Leohart is a Zoomorph-SaberZodiac mutant representing the zodiac sign, Leo. It was sold (3,500 Gold) in the shop during July to August. As with all Zodiac mutants, Leohart is not upgradeable. It was also given away in the Mutant Slots as a prize for a limited time.
Leohart is an anthropomorphic lion clad in blue armor that wields a gigantic hammer. The Leo insignia is found on its chest.