These Pokémon line the beaches. The sticky mucous that covers their bodies can be used to soothe sunburned skin. How convenient!
– Pokémon Moon Pokédex
Pyukumuku is the only member of its family. In the game, you can earn money by chucking them back into the sea. The story goes that once a Pyukumuku finds a spot on the beach it likes, it will keep going back there, even if all the food is gone, it will starve rather than move. The Alolan people feel sorry for it, so they try to help by chucking them back into the sea.
Its stat spread kinda resemble Shuckle’s, but on a less extreme scale: very high defenses, but low Speed and relatively low attacking stats. Its unique ability Innards Out, deals damage to the opponent that knocked it out equal to the amount of HP it had left before last being hit. It also has a unique move, Purify, which cures a target of a non-volatile status condition and restores the user’s HP up to 50% of its own maximum HP.