To use one of my previous examples, you can play any card that has black or blue in its color identity if you play Yuriko, the Tiger's Shadow as your commander
Be sure to protect Aurora using various Bodyguard and Challenger cards, such as Hercules, True Hero and Prince Eric
As the ability resolves, first the active player may choose a blue card in their graveyard, then each other player in turn order does the same, then all cards chosen this way are returned to their owners' hands
9 Ash Blossom & Joyous Spring Ash Blossom & Joyous Spring is a Level 3, Zombie-type Tuner monster in In Yu-Gi-Oh
Also additional Mega ex Pokemon make their entrance in the new set such as: Mega Gengar ex, Mega Lopunny ex, Mega Heracross ex and more