Well this is probably found and leaked and w/e...I always never find things fast but anyway here it is (sucks)
[hide=1]Click on magic spell in your spell book in the mini-game and then use it on the Mystic in your team base, or a teammates familiar and it attacks them >.<
My Video-
http://www.youtube.com/watch?v=JHTLSkOfjj4[/hide]