User blog:Arad1376/Moonlight Butterfly

Hi. this is my first post on this blog so bear with me if i violate any rules. i was trying to beat moonlight butterfly by myself in the dark root gardens and when it reached half health, it started to descend and it went underwater and missing i waited there for around 10 mins but nothing happened. i was wondering whether this was a bug or sth else? and btw in our fight it didn't even come near melee range it just stayed back and used its magic attacks.