Polaris Nerf

From the announcement of the new CL10:

"Difficulty-wise, we’re intending SCL9 to be the challenging battle that players with strong rosters will face in order to battle for 6-Star Shards. SCL10 will have enhanced rewards, but ideally, you’ll need 6-Stars in your roster to really push hard on this difficulty."

Oh yeah, it might have been helpful if they put this notice somewhere in the actual game. I bet they're still defaulting everybody into CL10 too.