Here's a new one and my favourite pokemon, Poliwhirl!
Poliwhirl @ Eviolite
Ability: Water Absorb/Swift Swim
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
-Waterfall
-Return
-Belly Drum
-Hypnosis
Looking at Poliwhirl you wouldn't expect much, but this set which I used for some time can pack a...