User blog comment:Varnagas/Blank1/@comment-3974211-20120826002536/@comment-3974211-20120826003031

In fact, even Cassiopeia can get away with it due to the short-range nature of her ultimate.

There are very few casters who still wouldn't benefit from this item... in fact, the only ones that won't are the ones that already didn't (such as Xertah, Kog'Maw, etc).