Wailord needs entry hazards set up on the opponent's side of the field to be effective, as foes can switch around without much trouble otherwise, limiting its PP stalling abilities. Don't be afraid to use Wailord's natural bulk to switch in on threats it can wall, such as Torkoal.
A pony is not a small horse. Horses and ponies are genetically two different species. There are horse-sized ponies, and pony-sized horses, but the genetics are what tells them apart, not the size. A miniature horse, for example, is very small and looks like a pony, but genetically, it is a horse.
Pony of the Americas. The Pony of the Americas (POA) is a pony breed developed in the state of Iowa in the United States. The foundation stallion was an Arabian/Appaloosa/Shetland pony cross. A breed registry was founded in 1954, and within 15 years had registered 12,500 ponies. Today, the Pony of the Americas Club is one of the largest and most active youth-oriented horse breed registries in the US.