Leo doesn't utilizes mana, instead his secondary bar utilizes ammunition. Leo has a total of 8 cannonball he can store in his ammunition bar.
If Leo has at least one cannonball available, his abilities will be modified.
Ever Ready!:Leo recharges one cannonball if he stood still for 1 second without acting or being acted upon. The passive will be disabled if he is in combat, he is moving or his ammunition bar is already full.
Passive: If Leo has at least one cannonball at his disposal, he is granted a unique range indicator. At 700 unit range, Leo fires one cannonball, dealing splash physical damage plus 10% of maximum health. If the targeted enemy unit is within his melee range, The passive will deactivate and he will do basic attack instead.
Active:Leo reloads one cannonball. This ability is deactivated once his ammunition bar is full.
Force Reload is a self-targeted buff that empowers his basic attacks.
Passive - Mindblown: Whenever Leo scores the killing blow, 2 cannonballs will be refunded. The passive is disabled if his ammunition bar is full.
active:Leo slams his cannon on the ground, dealing physical damage and slows nearby enemy unit for 0.5 seconds. If Leo has at least 1 cannonball at his disposal, the damage will be enhanced but the slow is disabled.