Anivia's Q
Anivia's Q should be activatable anytime, including while you are CC'd.
Currently, you can never activate it because another champion breathing on you causes you to lose control of the projectile. That means in a 1v1 clash, Anivia will always lose to the opponent's CC.
You should be able to activate the Q anytime, regardless, and the traveling speed could use a buff as well.
R to hit his R back while cc'd!!! LOL XDDDDDDD
Riven R2 while CCd
move and redirect R while CC'd
e to move away while cc'd
pick a card while cc'd
reactivate q stun while cc'd
r to blow up while cc'd