Worldknit forces all your cards into your deck and rewards you by giving your lands the ability to generate mana of any color
This leads to people opening each box in a case until they hit the highest guaranteed rarity, then selling the rest
Ungraded & graded values for all One Piece OP01 One Piece Cards
If you've already got a lot of cards from The First Chapter, apart from the guaranteed foils in the 2 decks, it might be more cost-effective to put your money towards boosters, unless you're looking to pick up the cards from either of the starter sets quickly, then the fixed nature of the decks will get you those quicker than randomized boosters
I dont know about you, but I never really picked up on the metal vibes they were insinuating in this set
When I got back home, I quickly pulled the cards from each Happy Meal box