Shardrago

Black +2: It warms its body by absorbing sunlight with its wings. When its body temperature falls, it can no longer move.

White +2: It races through narrow caves, using its sharp claws to catch prey. The skin on its face is harder than a rock.

Black 2 / White 2: It runs through the narrow tunnels formed by Excadrill and Onix. It uses its sharp claws to catch prey.

Ultra Sun: The red skin on its face is harder than rock. In narrow caves, it squares off against its enemies and charges face-first right into them.

Ultra Moon: It infiltrates tunnels that Pokémon like Diglett and Dugtrio have dug and quietly waits for prey to pass through.

Sword: Druddigon lives in caves, but it never skips sunbathing—it won’t be able to move if its body gets too cold.

Shield: Druddigon are vicious and cunning. They take up residence in nests dug out by other Pokémon, treating the stolen nests as their own lairs.