Talk:Viktor/@comment-4145339-20111229013426/@comment-96.48.121.190-20111229032434

First it deals damage at the target location (noted in 'initial magic damage') and silences for 0.5 seconds for anyone hit. For the next 7 seconds after the initial damage, it stays there and deals continuous damage to anyone in range. Activating the ability again makes the storm come towards Viktor, and it moves faster when Viktor is closer.

...That's my guess.