[Edited x2]How to make clones of the same part unique?

I have made a script that creates multiple spikes from the ground, and I want to make each one of them individual in the sense that if a spike is touched, that spike gets destroyed. However I cant seem to figure out to do that, when I touch a spike, another spike is destroyed.

game.ReplicatedStorage.EarthStomp.OnServerEvent:Connect(function(player)
local char = game.Players[player.Name].Character
    local hum = char.Humanoid
    local root = char.HumanoidRootPart
    local ar = Instance.new("Part")
    local ten = true
    ar.BrickColor = BrickColor.new("Bright green")
    ar.Anchored = true
    ar.CanCollide = false
    ar.Material = Enum.Material.Neon
    ar.Transparency = 0
    ar.Shape = Enum.PartType.Cylinder
    ar.Size = Vector3.new(0.01,1,1)
    ar.CFrame = player.Character["Left Leg"].CFrame + Vector3.new(0.01,0,0)
    ar.Orientation = Vector3.new(0, 0, 90)
    ar.Parent = workspace
    game.Debris:AddItem(ar,2)
    local tween = game:GetService("TweenService")
    local tweenInfo = TweenInfo.new(1,Enum.EasingStyle.Linear,Enum.EasingDirection.Out,0,false,0)
    local tweenProperty = {Size = Vector3.new(0.01,150,150);Transparency = 1}
    local tweenRun = tween:Create(ar,tweenInfo,tweenProperty)
    tweenRun:Play()
   
    wait(0.5)



function earthspike()
   
    earthspike = game:GetService("ServerStorage").Spike:Clone()
    earthspike.Anchored = true
    earthspike.CanCollide = true
    earthspike.Parent = workspace
    earthspike.CFrame = ar.CFrame * CFrame.new(root.CFrame.X - 4,math.random(-40,40),math.random(-40,40))
    game.Debris:AddItem(earthspike,5)
    local tween = game:GetService("TweenService")
    local tweenInfo2 = TweenInfo.new(0.01,Enum.EasingStyle.Linear,Enum.EasingDirection.Out,0,false,0)
    local tweenProperty2 = {Orientation = Vector3.new(0,0,0)}
    local tweenRun2 = tween:Create(earthspike,tweenInfo2,tweenProperty2)
    tweenRun2:Play()
    
end
for i = 1,30 do
	spawn(earthspike)
end
    earthspike.Touched:connect(function(hit)
    local ehum = hit.Parent:findFirstChild("Humanoid") or hit.Parent.Parent:findFirstChild("Humanoid")
    earthspike.BrickColor = hit.BrickColor
    if not ten then return end
    if ehum and ehum ~= hum then
	ten = false
	ehum:TakeDamage(5)
    earthspike:Destroy()
    wait()
    ten = true
end
end)

end)

Also, error comes up after a couple spikes are spawned Workspace.Moves.EarthStomp:47: attempt to index global 'earthspike' (a function value) After that, the spikes wont spawn anymore

--Line 47
earthspike.Touched:connect(function(hit)