Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Hey, I'm gonna change my name to Gunman because I was listening to that just then. I was going to change it to Blackheart in honour of the worst film ever, but thought better of it.
Actually that is not a bad Battle Tower Team.
TTar cover Ghost, Dark weakness on Rotom. Rotom covers Electric weakness and fighting weakness of Gyara and TTar respectively and Gyara covers ground and fighting TTar weaknesses.