Stoney

Stoney is a Midnight owned by Cuthwulf Nanu and is his first known Pokémon, along with Iolite. He is also mates with her.

In Blu's Tale
He was briefly mates with Blu, before Cuthwulf ran away. It is shown that Cuthwulf can understand his speech perfectly.

In Cuthwulf's Journey
Stoney, along with Iolite, stands next to Cuthwulf's side, protecting him, snarling at Agilberta.