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Swampert is a bipedal Pokémon. It has a large cobalt blue body and large three-fingered hands. It has two orange gills that protrude from round patches on its cheeks. Its head has two large semicircular black fins that extend from the top of its orange eyes to the back of its head. Its tail fin is big, broad, and black. It has a white underside and orange ridged portions above its hands and three-toed feet.
Swampert is very strong with enough power to easily drag a boulder weighing more than a ton, batter down opponents, and swim faster than a jet ski. It has powerful vision, enabling it to see even in murky water. Swampert also has the ability to predict storms, sensing subtle differences in the sounds of waves and tidal winds with its fins. When a storm is approaching, Swampert will pile up boulders to protect its nest. As its former signature move, Muddy Water is another special capability of this Pokémon. It makes its nests on beautiful beaches.