BioGrant is the Gym Leader of the Cyllage Gym located in Cyllage City in the Kalos Region. It is a Rock type gym. He is friends with Viola and the two have battled previously at the Battle Chateau. He held the peerage rank of Duke until he defeated Viola to achieve the rank of Grand Duke.
He is an avid climber and loves to climb everything in sight including walls. He particularly likes climbing the wall in the salon at the Battle Chateau and is often seen there.
Before leaving the Battle Chateau, he watched Ash's battle against Tesla and he noticed the momentum that Ash had in the battle. Viola told Grant that Ash has guts and that his passion would get him fired up. Ash wanted to raise his rank to battle Grant but he revealed to Ash after his battle victory against Viola that he was the Gym Leader of the Cyllage Gym. Grant told him that he was looking forward to the day he'd come to challenge him.
Grant's Onix was first seen battling Viola's Surskit at the Battle Chateau. Viola noted that its speed and power has increased since last time they battled. That increase proved to be the difference in the battle as it overwhelmed Viola's Surskit and defeated it. Grant was awarded the title of Grand Duke to which he thanked his Onix for all its hard work and dedicated the victory to it.
Grant's Tyrunt was the second Pokémon that Ash faced in his Gym Battle against Grant.Ash noted after consulting his dex that he and his Pokémon would have to be careful of that huge mouth and those fangs that Grant's Tyrunt has.Bonnie also commented that Grant's Tyrunt looked like a formidable opponent right from the start. [View More]