How about something like "Knock out the Leaderboard"? You could choose any one of the categories, or alternate them throughout the day/week/month/year. It could be just the top 10 on the LB , or all of them, If someone KOs that player they get x amount of pts. If they KO the #1 leader, it would be more pts than the 10th ranked member. For the Monthly earnings LB you would have to wait a week or 2 into the month for the promo to kick in though, so probably not include that.