[Answered] Attack does no damage on touch?

I made this code and it does no damage it only does damage really up close but the attack grows out like an explosion also the part is a mesh inside a part but i don't understand why it only takes damage up close the part grows too.

local Explosion = game.Lighting.ExplosionEffect:Clone()
Explosion.Parent = game.Workspace
Explosion.Position = player.Character.UpperTorso.Position
Explosion.Anchored = true
script.Explosion:Play()
local hum = player.Character.Humanoid
local damaged = true

Explosion.Touched:Connect(function(hit)
	if not damaged then return end
	damaged = false
	local ehum = hit.Parent:FindFirstChild("Humanoid") or hit.Parent.Parent:FindFirstChild("Humanoid")
    if ehum and ehum ~= hum  then
	ehum:TakeDamage(40)
	wait(5)
    end    
	
	damaged = true
	
	
end)

for i=1, 20 do

Explosion.Size = Explosion.Size + Vector3.new(2,2,2)

wait()


end

Explosion:Remove()