Autocast

local Tower tower=itm.getCarrier()
local integer lvl = tower.getLevel()
local Iterate it
local Unit next
if itm.userInt > 0  then
    set it = Iterate.overUnitsInRangeOfCaster(tower, TARGET_TOWERS, 350)
    loop
            set next = it.next()
            call boekie_scroll_damage.applyCustomTimed(tower,next,lvl*2,4.0)
            exitwhen next == 0
    endloop
    set itm.userInt=itm.userInt-1    
endif
    
    call itm.setCharges(itm.userInt)  
    call TriggerSleepAction(0.1)  
    call itm.setCharges(itm.userInt) 
    

Header

    globals
    BuffType boekie_scroll_damage
    endglobals
    
    //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
    local Modifier m = Modifier.create() 
    call m.addModification(MOD_DAMAGE_BASE_PERC,0.1,0) 
    set boekie_scroll_damage = BuffType.create(0.0,0.0,true) //0.0 time since I will apply it custom timed 
    call boekie_scroll_damage.setBuffModifier(m)  
    call boekie_scroll_damage.setBuffIcon('@@0@@')  
    endfunction

On Item Creation

function onCreate takes Item itm returns nothing
    call itm.setCharges(10)
    //The item will use the userInt for charges, cause charges are bugged.
    set itm.userInt=10
endfunction

Periodic

function periodic takes Item itm returns nothing
set itm.userInt = itm.userInt + 3
if itm.userInt >= 11 then
set itm.userInt = 10
endif   
   
call itm.setCharges(itm.userInt)  
call TriggerSleepAction(0.1)  
call itm.setCharges(itm.userInt) 
endfunction