Betty groaned as Eris healed her and pulled the nail off her side. "Couldn't you dodge the other three?" She pulled another nail.
Even with a light dragon's blood, Betty was in the end a halfling. She didn't have any scales nor wore armor to protect herself. The best she could do to protect herself was a spell of the barrier magic family, the one called [Caster's Armor]. The spell covers the caster's body with a thin barrier of condensed magic that acts as armor, but it's an active spell that consumes a lot of mana to keep active.
Betty usually keeps [Caster's Armor] active during her fights, but deactivates it as soon as the battle ends to start recuperating her mana for the next fight. She thought the fight ended when Eris, Aella, and Merida were taken down, she didn't expect Mira to be waiting for an opening to strike.
Merlin did go on adventures with Alcott and his wife before the university and during it. As they were enrolled here.