I won't be mean, and for kusharudaora, i use long sword ( either Smolder dragon sword or true devil slicer.
1# For the wind aura, just keep hitting it until it falls, then it should stop for a while.
2# While its in the air, use flash bombs to knock it out of the sky, or attack the tail as it uses attacks.
3# While its in rage mode, it is not too much more powerful than it usually is, and it is not much faster, either.
Also, you should know that i never play it safe in MHF2, so things like hitting the tail as it flys, and attacking it while the wind is around it are not suggested unless you have good armor.
And im trying to get a crappy video cammra so i can put guids on Youtube .