I like much more playing 3 Mewtwo and focus more on them rather then playing 4 Tornadus. Like baby mario said, I'm not that concerned about starting with Mewtwo, because i run many switch and with DCE I can just start putting pressure early on. I've won games because i took 1/2 prizes with Mewtwo, then they kill my mewtwo, I revenge, they revenge, and they think the game is pretty much over, and this is when the hird mewtwo does his job, revenging my last mewtwo, either winning the game or just put my opponent in a spot where they can't do anything and I end up winning. I think I might also play 3 Mewtwo in eels for the same reason.