Taunt is amazing on Tornadus-T, but I find Substitute to be an underrated option. Combined with Life Orb recoil, it may not sound appealing at first. But when you see how you can be protected from Genesect and other Choice Scarfers, and Mamoswine, you start to see why Substitute is a good move. Mamoswine and Genesect, for example, must break its Substitute. In the process, they eat one Hurricane, and are certainly OHKOed. Mamoswine can only survive if it has an intact Focus Sash. Substitute also blocks Thunder Waves that can otherwise nullfill Tornadus-T. I remember the various times that I switched Tornadus-T on enemy Ferrothorn, and then used Substitute. They didn't knew that I would use this, and they wasted a turn trying to paralyze my Tornadus-T. Then, Tornadus-T 2HKOed that Ferrothorn with Hurricane. Until that Substitute was breaked, if it could be breaked, Ferrothorn already died and if Substitute was still intact, Tornadus-T could make the next switch-in eat another Hurricane and then switch-out without losing much health thanks to Regenerator.
I am starting to play Yu-Gi-Oh! again and I am looking for people who can battle alongside me and my friend Roberto, we are trying to learn to play on the Yu-Gi-Oh! metagame, I have a Dark World deck and I want to improve my skills, if anyone of you are Yu-Gi-Oh! players, please contact me on my personal page.