User blog comment:Parrrley/CCC5 - Theophilus, the Highest Mage/@comment-6719710-20140908222835/@comment-5686533-20140909052309

In fact, he gains a part of that when he maxes a basic ability (like E gives the free liandry), and when he max the ult any effect received is doubled.

He really need to make that more obvious though... plus it's a passive that could be made without an item.