Pokémon #805 in the National Pokédex, a dual type Rock/Steel Pokémon.
One of the newly introduced Ultra Beasts appearing in the Alola region in Pokemon Ultra Sun and Ultra Moon. Also referred to as UB Assembly (UB: Lay in Japanese). It is made of around 150 stones stacked together, each of them alive.
Japanese name: Tundetunde
Prior Pokémon: Naganadel
Next Pokémon: Blacephalon