Every two hours a raffle happens on Archlight's world, you can join by buying lottery ticket, each lottery ticket is 10,000 gold, you can buy up to 50 tickets each round. Use the command !lotteryticket AMOUNT to purchase these tickets.
Here's a list of all items that you can get as a prize:
|1||100% XP Boost|
|2||50% XP Boost|
|1||Golden Regrade Key|