How do I make a sword not be able to kill players?

you just have to add an if statement in the roblox sword that looks something like this

local sword = script.Parent 
--the variable of the sword
local hum = game.Players.LocalPlayer
sword.Touched:Connect(function(hit)--touched event
local zombie = --here you get the npc you have
                           --as an example "local part = 
                              game.workspace
if zombie then
--take from the npc's health
end
if hum then
--take 0 hp from the player when it is hit by the sword
end
end)

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