Mewtrick is the name of the deck used by Jason Klaczynski, the Fifteen and Over Champion in the 2006 World Championships. As its name suggests, the deck revolves around exploiting the abilities of both Mew ex and Manectric ex.
Mewtrick is one of the four 2006 World Championships Decks, released on October 31st, 2006. Each deck comes packaged with a 2006 World Championships Booklet. Each card features a silver border, Klaczynski's signature, and limited edition 2006 World Championships back. None of the cards are tournament legal.
Jason Klaczynski took top honors in the 15 and up age category with his Mewtrick deck. Between Manectric ex's Disconnect attack controlling how often the opponent could play Trainer cards and Mew ex's ability to copy any attack in play, this deck captured the title!