Being a doctor has its advantages. One of them is the ability to heal yourself. Amy Sage has this ability, among with many other magical attributes. Natan...has a gun and some attacks that don't really do a whole lot. But it's going to be a lack of healing that takes him down. She can heal her own wounds quickly and easily, for as many rounds as necessary, in between her own attacks. With no way to recover, Natan will slowly but surely be worn down by the dedicated physician, even though her individual techniques are not particularly impressive. With a slow but sure pace, Amy's victory is inevitable.