• Challenge monsters in Wave Duels! Make it through D.D. Castle!
• Obtain Castle Keys by dueling in Duel World and up to 3 times a day by dueling in Ranked Duels.
• Use Castle Keys to fight monsters in Wave Duels! Clear a Floor to obtain that floor’s reward and Lottery Coins!
• Save up your Lottery Coins and spend them at the Lottery to earn rewards.
• Additional Floors will unlock August 15th and August 17th
• Use the EX Draw and Summon Item to Gain an Advantage!
• Castle Keys are not obtained from dueling Legendary Duelists at the gate and Vagrants.

• By beating floors 7, 15, 22 and 30 in less than 10 Turns, you unlock special Challenge Floors with bonus rewards!

• Wave Duels are 3 consecutive Duels in a Row, maintaining board state from previous Duels, in each Wave, your opponent goes first.
• Using monsters that are strong against the opponent’s Attribute will deal double battle damage (DARK > LIGHT > DARK; FIRE > WIND > EARTH > WATER > FIRE)
• Use the EX Draw & Summon Item to Gain an Advantage!

• Grandpa’s Cards , Fatal Five, Titan Showdown , and Destiny Board are unusable for Wave Duels

• The following cards are unusable for Raid Duels:

The following cards and items can be drawn by the event only Lottery:

Most of these can also be purchased from the EX Shop.