Key Stone/Manga/ORAS

,, and acquired Mega Bracelets from Ultima and  in preparation for another disaster coming to Hoenn. In Omega Alpha Adventure 2, Ruby successfully used his Mega Bracelet and 's Latiosite to Mega Evolve the Eon Pokémon and soar with it to the Sky Pillar.

Many members of the Draconid people possess Key Stones, such as Zinnia, Renza, Jinga, Tomatoma, and the Meteor Village Elder. While Zinnia keeps her Key Stone in her Mega Anklet, Renza, Jinga, and Tomatoma keep theirs in arm bands, similar to Zinnia's anklet, while the Elder keeps hers in a walking cane. When battling Ruby and Sapphire, Zinnia wears a second Mega Anklet that originally belonged to Aster.

In Omega Alpha Adventure 6, Mega Evolved his  into Mega Metagross with his Mega Stickpin. In PAORAS20, he reveals that he is a Mega Evolution successor, having obtained the Key Stone from Gurkinn. He later gives Zinnia a jar of Key Stones belonging to Aster that were taken from the Embedded Tower.

In Omega Alpha Adventure 11, Maxie and Archie use their Mega Glasses and Mega Anchor to Mega Evolve their and  respectively. After Maxie and Archie disappeared from exhausting the energy keeping their bodies stable, Blaise and took their Key Stones and Mega-Evolving Pokémon.

When battling against Maxie and Archie, and  use rings with patterns similar to the Mega Bracelets to Mega Evolve Saur and Blasty respectively to battle them. Though their rings resemble the one owned by Blue, it is unknown where they received them.

In Omega Alpha Adventure 20, reveals he has a Key Stone placed in the "R" of his chest pocket. With it, he can Mega Evolve his.