2,000 Pokemon fans swarm D.C., and this 12-year-old is having the time of his life

The tail of the whale is dragging on the convention center floor, and everyone is looking. It is attached to a full-body costume made of blue felt that was carefully measured and velcroed to fit its owner, a 12-year-old boy named Theo Chevis. Theo is hoping to get years of use out of the whale costume, so he ordered it to be a little big. He doesn't mind the way it drags; he has a tournament to think about.