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Dianterra's cavernous shell serves as a home for Carbink, who will, in return, guard the cave's jewels from Sableye and other intruders. Its ability to naturally grow crystals in its shell has made it a highly sought after fusion.

Small Pokémon occasionally gather on its unmoving back to begin building their nests. A sudden transformation of Carbink, its pink, glimmering body is said to be the loveliest sight in the whole world.