Cards with this rarity have a pull rate of 0%/0.714%/2.857% as the 1st-3rd/4th/5th card
To explain what the project is, you need some background on whats an Alpha playtest card and why it necessitates a project

Home One Piece TCG One Piece Booster Boxes One Piece Booster Packs One Piece Starter Decks One Piece Double Packs Anniversary & Premium Collections Pokmon TCG Pokmon Booster Boxes Pokmon Elite Trainer Boxes Pokmon Booster Pack Pokmon Collection Box Union Arena TCG Union Arena Booster Boxes Union Arena Booster Packs Union Arena Starter Decks Dragon Ball TCG Dragon Ball Booster Boxes Dragon Ball Booster Packs Dragon Ball Starter Decks Gundam TCG Gundam TCG Starter Decks Gundam TCG Booster box Home One Piece TCG One Piece Booster Boxes One Piece Booster Packs One Piece Starter Decks One Piece Double Packs Anniversary & Premium Collections Pokmon TCG Pokmon Booster Boxes Pokmon Elite Trainer Boxes Pokmon Booster Pack Pokmon Collection Box Union Arena TCG Union Arena Booster Boxes Union Arena Booster Packs Union Arena Starter Decks Dragon Ball TCG Dragon Ball Booster Boxes Dragon Ball Booster Packs Dragon Ball Starter Decks Gundam TCG Gundam TCG Starter Decks Gundam TCG Booster box Home / One Piece TCG / One Piece Booster Boxes / One Piece Card Game The Azure Seas Seven [OP14] Sealed Booster Box | English Version One Piece Booster Boxes , One Piece TCG One Piece Card Game The Azure Seas Seven [OP14] Sealed Booster Box | English Version 1,250.00 AED Availability: 3 in stock - One Piece Card Game The Azure Seas Seven [OP14] Sealed Booster Box | English Version quantity + Add to cart Categories: One Piece Booster Boxes , One Piece TCG Brand: One Piece Card Game Additional information Weight .5 kg Related products Add to cart One Piece Card Game Starter Deck: Absolute Justice [ST-06] | English Version 150.00 AED Add to cart Add to cart One Piece Card Game Starter Deck: Smoker [ST-19] | English Version 300.00 AED Add to cart Add to cart One Piece Card Game Starter Deck: 3D2Y [ST-14] | English Version 150.00 AED Add to cart Add to cart One Piece Card Game Premium Booster The Best [PRB-01] Sealed Booster Box | English Version 4,500.00 AED Add to cart Scroll to Top

One particularly damning thing to note is this chart: This table shows that with 7 Swamp and 7 Plains, you will have the required Plains to cast a turn-3 Territorial Hammerskull only 85.9% of the time (on the play, in absence of mulligans or card selection)
Todays focus is Onslaught , the twenty-seventh expansion set, which was released in October of 2002 and is the first set in the Onslaught block