Tentacruel

Tentacruel is the epitome of the word ''utility,'' as it can lay down Toxic Spikes, absorb them, use Rapid Spin to remove entry hazards, and more. Tentacruel also has Rain Dish, an amazing ability that gradually heals Tentacruel in the rain, making it a perfect candidate for rain stall teams. In addition, Tentacruel is surprisingly fast for a defensive Pokemon—with a base 100 Speed stat, it can outspeed Pokemon such as Adamant Breloom. As if that wasn't enough, Tentacruel has little to fear from the dreaded Chandelure (except for the occasional Hidden Power Ground), unlike most other walls. That being said, though, Tentacruel easily falls prey to hard-hitting physical attackers. Tentacruel is also not immune to powerful special attackers, particularly Latios and Manaphy, both of which are major threats to rain teams. If you can keep these threats at bay, though, Tentacruel will serve your team well.