How to pass variable(parameter) from localscript to server script using remoteEvent?

Here is my localscript

player = game.Players.LocalPlayer

function addChar()
	wait(0.1)
	player.Character.Humanoid.MaxHealth = player.Character.Humanoid.MaxHealth+(2*Str)+(4*Vit)
	player.Character.Humanoid.Health = player.Character.Humanoid.MaxHealth
	script.Parent.Parent.Information.HP.Text = "HP: " .. tostring(player.Character.Humanoid.MaxHealth)
	script.Parent.Parent.Information.MP.Text = "MP: " .. tostring((player.Stats.Intelligence.Value*4)+100)
	script.Parent.Parent.Information.ATKSpeed.Text = "ATKSpeed: " .. tostring(Speed)
	script.Parent.Parent.Information.ATKDMG.Text = "ATKDMG: " .. tostring(Damage)
	script.Parent.Parent.Information.Stamina.Text = "Stamina: " .. tostring(player.PlayerGui.mainUI.statHolder.staminaHolder.staminaBar.MaxStamina.Value)
	script.Parent.Parent.Information.CRITCHANCE.Text = "Critical %: " .. tostring(Critical) .. "%"
	script.Parent.Parent.Information.CRITDMG.Text = "Critical DMG: " .. tostring(CriticalDamage)
	script.Parent.Parent.Information.Evasion.Text = "Evasion%: " .. tostring(player.Stats.Dexterity.Value/5) .. "%"
	script.Parent.Parent.Information.SprintSpeed.Text = "Sprint Speed: " .. tostring(player.Stats.Agility.Value+26)
end

player.CharacterAdded:Connect(function()
	game.ReplicatedStorage.RemoteEvents.CharacterAdded:FireServer(player)
end)
player.Equip.ChildAdded:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Strength")
end)
player.Equip.ChildRemoved:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Strength")
end)
player.Stats.Strength.Changed:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Strength")
end)
player.Stats.Agility.Changed:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Agility")
end)
player.Stats.Intelligence.Changed:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Intelligence")
end)
player.Stats.Defense.Changed:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Defense")
end)
player.Stats.Vitality.Changed:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Vitality")
end)
player.Stats.Dexterity.Changed:Connect(function()
	game.ReplicatedStorage.RemoteEvents.StatChange:FireServer(player, "Dexterity")
end)

my server script:

game.ReplicatedStorage.RemoteEvents.StatChange.OnServerEvent:connect(
function(player, x)
	wait(0.03)
	print(x)
	local Str = player.Stats.Strength.Value
	local Agi = player.Stats.Agility.Value
	local Int = player.Stats.Intelligence.Value
	local Def = player.Stats.Defense.Value
	local Vit = player.Stats.Vitality.Value
	local Dex = player.Stats.Dexterity.Value
	local Damage = 0
	local Speed = 0
	local Critical = 0
	local CriticalDamage = 0
	local weapon
	
	for j,k in pairs(player.Equip:GetChildren()) do
		if k.itemType.Value == "Weapon" then
			Damage = k.itemDamage.Value
			Speed = k.itemSpeed.Value
			Critical = k.itemCritical.Value
			CriticalDamage = k.itemCritDamage.Value
			weapon = k
			player.PlayerGui.statsGUI.Main.Information.ATKDMG.Text = "ATKDMG: " .. tostring(Damage)
			player.PlayerGui.statsGUI.Main.Information.CRITCHANCE.Text = "Critical %: " .. tostring(Critical) .. "%"
			player.PlayerGui.statsGUI.Main.Information.CRITDMG.Text = "Critical DMG: " .. tostring(CriticalDamage)
		end
	end
	
	if weapon == nil then
		Damage = 0
		Speed = 0
		Critical = 0
		CriticalDamage = 0
		player.PlayerGui.statsGUI.Main.Information.ATKDMG.Text = "ATKDMG: " .. tostring(Damage)
	end

		--Health--
	if x == "Strength" then
		player.Character.Humanoid.MaxHealth = player.Character.Humanoid.MaxHealth+2
		player.PlayerGui.statsGUI.Main.Information.HP.Text = "HP: " .. tostring(player.Character.Humanoid.MaxHealth)
		player.PlayerGui.statsGUI.Main.Information.ATKDMG.Text = "ATKDMG: " .. tostring(Damage)
	end
	print("Lmao")
	if x == "Agility" then
		player.PlayerGui.statsGUI.Main.Information.ATKSpeed.Text = "ATKSpeed: " .. tostring(Speed)
		player.PlayerGui.statsGUI.Main.Information.SprintSpeed.Text = "Sprint Speed: " .. tostring(player.Stats.Agility.Value+26)
	end
	if x == "Intelligence" then
		player.PlayerGui.statsGUI.Main.Information.MP.Text = "MP: " .. tostring((player.Stats.Intelligence.Value*4)+100)
	end
	if x == "Defense" then
		player.PlayerGui.statsGUI.Main.Information.damageResistance.Text = "DMG Resist%: " .. tostring(player.Stats.Defense.Value/5) .. "%"
	end
	if x == "Vitality" then
		player.Character.Humanoid.MaxHealth = player.Character.Humanoid.MaxHealth+4
		player.PlayerGui.statsGUI.Main.Information.HP.Text = "HP: " .. tostring(player.Character.Humanoid.MaxHealth)
		player.PlayerGui.statsGUI.Main.Information.Stamina.Text = "Stamina: " .. tostring(player.PlayerGui.mainUI.statHolder.staminaHolder.staminaBar.MaxStamina.Value)
	end
	if x == "Dexterity" then
		player.PlayerGui.statsGUI.Main.Information.CRITCHANCE.Text = "Critical %: " .. tostring(Critical) .. "%"
		player.PlayerGui.statsGUI.Main.Information.CRITDMG.Text = "Critical DMG: " .. tostring(CriticalDamage)
		player.PlayerGui.statsGUI.Main.Information.Evasion.Text = "Evasion%: " .. tostring(player.Stats.Dexterity.Value/5) .. "%"
	end
end)

it prints x as my player name?