The raceoftheday command, or rotd for short, opens a menu to give you information about your current race of the day.

Each day, one of the race you have access to is randomly selected to become your race of the day. On that day, while you play that race, you will earn 2x the regular XP. This bonus is valid for up to 7000 bonus XP per day, or 10500 XP for donators.

If you dislike the current race of the day, you can purchase the Race of the Day Changer from the shopmenu. Doing so will cost 1500 of the remaining bonus XP.