Autocast

    local integer i = itm.getCharges()
    local Tower tower = itm.getCarrier()
    local Playor p = itm.getOwner()
    local Item new
    local real rnd = GetRandomInt(0,24) //25 cases total
    local integer rarity = 1            //0-1 unique, 2-5 rare, 6-24 uncommon
    if rnd < 2 then
        set rarity = 3
    elseif rnd < 6 then
        set rarity = 2
    endif
    if i > 0 and GetPlayerState(p.getThePlayer(), PLAYER_STATE_RESOURCE_GOLD) >= 500 then
        set itm.userInt2 = itm.userInt2-1
        call p.giveGold(-500,tower.getUnit(),false,true)
        set new = Item.create(p,RandomItemSet.permanent.getRandomItemAtRarityBounded(rarity,14,25),tower.getX(),tower.getY())
        call new.flyToStash(0.0)
    endif
    call checkLevel(itm)

Header

    globals
    endglobals
    
    function checkLevel takes Item itm returns nothing
        local integer curLevel = itm.getOwner().getTeam().getLevel()
        if curLevel > itm.userInt3 then 
            set itm.userInt = itm.userInt + (curLevel-itm.userInt3) 
            set itm.userInt3 = curLevel 
        endif
        loop
            exitwhen itm.userInt < 5 or itm.userInt2 >= 5
            set itm.userInt = itm.userInt - 5
            set itm.userInt2 = itm.userInt2 + 1
        endloop
        call itm.setCharges(itm.userInt2)
    endfunction
    //Do not remove or rename this function!
    //Put your initialization tasks here, this function will be called on map init
    private function init takes nothing returns nothing
    endfunction

On Item Creation

function onCreate takes Item itm returns nothing
    call itm.setCharges(1)
    set itm.userInt = 0
    set itm.userInt2 = 1
    set itm.userInt3 = itm.getOwner().getTeam().getLevel()
endfunction

On Item Drop

function onDrop takes Item itm returns nothing
    call checkLevel(itm)
endfunction

On Item Pickup

function onPickup  takes Item itm returns nothing
    call checkLevel(itm)
endfunction

Periodic

function periodic takes Item itm returns nothing
    call checkLevel(itm)
endfunction