Healing tool not working?

This script is inside the tool in a server script, but when the tool is activated nothing happens

local tool = script.Parent
local char = script.Parent.Parent
local deb = false
math.randomseed(tick())

tool.Activated:connect(function(heal)
    if deb == false then
        tool.Enabled = false
        deb = true
        local pe = script.ParticleEmitter:Clone()   
        pe.Parent = char:FindFirstChild("Torso")
        for i = 1, math.random(5,12) do
            char.Humanoid.Health = char.Humanoid.Health + 1
            wait(.5)
        end
        wait()
        pe:Destroy()
        deb = true
        tool.Enabled = true
    end
end)