Tentacruel

Tentacruel finds its niche as a utility Pokemon on rain teams. Thanks to its good typing, decent stats, and fantastic ability in Rain Dish, Tentacruel is nearly impossible to KO in rain and can check the Pokemon it is supposed to throughout long matches while providing Rapid Spin support and spreading status. Tentacruel's access to Rapid Spin allows it to support Pokemon that are weak to Stealth Rock such as Tornadus, Thundurus-T, and Volcarona as well as any grounded Pokemon that gets worn down quickly by Spikes. In addition, it does not even have to spin to remove Toxic Spikes. However, Tentacruel's reliance on Black Sludge and Rain Dish for recovery leaves it vulnerable to residual damage, as a burn from Keldeo's Scald or Knock Off from Ferrothorn will leave it far more easy to wear down with entry hazards and U-turn. In addition, when sand is up, Tentacruel has a net recovery of zero per turn. It also is very reliant on Scald to threaten switch-ins and is very passive without it. However, on the right team, Tentacruel's support capabilities make it a great choice.