Banshee's Veil: ~3k
Absolute Zero dealt 375 / 550 / 750 (+3 per ability power) magic damage. Cooldown 0 seconds.
Ice blast: Cooldown 6 seconds.
(Data from game Database)
Well lets see, you could ice blast, removing veil's effectiveness, then pop absolute zero, keeping in mind, ice blast will hit as about your absolute zero begins casting.
3 damage per ability power per damage?! 0 cooldown? why are you crying? hell blow your ulti early, remove the BV spell block, cast ice blast, run up, ulti again.
Walk away fatter.
Nerf Nunu's ultimate please.