User blog comment:DjRend3r/Trebelion, The Beat Ascendant/@comment-5649293-20140419210333

The only thing i find quite OP is the ult with 100 stacks; 40% damage as TRUE damage. (Not to meantion that his ult is an instant - no channel -  AOE)

With, - let's say - 400 ap lategame :

Ult damage with 100 stacks : 660 BASE DAMAGE + 352 (80% ap) AP RATIO + 404 (264 + 35% ap) TRUE DAMAGE = 1416 DMG.

Almost as an instant AP Nunu - maximum channel - ULT.

Like he can shutdown both their mage and marksman (oh and their support, don't forget the support !)