How can I fix the position of the orb?

Hello!

As the title says, I am making an attack where an orb spawns on the right arm of the character which Is moved a bit In the Y-Axis (The orb goes down) and the user smashes the orb Into the ground

The problem Is that the position of the orb gets glitched

Script:

local Tool = script.Parent
local Debounce = false

Tool.Activated:Connect(function()
	if not Debounce then
		Debounce = true
		game:GetService("Chat"):Chat(Tool.Parent.Head,"Its time to wish you a very happy birthday Haha!",Enum.ChatColor.White)
		Tool.Parent.HumanoidRootPart.Anchored = true
		Tool.Parent.Voiceline:Play()
		Tool.Summon:Play()
		local SorrowBall = game:GetService("ReplicatedStorage").Stuff["Sorrow Ball"]:Clone()
		local Weld = Instance.new("WeldConstraint",SorrowBall)
		game:GetService("Debris"):AddItem(Weld,1.20)
		SorrowBall.Parent = game.Workspace
		SorrowBall.Position = Tool.Parent["Right Arm"].Position
		SorrowBall.Orientation = Tool.Parent["Right Arm"].Orientation
		SorrowBall.CFrame = CFrame.new(0,-3,0)
		SorrowBall.CanCollide = false
		SorrowBall.Anchored = false
		Weld.Part0 = SorrowBall
		Weld.Part1 = Tool.Parent["Right Arm"]
		local AnimationTrack = Tool.Parent.Humanoid:FindFirstChild("Animator"):LoadAnimation(Tool.Animation)
		AnimationTrack:Play()
		wait(1.20)
		SorrowBall.Anchored = true
		Tool.Explosion:Play()
		game:GetService("Debris"):AddItem(SorrowBall,3)
		wait(1)
		Tool.Parent.HumanoidRootPart.Anchored = false
		Debounce = false
	end
end)

Edit: If you want to make the orb move from the arms position relative to world space do something like this:

sorrowBall.Position = arm.Position + Vector3.new(0,-3,0)

You are moving the Orb to the Position 0,-3,0 in workspace and not that amount from the arm.

To move the Orb relative to the arm and keep it straight do something like

--Replace Arm with the arm in your script
sorrowBall.CFrame = arm.CFrame * CFrame.new(Vector3.new(0,-3,0)) * arm.CFrame.Rotation

If you do not care that the Orb is upright, you can remove Arm.CFrame.Rotation

What this code (or math) basically does is get the CFrame position and rotation from the arm and add values to it.

If you want to add rotation relative to your Arm do (Example: 10° all ways)

sorrowBall.CFrame = arm.CFrame * CFrame.new(Vector3.new(0,-3,0)) * CFrame.Angles(Vector3.new(math.rad(10),math.rad(10),math.rad(10)))