The wound has healed, and although the scales won't grow back anytime soon, such a minor loss of scales won't compromise his defensive level. Leon didn't pay much attention to it.
He would have to summon the spirit he had back in the days when he played games in glory mode next time he encountered a well-prepared team of adventurers. After all, bullying the weak is one thing, but fighting a regular army is an entirely different matter, with vastly different levels of combat prowess.
Leon found an opportunity to return to his lair to check on it, which remained just as before. After much hesitation, Leon decided to move to the abandoned fortress.