God says use a hammer. O_O
i used the king lobby hammer to pound the crap out of it, and it is a water hammer so there you go.
Tactics
God used the tactic of running out and hitting the tips of the wings as it shot beam fire. O_O
It seems like a slow bad way to kill it, but if you hit the tips you will, a. Not get hit by the explosive fart. b. Be safe from about everything. c.not do a lot of damage, but again safety is important.
I used full blango u(dont ask >_>) and king lobbeh hammah.
so yes take it from a person who suffered the same problem you do nao.
Happeh huntin!!