In the description of the move Retailiate, it says that it gain Double the Power if a Friendly Pokemon faints. Is that a Pokemon in your team or Is it different
Well, that was an idiotic last answer. I'd think it'd be obvious the answer. By friendly, they mean an allied Pokemon aka a Pokemon who is on your team. Any Pokemon on your team.
Joke: Besides Delcatty. Nobody is going to avenge a Delcatty.
