Poliwag

Poliwag (Japanese: ニョロモ Nyoromo) is a -type Pokémon introduced in Generation I.

Anatomy
It is so soft its organs are actually visible. It also has trouble walking on its feet due to its lack of arms which causes it to be unbalanced. The swirl on its belly is its internal organs showing through.

Natural abilities
Poliwag will have one of two abilities; either Damp where the foe is unable to use Self-Destruct or Explosion, or Water Absorb where attacks heal 1/4 of Poliwag's health. With its light blue tail, it can swim very fast. It learns attacks such Bubble and Bubble Beam, and that is why it has a small mouth.

Evolution
Poliwag evolves into Poliwhirl at level 25, which can then either evolve into Poliwrath by Water Stone, or Politoed by trade while holding a King's Rock.

Leveling
Generation VI=

Generation V=

Generation IV=

Generation III=

Generation II=

Generation I=

Anime


Misty caught a Poliwag in Orange Islands.

Trivia

 * Poliwag is Satoshi Tajiri's favorite Pokémon, as confirmed in an interview on the TV show GameCenter CX in 2004.
 * Poliwag shares the same in-game cry/sound with Ditto's.
 * Poliwag shares the same species name with Tympole, they're both known has the Tadpole Pokémon.

Etymology
Poliwag's name comes from "polliwog", an alternate word for "tadpole".