How to get Ultra-Carnax Achievement - AQW

Ultra-Carnax Achievement - AdventureQuest Worlds (AQW)

How to get Ultra-Carnax Achievement?

Here is how:
1. /join ultracarnax
2. Kill Ultra-Carnax.

Note(s):
This Achievement is currently Legend-Only.
Ultra-Carnax cannot be stunned.
Defeating this boss will earn you the "Ultra-Carnax" Character Page badge.
"Devastating Beam" damage can be divided by the number of people in your party.

Screenshots:
(click on the images to enlarge)

That's it! Wish you all the best!