User blog comment:Kakaputi/CAN U HELP ME PLEASE!!!!!!/@comment-765166-20100628204903

If you're going for Longswords and wantin to beat Diablos, get the Blango Destroyer LS Series, and upgrade it to the highest possible upgrade. Then, if you are great at dodging, the Hornetaur Armor set will suffice, negating its Roar with the High Grade Earplug.

Always aim for the tail. the Tail is its weakest part.

Also, bring 10 Sonic Bombs, 20 Gunpowders and 20 Screamers. The Sonic Bomb is very useful for when it burrows to the ground. Throwing one makes it stuck, yielding free hits. The 20 Gunpowders and Screamers are for extra Sonic Bombs, combining them produces one.

The Sonic Bomb doesn't work when enraged though.