>>12386226I doesn't look that good to me.
You know your TR team isn't that good when you NEED Trick Room for your strategy to work. A good Trick Room team works well outside of Trick Room, and uses Trick Room as a set up move rather than a condition that you must have in order to win.
Not only that, but your team doesn't have a really good synergy. There will be a lot of pokes that you wont be able to switch into easily once Cofagrigus is dead.
Still, you managed to win by a wide margin, and that's good. Cofagrigus is a really good, often overlooked pokemon, that does it's job really well when you play to it's strenghts.
I'd consider replacing Marowak or Metagross for Tyranitar. Sand seems to help you. Tyranitar is one of the slowest pokes in OU, hits pretty hard and tanks special hits like a mother fucker. It's not as strong as Marowak and can't set up TR like Metagross, but I'd consider it.
Crawdaunt is a bit too frail for my tastes, too, but it seems to go well with your team.