The Union Arena Star Tax: how much each star adds to a Super Rare
Union Arena prints its Super Rares in a star ladder — a base Super Rare and then 1-Star, 2-Star and 3-Star parallel versions. We took the market price of 5,758 priced singles across 75 sets to measure exactly what a star is worth.
Every star roughly multiplies the value ~11×
Median (typical) price of the same Super Rare at each star tier.
A base Super Rare is bulk-adjacent ($1.39). Add one star and it is $15, two stars $162, three stars $575 — and the 3-Star ceiling is $2,038.
The most valuable Union Arena cards
Almost all are 3-Star Super Rares of hit-anime protagonists.
| Card | Price |
|---|---|
| Sung Jinwoo (022) (SR★★★)Solo Leveling | $2,038 |
| Rapi (Regionals 25-26)Union Rare promo | $1,200 |
| Asuna (042) (SR★★★)Sword Art Online | $1,007 |
| Cha Hae-in (058) (SR★★★)Solo Leveling | $996 |
| Nezuko Kamado (021) (SR★★★)Demon Slayer | $936 |
Method & sources
- We pulled every priced Union Arena single (5,758 across 75 sets) via the open tcgcsv.com dataset (TCGplayer market price).
- We take the median per star tier (base Super Rare / 1-Star / 2-Star / 3-Star), robust to a few four-figure chases. Sealed product is excluded by name.
- Union Arena is a young, volatile market; treat these as a snapshot, not a fixed valuation.
- TCGplayer market price via the open tcgcsv.com dataset. Valued 2026-07-05. Reference estimates for raw cards, not sold or graded records. Reproducible from the open dataset.
FAQ
What do the stars mean on a Union Arena Super Rare?
They are parallel rarity tiers of the same Super Rare, and each one is worth far more. Across 5,758 priced singles: a base Super Rare is a median $1.39, an SR 1-Star $15, an SR 2-Star $162, and an SR 3-Star $575. Each of the first two stars multiplies value roughly 11×; a 3-Star SR is about 413× the base version.
What is the most valuable Union Arena card?
A Sung Jinwoo (SR★★★) from Solo Leveling, at around $2,038. The top of the market is almost entirely 3-Star Super Rares of hit-anime protagonists — Sung Jinwoo, Asuna (Sword Art Online), Cha Hae-in, Nezuko (Demon Slayer) — plus a few Union Rare tournament promos.
Are Union Arena cards worth money?
Most are not. The median single is $0.42 and 65% trade under $1. The value is concentrated almost entirely in the starred Super Rares (SR★ and up) and the Union Rare promos; everything else is a bulk playset piece.
Where does this data come from, and is it reliable?
We took the TCGplayer market price of every priced Union Arena single (sealed product excluded by name) across all 75 sets via the open tcgcsv.com dataset, then the median and max per star tier (TCGplayer market price via the open tcgcsv.com dataset, valued 2026-07-05). These are reference estimates for raw cards, not sold or graded records, and prices move fast on a young crossover game. We never scrape marketplaces and never invent a number; the figures are reproducible from the open dataset.
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Source: <a href="https://foilio.net/studies/union-arena-star-tax?utm_source=share&utm_medium=study_embed&utm_campaign=viral">The Union Arena Star Tax: how much each star adds to a Super Rare, Foilio</a> · data CC BY 4.0
</p>Foilio (2026-07-05). The Union Arena Star Tax: how much each star adds to a Super Rare. Retrieved from https://foilio.net/studies/union-arena-star-tax