User blog comment:SethOmega/Bracchidios Discussion/@comment-216.232.169.62-20130505145124

I've found the Jhen Mohran armour to be quite effective, with its 'Critical Eye+' and 'Focus' skills. Combine that with a water element weapon, and it makes the fight a bit easier (about 20 minutes, at least). Even though I've only fought him twice [as of this post], Brachydios definitely needs space in Rage mode, like previous users have stated.

One last thing: he tends to 'stick' to you like glue... a gunner set might have a better time, but I cannot confirm that myself.