Can someone tell me the name of the thing I'm looking for?

I know there's a way to do this, I just forgot the name of it. How can I have multiple duplicates of a script but change one and it changes all of the duplicates?

For example, if I had a kill script and 50 kill bricks with 50 different kill scripts. (I know I could just use 1 script for it, but say I needed to use all 50 scripts) How would I change 1 script and it changes the rest

for _,v in pairs(PlacewhereScriptsAre:GetChildren()) do
    v:Destroy()
end
for i = 1, HowManyScriptsYouWant do
	local Script = script:Clone()
	Script.Parent = PlacewhereScriptsAre
end
--there might be an easier way but idk it

Its called a Linked Source to make a linked source make sure your game is published Next make the script you want then right click it and save as a linked source name the source now it is an asset under the scripts section in your game explorer now you can have multiple scripts, but have one script edit all of them

You can use Module script for functions that you'll use in multiple scripts