Azurill

Azurill is one of the only Pokemon in Little Cup with the ability Huge Power, which doubles its Attack. Azurill's lack of Speed makes it a good Trick Room sweeper. Its Fairy typing provides a resistance to Sucker Punch and Knock Off, two very common moves. Its typing isn't very useful outside of that, however, as it has no Fairy-type STAB move to complement it. It also has a fairly shallow movepool and faces competition from Bunnelby as a Huge Power user, as Bunnelby hits 28 Attack as opposed to Azurill's 24 Attack, and it is much faster. It also requires a lot of support, including teammates that run Trick Room.