KAGURABACHI is Union Arena's mover of the week, and one card is doing it

Union Arena has 81 sets and more than 8,000 cards on TCGIndex, and this week one of them did most of the moving. KAGURABACHI, released in February, gained about $950 of tracked value in seven days. Almost all of it came from one character.

All numbers below come from TCGIndex's Union Arena pages on the October 27, 2026 read (Near Mint, English, US marketplaces, refreshed overnight).

The game is calm. One set is not.

The whole Union Arena market we track is worth $61,432. It moved +0.6 % in 7 days and +2.8 % in 30 days, with 46 % of cards up on the week. That is a quiet market. Over 90 days it is up 18.8 %, so the slow climb of the summer is still there, it just is not happening everywhere at once.

KAGURABACHI is the exception: +12.0 % in 7 days, from $7,950 to $8,904. Before quoting a set move we check that it comes from cards that already existed, not from new listings joining the set. Here it does: the 7-day changes of the set's 130 cards add up to +$934, close to the set's +$954. (Demon Slayer Vol. 2 shows +30 % on the week too, but its cards only explain about $430 of the $1,081 jump, so we do not treat that one as a real move.)

Chihiro Rokuhira, 4.7x since June

The card behind it is Chihiro Rokuhira (060) in its SR** version. Our price history:

• June 6: $444.69
• August 18: $763.61
• September 16: $1,028.85
• October 19: $1,368.33
• October 26: $1,627.86
• October 27: $2,079.00

That is +33 % in 7 days, +55 % in 30 days and roughly 4.7 times its June price. On its own it added about $520 to the set this week, more than half of the set's gain.

One honest caveat: the last step, $1,628 to $2,079, happened in a single day and is also the highest print of the month. Its 7-day average is $1,558. In a game this thin, one sale can set the price. Read $2,079 as the latest print, and the 7-day average as the safer number.

The two-star now prints above the three-star

Here is the strange part. The SR*** version of the same card, the rarer one, sits at $1,898.37 on our page. But that price has not changed since September 14: no new sale recorded in six weeks. So the cheaper-rarity version has printed above the rarer one, because it is the one actually trading.

Two readings, and we cannot tell them apart yet. Either the three-star is underpriced and the next sale resets it well above $2,000, or the two-star's run is a few buyers chasing a short supply and will cool. The next SR*** sale settles it.

The rest of the set is following in a smaller way. The Action Point cards are up together: AP01 $337.50 (+26 % in 7 days), AP07 $314.50 (+24 %), AP04 $146.11 (+21 %). Chihiro's R* version (059) went from about $89 to $137.49 in the week (+54 %). When a set's playable and collectible pieces of the same character all rise at once, it is usually demand for the character, not a single card.

Where KAGURABACHI sits in the game

Chainsaw Man (July 2026) is still the most valuable booster set at $10,862, flat on the week (-0.6 %), led by Makima (024) SR*** at $2,637.57. KAGURABACHI is second at $8,904, then Solo Leveling ($6,925), whose Sung Jinwoo (022) SR*** reached $2,500 (+21.6 % in 30 days).

At the very top of the price list sit two serialized cards, Kaiju No. 8 (055) at $3,500 and Evangelion Test Type-01 Pseudo DMS Phase at $3,400. Both show 0 % over 30 days, which here means no new sale, not a stable price. Treat them as last-known prices.

What to watch

1. The next SR* Chihiro sale.** It tells us whether $2,079 for the two-star was a top or a floor.
2. BLEACH: Thousand-Year Blood War Vol. 3, November 13. Vol. 1 is at $2,658 and Vol. 2 at $2,762 (+4.6 % this week). Cards will show on the set page as they start trading.
3. My Hero Academia Special Booster, December 11. Its set page is up and will fill as cards are revealed.

Live numbers: KAGURABACHI card list and prices, Union Arena biggest movers, most valuable cards, all Union Arena sets.