I can't ever beat a GL Rey, she's too OP. It will be months before I get any GLs. But because I have all the other previous meta characters, I keep getting opponents with GL while I have none. I have been farming the characters F2P so i guess that's my fault for not spending 10k+ on pixels.
TLDR: I'm placing the toughest Defense every GA battle going forward with an opponent that has a GL. No feats for you.