Pack in a few anti-Psychics; Mews and Celebis will be popping up, and probably a few Slowbros. EspyJump will probably fade out of existence now that Mew's a UU... and damn that sucks because I really love Espeon. Mew's Baton Pass versatility means it'll pop up a lot.
EDIT: And Entei CAN be better than Arcanine if you've got the Shiny Gamestop one; Adamant Nature with Flare Blitz and Extremespeed. Slap on a Choice Band or a Life Orb and have fun.
EDIT: And Entei CAN be better than Arcanine if you've got the Shiny Gamestop one; Adamant Nature with Flare Blitz and Extremespeed. Slap on a Choice Band or a Life Orb and have fun.