Slugma are fiery Pokémon that appear to consist entirely of magma. They resemble slugs, with a pair of bright yellow eyes on short stalks and a small mouth. The magma inside its body acts as a circulatory system, transferring vital nutrients and oxygen throughout their bodies.
As a Fire-type Pokémon composed of magma, Slugma is proficient at using attacks such as Lava Plume and Flamethrower.
Slugma have to keep moving in order to keep warm; if they stopped moving, the magma would cool and become rock, which would eventually break off and reduce this Pokémon's size. For this reason, they never sleep.
Naturally, Slugma prefer warmer regions where they can keep their magma hot, so they are often found in volcanic regions.
It is not known what these Pokémon eat, but they presumably consume soil and rocks to both keep the volume of their magma and collect vital nutrients for their bodies.
This Pokémon was unavailable prior to Generation I.