As we all know. it is sometimes hard to focus someone in a team fight. especially when we can not even see the said target. So the fact that you can ping the champ and have a mark over their head is extremely handy. However in my latest game it did not matter how many times i pinged my enemy, the mark never appeared making it hard to fight. If anyone else has experienced this please thumbs up and comment.

update. the mark does apear but fades about a second later which makes it of no use.