Board Thread:Questions and Answers/@comment-14.186.89.164-20180508095743/@comment-31479589-20180508134625

Yes. Iirc, Master is indeed beyond Impossible for level 50 players. I was unaware that you can't access Stone Grove Tournament, so it's even worse. I'm afraid, you are stuck at this point, thanks to that "Level 51 Armor" challenge and inaccessible Stone Grove :(