Fake Out/Follow Me
hurp
Yeah trick room is going to be near impossible to deal with in the vgc seeing as taunt was it's main counter.
Being a TR veteran, I know of one thing that COMPLETELY screws over Trick Room, and it should be horribly obvious. Taunt never was too much trouble, depending on the player Taunting, but I think it would be a HUGE stretch say its the
main counter. In fact, 90% of the time, I can successfully set up Trick Room with a Taunter on the other side of the field, and actually enjoyed it because that was less damage I'm taking for the first turn, and so what if my Togekiss can't use Follow Me? I'm just going to use Air Slash and incapacitate a Pokemon while I begin to carry out my setup. Even in gen V, you can't break me with Fake Out+Taunt, because I can just Protect first turn, Anger Powder the next, and have a field day with the rest of your team. Mental Herb just helps me get down to business faster.
Unless of course, if you have that one move. But are you going to take your chances with it? Are you going to waste a move slot that could've been used for Helping hand? Fuck yes you are, because I'm coming to rape you in your sleep if you don't. Let that one move be your shotgun, but be careful with it; you may pull the trigger and find yourself in your own crosshairs.