How do I get mouse on a server script?

This is my script. I want it to only damage once for a certain amount of time, also play an animation on click. However, in pvp, it needs to be in server script for it to reflect to players, how would I get the mouse1input? Script:

--need to add animation and cooldown--
damage = script.Parent.itemDamage.Value
sword = script.Parent.Handle
Tool = script.Parent

function getPlayerDamage(humanoid, vPlayer, enemyPlayer) -- gets the damage to the player in pvp in relation to stats
	local hitChance = math.random(1,500)
	if hitChance > (500-enemyPlayer.Stats.Dexterity.Value) then -- hits or misses based on evasion
		local firstDamage = damage*(1+(vPlayer.Stats.Strength.Value/100))
		local damageReduction = (firstDamage)*(enemyPlayer.Stats.Defense.Value/500)
		local finalDamage = firstDamage - damageReduction
		humanoid:TakeDamage(finalDamage)
	else
		print("missed")
	end
end

function blow(hit)
	if hit.Parent:findFirstChild("Monster") then
		local humanoid = hit.Parent:findFirstChild("Monster")
		local vCharacter = Tool.Parent
		local vPlayer = game.Players:playerFromCharacter(vCharacter)
		local hum = vCharacter:findFirstChild("Humanoid") -- non-nil if tool held by a character
		if humanoid~=nil and humanoid ~= hum and hum ~= nil then
			print("SWORD HIT MONSTER")
			tagHumanoid(humanoid, vPlayer)
			humanoid:TakeDamage(damage)
			wait(1)
			untagHumanoid(humanoid)
		end
	elseif hit.Parent:findFirstChild("Humanoid") then
		local humanoid = hit.Parent:findFirstChild("Humanoid") -- Attacked player's humanoid
		local vCharacter = Tool.Parent
		local vPlayer = game.Players:playerFromCharacter(vCharacter) -- Attacking player
		local enemyCharacter = humanoid.Parent
		local enemyPlayer = game.Players:playerFromCharacter(enemyCharacter) -- Enemy player
		local hum = vCharacter:findFirstChild("Humanoid") -- Attacking player's humanoid
		if humanoid~=nil and humanoid ~= hum and hum ~= nil then
			print("SWORD HIT PLAYER")
			tagHumanoid(humanoid, vPlayer)
			getPlayerDamage(humanoid, vPlayer, enemyPlayer)
			wait(1)
			untagHumanoid(humanoid)
		end
	else
		print("break")
	end
end

function tagHumanoid(humanoid, player)
	if humanoid:findFirstChild("creator") then -- prevents overlapping
		if humanoid.creator.Value == player then
			humanoid.creator:Destroy()
		end
	end
	local creator_tag = Instance.new("ObjectValue")
	creator_tag.Value = player
	creator_tag.Name = "creator"
	creator_tag.Parent = humanoid
end

function untagHumanoid(humanoid)
	wait(10) -- Destroys creator after how many seconds
	if humanoid ~= nil then
		local tag = humanoid:findFirstChild("creator")
		if tag ~= nil then
			tag.Parent = nil
		end
	end
end

Mouse.Button1Down:Connect(blow)
connection = sword.Touched:Connect(blow)

It's not free model at all, aside from the tagging reference used in linked swords, everything else was written by me (and commented because commenting is important)

But I got the answer, you could just use tool.activated

You would need to get the Mouse on Client side from a Local Script and pass it using either a RemoteEvent or a RemoteFunction to a Server Sided Script. The Mouse or UserInputService can only be used on the client.

https://wiki.roblox.com/index.php?title=Remote_Functions_%26_Events