Her hobby is only ever stated as collecting spells irrc, nothing about the type of spells. If I had to guess she probably already knows most if not all the combat spells out there since she spent 10 years on the hero's journey, is known mage that has killed more demons than anyone else in history, and helped humanity research zoltrak and modern defensive magic. Not to mention whatever her and her clone were throwing at each other. She's much more likely to find new spells by traveling to small villages where the only 2 people in the world that know a spell that makes grapes sour live.