[{quoted}](name=Lemon Graber,realm=NA,application-id=3ErqAdtq,discussion-id=L7KEZdAT,comment-id=000000000000,timestamp=2016-03-26T14:44:49.164+0000)
You would just teleport yourself to him and he won't receive any damage. You can also do that on allied champions, neutral monsters, minions and wards. Kat players use this technique defensively, to retreat or avoid a skillshot by teleporting to a friendly unit. She can't deal damage to allies tought!
Shunpo to the Ghost right?
so in a example scenario if you are playing kat and you see morde kill and ult enemy champion, for example, lets say it's like leona, the ghost of an enemy leona and you were looking retreat etc, defensive, what would you do exactly if you ere near the enemy champion?