User blog comment:Voads/Aura, The Fairy’s Blessing/@comment-160.5.232.116-20120214224513/@comment-4773210-20120220162435

With the new increasing cooldown, you can only place a maximum of 2 wards at any time. It's possible that you could do a "charge" system with the wards in a similar fashion to Teemo's mushrooms, so that you could place multiple wards down at a time. The wards should also probably have health, or make sure that you say they're untargetable.