Amatsu tips please

I'm farming Amatsu for mp accelerant to look for a Berserk 2 tailisman (currently just using full Chaotic / Nephilim). I'm probably averaging 15 minutes, which is a lot better than the 22 minutes for my first solo kill, but I'm thinking there's probably a faster way to kill him than DBs helicopter style. Maybe something ranged since I wouldn't have to chase him? Also I have no idea what you're supposed to do when he does the aerial wind tunnel. If I try to wirebug forward of backword I just hit the tunnel.

https://preview.redd.it/f3jevvqtb7qd1.jpg?width=1280&format=pjpg&auto=webp&s=74840de1d728ea8e78359b327cf0cd6bba31ab72