Today's lesson? Fire was the fucking devil. Additionally Handy learned that his healing factor isn't perfect. Much like the Salamander salve which he kept on hand, blood healing didn't go the whole way and didn't cover over scars after a certain period. So his little gift from Hectoir was still present, as were the ones he received from Shortbeak. However this also meant the wound he received from Geoffrey, while healed, still left a small scar. Meaning as useful as the ability was, it had a tiny window if Handy wanted to avoid disfigurement.