AQW - How to get "Ultra-Carnax" Achievement? (Legend only)

Here i'm gonna tell you how to get "Ultra-Carnax" Achievement.

First type /join ultracarnax.
Then kill Ultra-Carnax.

Total HP: 625,394



Note:
       Cannot be stunned.
       Defeating this boss will earn you a Character Page badge.
       "Devastating Beam" damage can be divided by the number of people in your party.

Good luck!!! ^o^