Leo's main weapon, a medium ranged hit-scan laser, with a clipsize of 10 and medium rate of fire.
Hits against a valid enemy target or neutral bot releases a fan-shaped area of effect damage behind its point of impact. Both the main laser and the AoE have falloff based on the range to the target.
Dealing damage with the main gun charges the alternate fire, which can be set off to heal Leo's entire team, including himself. The rate at which it charges is based on your range, whether or not the shot crits, and how many targets you hit with the AoE component.
Your current charge is indicated by the outer circle around your targeting reticule. At full charge, this circle vanishes and Leo gains a swirling rainbow aura around the Mona Laser on his wrist.