Destroying a tool that is in hand inside a RemoteEvent?

How do I destroy a tool that is being held in the hand? I have currently done as if the tool is in the backpack it will be destroyed.

ReplicatedStorage.ShopFunctions:WaitForChild("Ninjago").OnServerInvoke = function(player)
	if player.leaderstats.Money.Value >= 500 and MyDebounce == true and player then
		MyDebounce = false
		player.leaderstats.Money.Value = player.leaderstats.Money.Value - 500
		
		
		
		player.Backpack:ClearAllChildren()
		
		ServerStorage.Tools.AzureSword:Clone().Parent = player.Backpack
		
	end
end

If the tool is located in his backpack, this is how you would do it:

What you want to do is first create a function to find the tool. Next, create a function to destroy the tool. Here's how:

local tool = ServerStorage.Tools.AzureSword

local function FindItemFromBackpack(whichItemName, whichPlayer)
	local playerBackpack = whichPlayer.Backpack
	local playerBackpackChilds = playerBackpack:GetChildren()
	
	for _, eachItem in pairs(playerBackpackChilds) do
		if eachItem.Name == whichItemName then
			return eachItem
		end
	end
end

local function DestroyTool(whichTool, whichPlayer)
	-- Look through his backpack
	local toolInBackpack= FindItemFromBackpack(tool.Name, player)
	if toolInBackpack then
		toolInBackpack:Destroy()
		toolInBackpack = nil
	end
end

ReplicatedStorage.ShopFunctions:WaitForChild("Ninjago").OnServerInvoke = function(player)
local myDebounce = true
    if player.leaderstats.Money.Value >= 500 and MyDebounce == true and player then
        MyDebounce = false
        player.leaderstats.Money.Value = player.leaderstats.Money.Value - 500

        DestroyTool(tool, player)
    end
end

If it's located in his character then you would look through his character and not his backpack. If you want to make sure it's neither in his backpack nor his character then you would look at both of them and destroy the both. Here's how:

local tool = ServerStorage.Tools.AzureSword

local function FindItemFromBackpack(whichItemName, whichPlayer)
	local playerBackpack = whichPlayer.Backpack
	local playerBackpackChilds = playerBackpack:GetChildren()
	
	for _, eachItem in pairs(playerBackpackChilds) do
		if eachItem.Name == whichItemName then
			return eachItem
		end
	end
end

local function FindItemFromCharacter(whichItemName, whichPlayer)
	local charItems = whichPlayer.Character:GetChildren()
	
	for _, eachItem in pairs(charItems) do
		if eachItem.Name == whichItemName then
			return eachItem
		end
	end
end

local function DestroyTool(whichTool, whichPlayer)
	-- Look through his backpack
	local toolInBackpack= FindItemFromBackpack(tool.Name, player)
	if toolInBackpack then
		toolInBackpack:Destroy()
		toolInBackpack = nil
	end
	-- Look through his character
	local toolInChar = FindItemFromCharacter(tool.Name, player)
	if toolInChar then
		toolInChar:Destroy()
		toolInChar = nil
	end
end

ReplicatedStorage.ShopFunctions:WaitForChild("Ninjago").OnServerInvoke = function(player)
local myDebounce = true
    if player.leaderstats.Money.Value >= 500 and MyDebounce == true and player then
        MyDebounce = false
        player.leaderstats.Money.Value = player.leaderstats.Money.Value - 500

        DestroyTool(tool, player)
    end
end

Let me know how it goes.

Tools that are being hold are in the player's character, so u can do

if player.Character:FindFirstChildOfClass("Tool") then 

	player.Character:FindFirstChildOfClass("Tool"):Destroy()

end