Header

  globals 
    //@export
    BuffType drol_slow
    //@export
    BuffType drol_mortalAura
    
  endglobals
  
//The init function
private function init takes nothing returns nothing

    local Modifier slow = Modifier.create()
    local Modifier m = Modifier.create()
    
    call slow.addModification(MOD_MOVESPEED,0,-0.001)
    call slow.addModification(MOD_SPELL_DAMAGE_RECEIVED, 0, 0.0005)
    set drol_slow = BuffType.create(0,0,false) 
    call drol_slow.setBuffIcon('@@0@@')
    call drol_slow.setBuffModifier(slow) 
    call drol_slow.setStackingGroup("drol_slow1") 
    
    set drol_mortalAura = BuffType.createAuraEffectType(true)  
    call m.addModification(MOD_DMG_TO_HUMANOID,0.1,0.002)
    call m.addModification(MOD_DMG_TO_ORC,0.1,0.002) 
    call m.addModification(MOD_DMG_TO_NATURE,0.1,0.002) 
    call drol_mortalAura.setBuffModifier(m)  
    call drol_mortalAura.setStackingGroup("drol_mortalAura")  
    call drol_mortalAura.setBuffIcon('@@1@@')
    
endfunction

On Damage

function onDamage takes Tower tower returns nothing
    local Unit creep = Event.getTarget()
    local integer lvl = tower.getLevel()
    
    if creep.isImmune() == false then
        call tower.doSpellDamage(creep,200*(1+lvl*0.05),tower.calcSpellCritNoBonus())
        call drol_slow.applyCustomTimed(tower,creep,R2I(0.2*1000),4+lvl*0.1)
        call SFXOnUnit("Abilities\\Spells\\Orc\\FeralSpirit\\feralspirittarget.mdl",creep.getUnit(),"origin")
    endif
    
endfunction

Tower Aura