I've seen some other people conplaining about this fight, but personally I didn't struggle too much with it. The wind was annoying, yeah, but never that much of a bother. I was using the Kadachi Pillar III Insect Glaive, and whenever he was in the air, I would just use the aerial attacks of the glaive to try and mount him, to throw him back to the ground. Still haven't done Master Rank tho, as I don't have the DLC. Even then, it's probably the 2nd easiest of the four elder dragons (counting Nergi), Vaal Hazak being the easiest to me, with Nergigante as the hardest. So overall, I'd say the Insect Glaive is probably the best weapon for this guy, but not 100% sure. Would love to hear other suggestions.