[GAMEPLAY] Janna's W bug
http://i.imgur.com/jQiQ8kx.jpg
Ever since the new patch was out (6.16), as soon as you join a game as Janna, you're granted Zephyrs' animation as well as its passive, even if you didn't level it up. And that's pretty much it.
Edit: Also, after using Zephyr, its passive doesn't go off until the ability comes off cooldown again.