Why Isn't my sword not giving kills, and also why Isn't not going phases?

I am making a sword similar to a glove from Slap Battles called "Killstreak", the more kills you get the more stronger you are, I made a sword script that each time you get a kill, the IntValue (Which Is called "Kills") are raised by 1, but as the title says, It doesn't change, also when I reach a certain phase like Phase 1 which I get a small boost, It doesn't apply

Main script (Sword, Server-Sided):

local Tool = script.Parent
local SoundFolder = Tool.Sounds
local SlashAttack
local KillsValue = Tool.Kills ---This Is a IntValue
local Boolens = {
	Debounce = false,
	CanDamage = false
}
local Animations = {
	EquipAnimation = Tool.EquipAnimation,
	Idle = Tool.Idle,
	Slash = Tool.Slash,
}

Tool.Equipped:Connect(function()
	SoundFolder.Unsheath:Play()
	local Humanoid = Tool.Parent.Humanoid
	
	local EquipAnimationTrack = Humanoid:FindFirstChild("Animator"):LoadAnimation(Animations.EquipAnimation)
	EquipAnimationTrack:Play()
	task.wait(0.30)
	local Idle = Humanoid:FindFirstChild("Animator"):LoadAnimation(Animations.Idle)
	Idle:Play()
	Tool.Unequipped:Connect(function()
		Idle:Stop()
	end)
end)

Tool.Activated:Connect(function()
	if not Boolens.Debounce then
		Boolens.Debounce = true
		Boolens.CanDamage = true
		SoundFolder.Slash:Play()
		print("The tool has been clicked")
		local Humanoid = Tool.Parent.Humanoid

		SlashAttack = Humanoid:FindFirstChild("Animator"):LoadAnimation(Animations.Slash)
		SlashAttack:Play()
		task.wait(0.5)
		Boolens.CanDamage = false
		wait(1)
		Boolens.Debounce = false
	end
end)

Tool.Handle.Touched:Connect(function(hit)
	local Player = game:GetService("Players"):GetPlayerFromCharacter(hit.Parent)
	if Player then
		local player1 = game.Players:GetPlayerFromCharacter(Tool.Parent)
		local player2 = game.Players:GetPlayerFromCharacter(hit.Parent)

		if (player1 ~= nil) and (player2 ~= nil) then
			local humanoid = (player2.Character or player2.CharacterAdded:Wait()):FindFirstChildWhichIsA("Humanoid")

			if (player1.TeamColor ~= player2.TeamColor) then
				if (humanoid ~= nil) and Boolens.CanDamage == true then
					Boolens.CanDamage = false
					humanoid:TakeDamage(30)
					if humanoid.Health == 0 then
						SoundFolder["Kill Get"]:Play()
						KillsValue.Value = KillsValue.Value + 1
					end
				end
			end
		end
	else
		local NPCHumanoid = hit.Parent:WaitForChild("Humanoid")
		if NPCHumanoid and Boolens.CanDamage == true then
			Boolens.CanDamage = false
			NPCHumanoid:TakeDamage(30)
			if NPCHumanoid.Health == 0 then
				SoundFolder["Kill Get"]:Play()
				KillsValue.Value = KillsValue.Value + 1
			end
		end
	end
end)

Phase script (Inside the IntValue, Server Sided):

local Tool = script.Parent.Parent.Parent
local IntValue = script.Parent

if IntValue.Value == 3 then
	Tool.Parent.Humanoid.WalkSpeed = 18
end

if IntValue.Value == 5 then
	Tool.Parent.Humanoid.WalkSpeed = 20
	local ThemeSong = Instance.new("Sound")
	ThemeSong.Name = "ThemeSong"
	ThemeSong.Parent = Tool.Parent.Torso
	ThemeSong.Looped = true
	ThemeSong.Volume = 3
	ThemeSong.SoundId = "rbxassetid://10239133106"
	ThemeSong:Play()
end

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