User blog comment:Sagee Prime/Nunu... and the future of supports/@comment-203.217.125.25-20120819125649/@comment-3323227-20120819200516

Nunu's buffs have 100% uptime which other supports don't have without massive CDR. He has great AP ratios, Currently the best sustain in the game. Next to no mana costs, and all of his utility is overbearingly strong. He completely shuts don't auto attacking champions. His Ice blast slows makes it so they can't fight back and they can't run and his movespeed buffs makes it so he can chase and flee infinitely.

Nunu is pretty broken right now how he is.