From Diablo Wiki
One little problem with this page.
Those images aren't Arcane Torrent. They're Indigo runed Meteor. (Or at least an old, out of date version of Torrent).
Skip to 50s to see Arcane Torrent: http://www.youtube.com/watch?v=vwfE5GsYFpg&feature=player_detailpage#t=50s
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