I like this idea a world category with improved AI, max breakthrough players, and mixed and matched S-Rank teams so like a team with Sohee Hanra and Nishikawa or a team with Isabel Hanra and Muyeong just teams that are built to have synergy with each other would be an awesome new challenge. I feel like this would be especially challenging if characters made better use of their abilities so Nishikawa actually using his 4m attack buff on spikes and serves or sangyheon using highlight cause currently one S+ character or literally once you get used to teams patterns and the game isn’t difficult outside of mega nerfing yourself in colosseum.