I use the Plesioth Crystalsword GS, and full butterfly armor and take him down pretty easy, I socket for sword sharping skill, which isent vital, so can put whatever you want in it.

Thanx everbody ill try again but with a bow, bows r kinda cool but i hate the armour 

or the crystal mace thanx again

But whats his element weakness

Theirs not a list of all the weakness of all monster i would be very useful

I usually use light bowguns with water-s rapid fire, water element dual swords, water element bow or nargacuga bow. It´s pretty easy hunt him with these weapons.

If you are using bow or bowguns, use the water, poison and piercing bullets.

If you are using dual swords use pitfall traps and bombs to help breaking his stomach.

i would usaly use a bowgun or bow but for sword users i would recomend duel swords there special attack cant be bounced off

personaly i would not care which i would use