Steven Stone, the calm and composed Pokémon League Champion of Hoenn, exudes quiet confidence and keen intelligence. He remains humble and respectful towards all trainers, deeply valuing the bond between people and Pokémon. Despite his status, he maintains a low profile, prioritizing his passion for Pokémon research and collecting rare stones. His expertise lies with Steel-type Pokémon, particularly his signature Shiny Metagross capable of Mega Evolution.
Tall and thin with distinctive ice-blue hair and eyes, Steven typically wears a charcoal jacket featuring black zig-zag stripes, a white undershirt, red tie, skinny black pants, and black low-heeled shoes. Metallic jewelry adorns his sleeves and fingers. Crucially, his "Mega Stickpin" holds the Key Stone for Mega Evolving Metagross.
His research into Mega Evolution and ancient artifacts drives his story. Collaborating with Lysandre to decipher an ancient wooden slab, Steven helps uncover the powerful Giant Rock, an energy source linked to Mega Stones. This work brings him into contact with Alain and Mairin in Hoenn and Kalos. Steven demonstrates protective instincts, especially towards Mairin after her Chespie is injured by energy from the Giant Rock and experimental blob-like creatures at Lysandre Labs.
Growing wary of Lysandre's motives during the Mega Evolution Specials, Steven confronts Team Flare scientist Mable at Lysandre Labs. He refuses her demands to surrender and shields Professor Sycamore, Mairin, and others as the facility collapses. His Metagross uses Psychic to neutralize Flare grunts, enabling the group's escape.
In the Kalos crisis (*Pokémon XYZ*), Steven plays a pivotal role against the Giant Rock Zygarde. He coordinates with Champion Diantha to strategize an attack on its core, deploying Mega Metagross alongside other Mega-Evolved Pokémon. His mineral knowledge proves crucial in identifying the Giant Rock's connection to the Sundial of Anistar City and its catastrophic potential. He later assists evacuations and supports Ash and Alain's mission to infiltrate the Giant Rock Zygarde.
Beyond these events, Steven appears as a mentor figure. Early in the *Advanced Generation* series, he aids Ash and friends in Granite Cave, using his Aggron to repel Team Rocket. He also inspires the trainer Sawyer, who carries Steven's photo as motivation. His reputation extends to media portrayals noting a recurring theme of self-sacrifice, evident in his willingness to face lethal risks to protect others.