I got your VM, so I decided to stop by and give you a rate. You've got a pretty good team already in my opinion. I like your Tornadus set the most, and I could definitely see that getting work done. I'll focus on some small changes for your team since it's already solid.
First, try Focus Sash Garchomp. I think that's the best item for lead Garchomp. You can catch some Lati@s' and other fast dragons off guard. Ferrothorn sometimes thinks it can set up, and you can just kill it with Fire Blast. SR Focus Sash Garchomp basically wins a match vs. Sun by itself. Sun can't easily kill Garchomp, and they have a lot of difficulty with Stealth Rock. Forretress comes in, and you can just use Fire Blast for the KO. Focus Sash guarantees you get the job done.
On Feraligatr, you should definitely squeeze Swords Dance somewhere in its moveset. At +2, Feraligatr KOes just about everything. I saw a calc where it OHKO'd max Defense Skarmory. It was pretty crazy. I'd recommend you drop Ice Punch for Swords Dance personally. Crunch is a good move for beating Jellicent. Waterfall and Aqua Jet should to plenty of damage vs. Dragons, so I don't think you have to worry there.
Finally, I'd recommend Trick Room Reuniclus instead of Calm Mind Reuniclus. Calm Mind is pretty mediocre these days. Usually it dies before it gets to set up because of all the high powered Water moves. Genesect and Scizor are other obvious liabilities. Your team is pretty offensive, and I think Trick Room would better mesh with the pace of your team. If all else fails, it can help you set up Scizor too.