if supes is in character he probably get hurt and lose a few times..
he flies down tries to calm her down she turns into a jaguar or wolf pounces on supes and bites him...
two ways it goes either she goes straight to the throat kills him or he reflexively raises his arm and she bites his arm.
if its the latter he would throw her off till he can properly gauge her strength. she then turn into wendigo and slice him up taggle him..
supes would panic and blast her with heat vision which would screw her up a bit her magic attributes would help her regenerate ala wendigo.
supes would probably by then punch her pretty hard and knock her out.
supes..6/10