They were only available at the Pokemon Centers in Japan, in September, 2025, for a very limited time and in very limited quantity
The clip above has especially caught peoples eyes because of the kid in the cart, being surrounded by rack after rack of cards that this asshole is taking to sell at higher prices, as real customers try to take a pack or two before he snatches the lot
When its summoned, the player can send 2 Monarch Spells and Traps with different names from the hand and/or deck to the grave, then special summon a monster with 2400 ATK and 1000 DEF from the deck...then place it in the hand during the end phase
Creature removal for green and blue, enchantment removal for black and red, hand disruption for the non-black decks etc
If you dont need your Normal Summon, you can often Normal Summon Meister to avoid the lock