User blog comment:ShininGeek/Maria, The Arctic Enchantress/@comment-10540150-20131202231428/@comment-7709681-20131203000747

I would approve the global damage only if the ability has the same cooldown as  (200/180/160 CD) and even in this case is problematic, since it damages ALL units in the map, not only Champions. The other option is to reduce the damage and make it a AoE of global cast range, such as