Ryu (Breath of Fire) vs Mariko Yashida

Ryu (Breath of Fire) is a very strong and capable swordsman. He has considerable power even before he uses any of his dragon modes and other abilities. Mariko has also grown very skilled over the years but ultimately she isn’t nearly powerful enough to stop Ryu. She doesn’t have his level of experience or the finishing blow type of moves like the dragon forms. That is what will hold her back here. Ryu (Breath of Fire) wins.

Kula Diamond vs Mariko Yashida

Suggested by iKknowledge Mariko has the definite type advantage here which is important but I don’t think it’s going to be quite enough this time. Kula’s ice is at a disadvantage but she makes up for it with her expert hand to hand skills and sheer power behind the ice strikes. Mariko’s fire will not be enough to melt the attacks in time and she doesn’t have the stamina to keep it up nearly as long either. This is where combat ability makes the difference. Kula Diamond wins.