Disclaimer/notes about the Best Friend System since it's coming soon and some people are probably thinking about it/don't know all the details!
-You only get one selection, unless a reset is announced, much like the Present Egg Machine.
-By proxy due to the above, you may have multiple Best Friends.
-You and another person do not have to add each other to recieve the full effects on both ends. If you both add each other, someone's will be wasted. Try to form an agreement beforehand if you can to avoid this situation.
-If a Best Friend ditches, quits, goes on hiatus, deletes you, or any other event that would prevent you from seeing them log in for extended periods of time, then too bad - that selection was just wasted. Choose carefully!
Benefits:
-100 Pal Points when you use them instead of 10.
-You can see their super secret third team slot.
-You may use any of their three leaders infinitely as long as they've logged in at least once for that day.