Masquerain

Masquerain looks like yet another generic Bug- and Flying-type Pokemon, but it has a few tricks up its sleeve that might surprise you. It distinguishes itself from other Pokemon with identical typing by its somewhat superior special movepool, which includes two attacks that are more commonly seen on Water-types--Hydro Pump and Ice Beam--as well as an excellent ability in Intimidate. Intimidate is very helpful, since it allows Masquerain to switch into a slew of physical moves that it wouldn't be able to handle otherwise, despite Masquerain's poor defenses. Hydro Pump and Air Slash together hit every Pokemon in UU neutrally except for Lanturn.

Unfortunately, Masquerain is still a mediocre Pokemon, as its horrendous typing and stats hold it back from doing much at all. Being 4x weak to Stealth Rock hinders the usefulness of Intimidate, while its low Speed and Special Attack make its excellent two-move coverage in Hydro Pump and Air Slash not as great as it could be. All in all, Masquerain is a fairly unique Pokemon that, despite horrible, crippling flaws, can be quite useful to your team through proper support.