Qwilfish deserves a mention in the 'Swift Swimmers' section of the non-ubers. With access to Destiny Bond and Explosion, he's good as a sacrificial way of dealing with many threats, especially with the rain set up. Good physical attack combined with Waterfall and rain can do a fair bit of damage, and he has Toxic Spikes too. Ice Beam also deserves a mention for Rayquaza switch-ins, although it isn't likely to KO him it can hurt him significantly. Yes he won't be outspeeding a lot of things without the rain, and yes he's never likely to survive more than a turn or two.