This is done by taking cards out of your main deck and inserting cards from your sideboard
Miku, Child of Song is a reskin of Child of Alara, which is a 6/6 legendary creature with the devastating ability to destroy all nonland permanents if she dies
The sheer value you can generate from creatures that enter the battlefield, drawing cards, and playing extra lands snowballs at an incredible pace, which can make even a round or two of Chulanes shenanigans too much for the rest of the table to compete against
This ability reminds me of a rare in Red (Raging River) that was printed way back in Alpha that divided grounded creatures into two sides of a River and then they could only block or be blocked by that side, so this is a clear call back to that, but color shifted to Azorius, which makes no flavor sense to me
Additionally, it can protect any of your creatures by making them indestructible, for just and a Food token
Familiar faces like Captain America, The Incredible Hulk, and Doctor Doom were previewed during an hour-long livestream, along with the reveal of the Fantastic Four as the main focus of one of the expansion's preconstructed Commander decks
