User blog comment:Voads/Aura, The Fairy’s Blessing/@comment-98.207.105.47-20120221214627

There's a problem with the E spell - You always will have two free wards out. However, at lower levels, it allows you to change the position of either ward much more often, at a drastically lower mana cost. At higher levels, you still can have two wards out at max - but you can change where they are much less often. This is why I would delay ranking up her E, maybe even leave it at rank 1.

Also the ultimate is very weak, and that would make Aura only good for counterpicking stealth which is dead easy already with Lee Sin and Oracle's Elixir and pink wards.