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- How Rarity Works in Union Arena: A Collector’s & Player’s Guide
How Rarity Works in Union Arena: A Collector’s & Player’s Guide

What is Union Arena?
Union Arena is a Common Rules Trading Card Game (TCG) that brings together iconic characters from beloved anime series under a unified set of gameplay mechanics. Unlike traditional TCGs that require learning unique rules for each franchise, Union Arena streamlines the experience—players only need to understand one core ruleset to enjoy battles featuring their favorite heroes and villains.
This innovative approach reduces the learning curve and makes it easier for fans of different anime to dive into the game without needing to master multiple systems. Whether players are new to TCGs or seasoned veterans, Union Arena delivers an engaging and strategic gameplay experience enriched by the powerful narratives of its licensed intellectual properties (IPs).
What Titles or IPs Are Available?
Union Arena boasts a strong lineup of anime franchises, allowing players to craft decks featuring characters from well-known series. Currently, the game supports:
BLEACH: Thousand-Year Blood War – Relive the epic battles of Soul Reapers against the Quincy in the climactic war arc.
Hunter x Hunter – Build decks around Gon, Killua, and the rest of the Hunters as they embark on thrilling adventures.
Jujutsu Kaisen – Command the powerful Jujutsu Sorcerers and Cursed Spirits in high-energy battles.
Code Geass: Lelouch of the Rebellion – Strategize with Lelouch’s tactical genius and the powerful mechas of the Britannian Empire.
Demon Slayer: Kimetsu no Yaiba – Wield the breath styles of Demon Slayers or harness the terrifying abilities of the Twelve Kizuki.
Union Arena continuously expands its roster, making it an ever-growing battlefield where anime fans can pit their favorite characters against each other in strategic combat.
Booster Pack Configuration
Each Booster Pack of Union Arena contains 12 cards, offering players a chance to collect powerful units, support cards, and rare variants.
The game features four core rarity levels, ensuring that each pack provides a mix of accessible and highly sought-after cards:
Common (C) – Standard cards that form the backbone of most decks.
Uncommon (U) – Slightly rarer, often with improved effects or stronger stats.
Rare (R) – A step above Uncommon, featuring more unique abilities or better synergy.
Super Rare (SR) – High-value cards that are typically deck-defining or highly collectible.
In addition to these standard rarities, AP cards (Alternate Parallel cards) appear at a low pull rate, offering unique designs or foiling patterns for collectors and competitive players alike.
Furthermore, alt-art cards are included in the booster packs, featuring stunning alternative artwork of fan-favorite characters, making them especially desirable among collectors.
Deeper Dive into Super Rares (SR)
Super Rare (SR) cards come in four different tiers, each increasing in exclusivity and value:
Super Rare (SR) – The base version of the SR card with high playability.
Super Rare 1-Star (SR★) – A slightly rarer version featuring subtle design enhancements.
Super Rare 2-Star (SR★★) – A premium variant with alternative art and text foiling.
Super Rare 3-Star (SR★★★) – The chase card of the set, often serialized, making it highly valuable.
For example, Tanjiro Kamado has three SR variants:
SR – Standard Super Rare card. TCG Player market price for this card is around $17
SR★★ – Features textured foiling and alternate artwork, making it a striking upgrade from the base SR. TCG Player market price for this card is around $156
SR★★★ – A serialized version of the SR★★, increasing both its collectibility and value significantly. TCG Player market price for this card is around $410
Each increasing tier enhances the visual appeal and exclusivity of the card, making the higher-star SRs the most coveted pulls from booster packs.
Closing
Union Arena introduces a structured rarity system that rewards both collectors and competitive players. With Common, Uncommon, Rare, and Super Rare tiers, along with alt-art and serialized chase cards, the game offers something for everyone. Whether players are looking for meta-defining cards or high-value collectibles, the booster packs hold a diverse array of powerful and visually stunning cards.
For those seeking the rarest and most valuable cards, the Super Rare 3-Star (SR★★★) variants remain the ultimate prize, showcasing serialized designs that elevate their status in the TCG community.
For a full breakdown of the SR, SR★★, and SR★★★ cards available, check out the TCG Player links below to find and purchase these highly sought-after cards.
Two Star SR’s
One Star SR’s
Watch our stream where we open some packs!