Talk:Nautilus/@comment-4934699-20130815135237/@comment-5266525-20130820204955

Cooldowns (and mana costs too) aren't so much based on how effective they are as how much risk you take by using them.

Nautilus' ult is a targeted (potentially-multitarget) knockup/stun that places very little risk on him to use. It needs that cooldown to not make him obnoxious to fight against. Compare most global ultis which are equally hard to fight against repeatedly getting hit with the nerf hammer.