Arbok

Arbok's unassuming stats belie one of the most interesting setup Pokemon in PU. Coil elevates Arbok to a surprisingly hard-hitting wallbreaker that can be difficult to deal with. Arbok has two great abilities; Intimidate gives it plenty of opportunities to set up, while Shed Skin grants it longevity. A useful Poison typing allows Arbok to set up on certain would-be threats like Vileplume and Close Combat Monferno. Arbok can also utilize a Choice Scarf to become a revenge killer with interesting utility in the form of Switcheroo while bluffing the much more common Coil set. Arbok's stats do keep it down however, as without a Coil boost or Choice Scarf, it can be underwhelming both offensively and defensively.