Are you saying that when you win cards against those three they aren't upgraded cards?
If you are, you can't win upgraded cards from t50 even if they use them in their deck. Only 15% of AI5's deck is made up of upgraded cards, so chances are pretty good that when you win a card, it will be a normal card instead of an upgraded card. If you win a card against the FGs, they should always be upgraded so I'm not sure what's happening there. Also, your HP doesn't affect what you win from the spinners.