So, I'm trying, trying. But I can't figure it out. I read that mouse objects aren't possible in Server Scripts. Is there any possible way?
I got this. In the local script.
plr = game.Players.LocalPlayer
game.Workspace.FE.Saber:FireServer(plr:GetMouse(),plr)
And this in the server script.
Link to the script. It was too big.
I get all errors about the mouse object.
Any help?

2 comments
You can't. Even with using RemoteFunctions, all you'll get is nil.
What are you trying to do? We need more information.