The One Piece 4th Anniversary Treasure Campaign Pack marked a pivotal moment in the anime trading card market during 2026. This promotional release coincided with the franchise's sustained cultural momentum, capturing collector interest during a period when One Piece cards were establishing themselves as serious competition in the TCG landscape. Anniversary sets typically represent milestone celebrations and often carry added significance for long-term collectors building comprehensive collections. Marshall D. Teach, known as Blackbeard, remains one of the series' most compelling antagonists. This card captures the character at a defining point in the narrative, and collectors value prominent antagonist cards for their dramatic artwork and narrative importance. Fans of the character and those pursuing complete set collections seek this promo variant as an essential piece of their One Piece holdings.