Leadership is a perk available to all heroes at the beginning of the game. Leadership is not so much an offensive perk as it is a support perk. By choosing it, your minions will do increased damage, and will improve Inspire's effectiveness. Minions will include Battlecruisers, Nexus Exiles, Combat Drones, Dusk Wings, Flaming Bettys, Hellfires, and Gatlings. Since Battlecruisers are buffed, it synergies decently with Air Support. The perk will not affect units from support drop talents.