A Warning: The Maestro doesn't need your awakening gem
If you are a late game player, I would recommend not using awakening gems on 7-Star Maestro. There will be an opportunity to dupe him through content next month. I know content creators are already reporting on this as I said it on Vega's live stream a few days ago, but just wanted to share it here officially as well.
If you want more info, make sure you tune into our Live Stream next Wednesday December 4th 9AM PT, where I will share details on this and many more exciting things.