Why is my magic healing power script not working? [SOLVED]

I made a script that makes it so the player who uses the magic power through a remote event makes there health go to 100 but it's not working :(

Here is my script.

game.ReplicatedStorage.Events.HealingEvent.OnServerEvent:Connect(function(plr)
	local heal = Instance.new("Fire")
	heal.Color = Color3.fromRGB(0,255,0)
	heal.Parent = plr.Character.RightHand
	wait(2)
	plr.Character.Humanoid.Health = plr.Character.Humanoid.Health + 100
	heal:Destroy()
end)