User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-28303251-20130305073615/@comment-1712810-20130305074710

I always bring up the targeting reticule when attempting arrow rain. I'm playing the Wii U ver. so I'm not sure which button you press for that, sorry. It's make a lot easier to use though - you can see the area where the arrows will fall.

You might have succeeded if it weren't a water element bow... Lagombi resists water pretty well... I actually defeated him with it though, got an awesome kill by launching arrow rain and having an arrow land right on his noggin. It was pretty epic. XD