I'm sincerely glad you liked it Sephex, I tried to pick the Sephexiest music I could!

Also for anyone else struggling with floor 11, I advise hitting his poison weakness. RPG Maker doesn't visibly display poison damage (your only clue is to watch his HP bar creep down) but trust me when I say that it does a lot more damage than you'd think, particularly if you get him early and keep applying it.