Be it healing damage or destroying evil with blessed magics, Cristo's damn good at what he sets out to do. Princess Alena's guardian certainly will need a quick victory against Millenia, not something he normally specializes in with his physical strikes. That isn't his only method of victory. He'll be using his highly accurate instant death magic here to knock out the Wings of Valmar before she can get going. He's faster than the sluggish Millenia, which is the key to the fight- along with Millenia's gameworst magic defense and complete lack of a way to slow down, let alone stop Beat(ing).