Do Friendlies provide experience for your players? If so, I would like to see the limit of 2 per day kept in place. This only because someone with, say 10 friends, could conceivably earn 5 times the level of experience than someone with only 2 friends. The limitation of 2 Friendlies per day would even those odds. I don't think it would create a limiting factor on friends you'd want in-game as you can still send and receive goodies like packs and XP.