Alakazam in Dpp: Throughout the whole generation it's been a great pokemon offensively, it started in OU and would abuse it's huge special attack with either a Life Orb or Choice Specs. Psychic, Focus Blast and Signal Beam were staples, while the forth move changed a lot. It had a little fun with a Choice Scarf, during the speed + Scarf obsessed era. The introduction of physical Pursuit and it's new found rival Azelf (who had better defences, levitate and Nasty Plot) troubled Alakazam and once Scizor was introduced, Alakazam just disappeared, it was a very hard pokemon to bring into the game due to poor typing and almost not existent defences and when Scizor became so popular and could so easily force it out, it became pointless to use. It was theorized to destroy UU once it dropped down, but everyone forgot how popular priority moves (mainly the move succer punch) were in this metagame. It was also easy to revenge with any scarfed user and Chansey/Registeel's popularity also kept Alakazam in check. It still remains a great choice for UU and is probably the most powerful special sweeper in the tier.