Why does damage keeps stacking up?

local function Harm(Target)
    if Target.Parent:FindFirstChild("Humanoid") and Target.Parent.Name ~= Player.Name and Debounce == true and Anima.IsPlaying == true then

                Debounce = false
            Target.Parent.Humanoid:TakeDamage(Damage)

        end
    end
Player.Character.Sword.Blade.Touched:connect(Harm)

I have that piece of code that won't let the player get damaged unless the animation is playing but each time I click and the blade doesn't hit anyone the damage stacks up, for example the default damage is 200 but if I click twice without hitting someone it'll be 400 and so on, how can I fix this?