Seeing/Hearing enemy abilities in fog of war
While playing the game, i notice that sometimes i can see particular skills being used in fog of war. For instance in a recent game, i was seeing Katarina's blades spinning as she was stealing my blue buff, (but i could not see her actual character) and i could hear the skill sound when hovering my screen over her assumed position. Is this a bug or is it something that was given to the players to help identify when camps are being taken?