FusionDex

To use the water stored inside its tail, Azunaw must stand on top of it, using its own weight to squeeze the liquid out. Because the tail is so bouncy and slippery, the Pokémon is perpetually terrified of losing its footing and tumbling off.

Once its jaws clamp down on its foe, it will absolutely not let go. Its tail, which is packed with nutrition, is very bouncy like a rubber ball.