A little stabbing is fine too! Maybe he can get a danger-sense twinge, look around and be like "idk whats dangerous i guess EVERYTHING on this BATTLEFIELD" and follow her anyway and then ---

oh, for comedy, he has a spell that makes things around him run away. Maybe we could do something comedic like he can make the soldiers run in fear for a few seconds and like, use his 'rescue' spell to forcibly teleport her closer to him for safety and then she can be like lol, TAKES OUT A KNIFE. SINCE I AM HERE...