Seel

To say the least, Seel is quite the unorthodox Pokemon in Little Cup. It has decent defenses, along with a nice typing in Water. However, it lacks an instant recovery move, so it cannot be as bulky as other Water-types such as Slowpoke. It also has plenty of priority attacks to mitigate its mediocre Speed, though it doesn't have the attacking stats to make the most of said priority attacks. Finally, it has a decent support movepool as well, but the lack of Speed and instant recovery prevents it from being a better Pokemon in that regard. All in all, Seel is a decent Pokemon that lacks anything really great, preventing it from being an otherwise fantastic Little Cup Pokemon.