Can't get CS multi target system to work

function Mass_Sheep_Conditions takes nothing returns boolean
    return ( GetSpellAbilityId() == 'A003' )
endfunction

function Mass_Sheep_Actions takes nothing returns nothing

 local location loc =GetSpellTargetLoc() //The target location
 local unit u       =GetTriggerUnit()
 local integer l
 local real area

    call PolledWait( 0.75 ) //For appearance sake, it looks better with this delay.



    set l = GetUnitAbilityLevel( u,'A003')


    set area = 100.0 + l*50.0 // prepare the Area argument


    call CasterCastAbilityLevelAOELoc( GetOwningPlayer(u), 'A005', l ,"polymorph", loc, area, false, true)

    //
    // CasterCastAbilityLevelAOELoc has got 2 variations from CasterCastAbilityAOE , first of all it uses
    // a location variable, second it has an extra argument called level to set the level of the ability
    // to cast.
    //
    // In this case we are using the spell target location and the level of the spell as those arguments.
    //
    //
    // Notice that our area argument uses a formula based on level, it is 150. for level 1, 200 for level 2, etc
    //
    // It is a negative instant spell to cast so the last values are false and true.
    //

    call RemoveLocation(loc)

 set loc=null
 set u=null

endfunction



//===========================================================================
function InitTrig_Mass_Sheep takes nothing returns nothing
    set gg_trg_Mass_Sheep = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Mass_Sheep, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddCondition( gg_trg_Mass_Sheep, Condition( function Mass_Sheep_Conditions ) )
    call TriggerAddAction( gg_trg_Mass_Sheep, function Mass_Sheep_Actions )
endfunction