Suggested by Sonic It’s a battle of the myths. Euryale is a strong warrior but one who never really got to show off her abilities. She appears to be reasonably strong though and does have a blade. Medusa can her opponents to Stone with a glance but is rarely immune to the ability so using it is risky here as Medusa can simply reflect it with her shining sword. Medusa’s best tactic is 50-50 at best so I think it stands to reason that Euryale will be too much for her. It’s a close fight that could go either way but the increased range of the blade will give her the edge in the match. Euryale wins.