I used to always put a Crawdaunt ex on top of my deck, face up. When I pulled my deck from the box, I would set it on the table so my opponent could see, as I stashed my bag and such beneath my chair.
I would see the Crawdaunt ex and quickly put it into my pocket.
Of course, the Crawdaunt ex wasn't part of my deck. It was just a "lucky card."
You would not believe how many times my opponent would make sure that they put no more than 3 Pokemon on their bench.
I'm not sure why...
LOL. <33
Hrm, as far as bluffing goes there are some real crazy card sharks over here it's not even funny. I always play this lady whose just some poke-mom that everyone loves. Every round she plays she'll go off about how she sucks and how terrible she'll do against you. When the game actually starts she always purposely gives a few prizes off and moan about the terrible cards in her hand, then BOOM! Outta no where she'll break out Scrambles and evolutions outta nowhere and totally dominate everyone she plays.