Hildegarde's main role will be up front, since she has decent hp and can cast spells while attacking if she needs to. Her main weakness is her somewhat crappy AC, but she's got some magic to address that, and she can use her magus arcana for a rather substantial bonus to hit, if we are facing something with higher than expected AC.<br/><br/>Depending on how many other front line fighter types we have, and what spells she prepares, she could also take a more traditional support role, as well.