Buff Bar

sometimes when playing ive noticed (not only in my client but in streamers i watch too) that theres a random blue icon that appears in their buff bar. when i managed to get my cursor over it in one game it said something about dravens ult but there was no draven in the game.

EDIT: i can't seem to upload the photo but uh. heres the imgur picture of it. http://i.imgur.com/tY0YvOq.png