Union Arena's Demon Slayer release marked a significant moment for the TCG in 2025, bringing the beloved anime franchise into the competitive card game landscape. Event Pack Vol. 2 became a sought-after product among collectors eager to obtain promo cards featuring characters from the series' most pivotal moments. These promotional releases helped establish Union Arena's foothold with anime fans discovering trading cards for the first time. Nezuko Kamado stands as one of the franchise's most iconic characters, and this promo card captures her importance to the story. Collectors value cards featuring Nezuko for her central role in the narrative and her instantly recognizable design, making her representation in the Union Arena set particularly meaningful to fans building collections around their favorite characters.