Milotic

Very little has changed for Milotic defensively since ADV, but that's not always a good thing. Diamond/Pearl has brought with it new monstrously powerful sweepers such as Nasty Plot Infernape, Dragon Dance Outrage Dragonite and other threats that Milotic simply doesn't have the power to stand up against. Worse yet, Hypnosis's accuracy is now a measly 60%, and with Wish becoming more and more useful, Milotic finds itself commonly overshadowed by Vaporeon.

That being said, Milotic finds itself landing very comfortably in its new niche in Generation 4's UnderUsed tier, where it provides an extremely viable choice as a bulky Water-type and status absorber. Its movepool may not be very large, but it's focused perfectly for its job in UU, where it can stand up against strong threats such as Blaziken, Feraligatr, and Azumarill with ease. With its solid 95/79/125 defenses, access to Recover, and ability to hit back with 100 base Special Attack, Milotic is a great choice for any kind of team in UU.