u/ConfusionBorn510

There was a time that characters ran out of chakra during fights and had to resort to other strategies or weaker attacks. This was excellent because op habilities like kakashi's kamui could only be used once or twice per fight and people were constantly thinking about chakra. Then it sort of disappeared.., apart from maybe Kakashi and it turned almost into a meme at a point because he was the only one to actually run out for chakra from a certain point in the series