yugioh premium pack 1 booster box Yu-Gi-Oh: and introduces the new Gold Secret card rarity YUGIOH TCG PP01 Premium Pack

Pull rate from Regular Packs: 0.23% The estimated pull rate for Greninja ex (Mega Rising) from a Regular Pack is approximately 0.23%, meaning you might need to open around 443 Regular Packs to obtain it

One could argue that they finalized the designs with Greenbacks and then did a test run of no number blue backs to see how they turned out/would be received

Things like this will ultimately become collectible/desirable on their own, as people collect the history of grading

Unlike a face-down creature that was cast using a disguise or morph ability, a cloaked creature may still be turned face up after it loses its abilities if it's a creature card