2.5.1 Co-Op Test Teams
Current recommended teams for people to test in Co-Op are:

Yixuan + Lighter + Lucia
Yixuan + Lucia + Lucia
Yixuan + Yixuan + Lucia

Miyabi + Yanagi + Lucia
Miyabi + Yanagi + Lighter
Miyabi + Miyabi + Yanagi

Lighter + Lighter + Lighter

Note: These are not necessarily the best teams to use, but teams they want to limit test and see how they turn out.