Wuthering Waves has a ton of intriguing mechanics that players can level up from time to time. However, they won’t be that easy unless players focus on their Union Level. Union Level is an important system that affects many other mechanics, such as the SOL3 Phase Level in WuWa. If you’re looking to level up your SOL3 Phase Level in Wuthering Waves, this guide has covered everything you need to do.

Since the SOL3 Phase and Union Level are linked in WuWa, everything players do in the game will directly or indirectly affect the amount of Union Exp they get. However, that's not all if they want to level up their SOL3 Phase, as it comes with more challenges.

The only way to increase your SOL3 Phase Level in Wuthering Waves is to increase your Union Level. The phase level will increase for every 10 Union Levels. Once you reach a certain Union Level, a special Quest will become available and players must complete it to permanently increase the phase level.

Once players reach Union Levels 20, 40, and 60, these special quests must be completed for the SOL3 Phase Ascension. Otherwise, the Union Level will be capped and cannot be increased further for the time being.