. I get to farm good artifacts for weeks to months only to destroy it with totally useless substats. 2. Everything is just expensive as hell and the event rewards are just not worth it. Reduce the wishing cost to at least 100 primogems. (Fix the RNG system or it will totally destroy the game in the near future.)