Leo is one of the members of the new Zodiac team, a group of ambitious people who wanted to conquer the World. Leo wears a special suit supplied by Thanos that enables him to assume the form of a humanoid lion and gives him super-powers. Thanos wanted the Zodiac team to steal different powerful items and take them out from Earth in order to bring balance to the planet and the cosmos. He was one of the Zodiac members who attacked the Helicarrier in order to retrieve an Ultimate Nullifier, while battling the Hulk, he suffered a heart attack and died, the energy of his suit passed through Iron Man's armor, which helped him to known where Zodiac had their powers from and shut them down.