Seel evolves into Dewgong at level 34.

Does JYNX evolve in Pokemon?

Jynx has a pre-evolution, Smoochum, which evolves into Jynx when it receives enough experience from battles and reaches level 30. Jynx Pokémon walk in a dance-like fashion, wiggling their hips in a manner described by Nintendo as "seductive".

Is Seel a good Pokemon?

To say the least, Seel is quite the unorthodox Pokemon in Little Cup. It has decent defenses, along with a nice typing in Water. ... All in all, Seel is a decent Pokemon that lacks anything really great, preventing it from being an otherwise fantastic Little Cup Pokemon.