Add this to either her passive or to her Ult:
PASSIVE: For each enemy champion chilled, Anivia gains 20/30/40 (at lvl 1/7/13 or ult rank 1/2/3) movement speed. [Minions and monsters give half that bonus.] <-- Dunno if thats too much
Pretty straightforward. More MS in combat.
sp4412 votesYeah, no. Thing is, Anivia's kit is already more or less perfect and shouldn't be touched upon. It's got a specific niche, it's efficient at that, and it's satisfying to use. The only thing that she really needs is some number tweaks to even out the peaks and valleys during her early game, and a visual update, with new AA animations to booth, because her current animations are fucking awful.
Stiv12341 votesThe two things that are the reason for me not wanting to play her is her low MS and her mana costs.
sp4411 votesJust bump up her base MS and lower her absurd mana costs then. No need to give her ridiculous mobility.
I mean, Anivia's thing is that she trades mobility for mobility inhibition. She doesn't move fast, and neither will you.