User blog comment:Parrrley/CCC5 - Theophilus, the Highest Mage/@comment-1330314-20140910082611/@comment-24474109-20140910095704

He gains boni whenever he maxes a spell, he gains 10% CDR for maxing Q, 2.22 AP/lvl for maxing W, resistances for maxing E and all of these boni are doubled when he maxes his R. On level 18 with all skills at max level he will have 20% CDR, 100 AP, 50 Armor and 25 Magic Resist.

And yes it is functionally identical to that, basically it's syndra's, viktor's and cassio's passive in one which is why it's getting reworked. it's unoriginal and too strong