Talk:Friend Invitation Campaign/@comment-123.136.106.240-20150902085512/@comment-1465604-20150902114252

Pretty sure they've been calling this "gems" for a while. Not always, but interchangeably with "crystals". Also, I'm equally sure the Friendship Invite function has been broken since at least the last update. Chinese users have reported the function being broken and new users have reported the function being broken in the English version. Using a code will still net you 5 crystals, but the owner of the code will not get any crystals once you finish 1-3-3.