This is my Liepard - she is quite cute, isn't she? I've had her since she was a Purrloin. They're native to Unova, and she's pure Dark-type.
[Grimsley gives a chuckle, as the Liepard is now getting even more strokes. Smug-pard.]
Well, Pokemon Centers didn't always exist. Pokemon would either battle less, or wait a while longer to heal.

Or, of course, they would fight to the death.