Round1 announced its ONE PIECE collaboration early on July 1, and the real chase was the promo card signup. Signups were scheduled to go live later that day at 1:00 p.m. ET with 9,000 spots available.
The signup window was supposed to stay open until July 6 at 1:00 a.m. ET. Instead, demand was insane. The site crashed constantly for people trying to enter, and the 9,000 signups still closed within roughly 10 minutes.
The promo set has 10 character cards, one for each Straw Hat crew member. The artwork shows them playing sports, games, and doing the types of activities you can do at Round1. Examples include Bowling Luffy and Baseball Zoro.
The cards come in individually sealed one-card packs. Each pack contains one of the 10 cards at random, so completing a full set will not be as simple as picking the card you want.
If you successfully signed up, you can visit your designated Round1 location between July 18 and October 17 to get your packs.
The packs are free, but there is a catch: you get 1 pack for every $20 you reload onto your Round1 play card. Each signup allows a maximum of 10 packs, so getting the max requires loading $200.
Short answer: Round1 x One Piece signups had 9,000 slots and closed in about 10 minutes. Successful signup holders can get up to 10 random sealed one-card promo packs by loading $20 per pack onto a Round1 play card.
The promo is stated to be while supplies last. Since Round1 likely would not expect every one of the 9,000 signup holders to max out all 10 packs, total supply may be under the theoretical ceiling of 90,000 cards.
Because of that, anyone who got a signup should probably try to go sooner rather than later.
Members of the OPTCG Market Discord had hours to prepare before signups opened, along with tips to help secure a spot. Many members were able to get signups because they knew when to be ready and what to expect.
That is the bigger point: the Discord is always sharing updates and tips on important OPTCG releases before most collectors realize how fast they are going to move.