Forgive me, I am an amateur team rater. I noticed a few problems, but I really don't have the experience or insight to help you fix them.
He's running Hail so a Focus Sash would be rather useless. That said, you do need to find some other item for Infernape since item clause is in effect for VGC play. Maybe consider an elemental gem?
Also, I would rethink the addition of Jellicent. Water Spout is awesome, but Water Spout + Hail is horribly unsynergetic.
Yep, i know item clause is in effect, i just didn't notice it xD.
I've modified it quite a bit, and i'll post the new version once I write up descriptions.