Help fix dash script simple

[RelievedMixer21 (iDevX4You)]

local UIS = game:GetService(“UserInputService”)
local char = script.Parent
local dasheffect = game.ReplicatedStorage.dasheffect

local slideAnim = Instance.new(“Animation”)
slideAnim.AnimationId = “rbxassetid://15109376531” – Enter your AnimtionID

local keybind = Enum.KeyCode.Q – between the key for ability
local canslide = true

UIS.InputBegan:Connect(function(input,gameprocessed)
if gameprocessed then return end
if not canslide then return end

if input.KeyCode == keybind then
	canslide = false
	
	local playAnim = char.Humanoid:LoadAnimation(slideAnim)
	playAnim:Play()
	local dash3 = dasheffect:Clone()
	
	dash3.Parent = game.Workspace
	dash3.Position = 
	
	
	local slide = Instance.new("BodyVelocity")
	slide.MaxForce = Vector3.new(1,0,1) * 30000
	slide.Velocity = char.HumanoidRootPart.CFrame.lookVector * 200
	slide.Parent = char.HumanoidRootPart
	
	for count = 1, 8 do
		wait(0.05)
		slide.Velocity*= 0.7
	end
	playAnim:Stop()
	slide:Destroy()
	dash3:Destroy()
	canslide = true
end

end)

how i get it to go behind my back dash3 is the effect

[labra_doodle12]

I think that you could try putting the dash effect’s CFrame to the players Torso.