I have no idea how you can get to rank 25. After rank 16-17 I am always blocked by top players with 1-5M in each stat. What are the stats of your Frecly? My Ice is at 1.1M/600k/350k now. I've choosen Ice because it's 15-20 minutes after reset to reach her, so I can quickly unlock her and send her training without wasting time. My second best (with better stamina but untrained yet) is Pantress.