Talk:Channel/@comment-5277764-20130412181431/@comment-5277764-20130718034752

Anivia's ult is a toggle that has the characteristic of a channeled ability: It can be interupted this makes it different from Swain's ultimate because CC doesn't knock him out of Bird form unlike how CC will interupt Anivia's ult. A more recent example of this is the upcoming champion Lucian who is able to move around while channeling his ultimate but can be interupted by CC
 * Glacial Storm is considered a channeled ability and will be toggled off if Anivia is affected by most interrupts. Taunts and fears, however, will not toggle Glacial Storm off.  Taken from ability details