Gimkit WeaponZapper(14 damage but fast. This is definately not a answer) Blaster(20 damage with speed)Wooden Wand(20 damage with a bit of speed)Evil Eye(75 damge with slow speed and low charge)See All Options
Write-in answer: THE SNOWBALL CANNON! Fastest speed of all weapons, at least 14-20 shots without a reload/refill, and decent damage.