News from Konami themselves, including some further details!
Arriving June 25, 2021, King’s Court (MSRP: $3.99 per pack) revitalizes Yugi’s “Three Musketeers of Face Cards” – King’s Knight, Queen’s Knight, and Jack’s Knight – with a new high-speed Summoning strategy that always leaves you with a full hand!
Joining the royal court is the World Premiere Joker’s Knight, a 2000 ATK monster similar to Magician’s Souls that can assume the identity of all 3 of the Knights. Joker’s Knight isn’t the only new card that’s going to keep returning to your hand though! Two more World Premiere “Joker” cards, 1 Spell and 1 Trap, will provide you with powerful effects and then return to your hand in the End Phase.
The complete King’s Court booster set contains 62-cards*:
10 Ultra Rares
15 Super Rares
*15 cards in the set are also available as Collector’s Rares
Each booster pack contains 7 cards:
1 Foil card per pack
6 Rare cards per pack