You can check on the official Pokemon Website were different events are being held. It might be worth practicing at a few locals or cities first before going straight into Regionals.
I dislike the Greninja one, I know all breaks look golden but he looks like he's been dipped in it and left to harden. I do like the Luxray one though
I am going to win because i luv the card game and i am a serious player.I'm not going with the intention to win, just to get the playmat and participate a little and try to get back into it.