ok

mouse = game.Players.LocalPlayer:GetMouse()
game:GetService("UserInputService").InputBegan:Connect(function(key,gpe)
    if key.KeyCode == Enum.KeyCode.113 then

local FireBall = Instance.new("Part",game.Workspace)
FireBall.Shape = "Ball"
FireBall.CFrame = CFrame.new(game.Players.LocalPlayer.Character.HumanoidRootPart.Position) + Vector3.new(0,0,1)
FireBall.Size = Vector3.new(1,35,1.35,1.35)
FireBall.CanCollide = false
FireBall.BrickColor = BrickColor.new("Persimmon")
local Fire = Instance.new("Fire",FireBall)
local BodyVeclocity = Instance.new("BodyVelocity",FireBall)
BodyVeclocity.MaxForce = Vector3.new(1e8,1e8,1e8)
BodyVeclocity.Velocity = mouse.Hit.lookVector * 50
FireBall.Touched:Connect(function(tch)

    if tch.Parent:FindFirstChild("Humanoid") and tch.Parent.Name ~= game.Players.LocalPlayer.Name then
            FireBall:Destroy()

        tch.Parent:FindFirstChild("Humanoid"):TakeDamage(30)
        end

end)