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  6. Soei (2-021)

Union Arena · UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-2-021 · Rare

Soei (2-021)

Union Arena card price for Soei (2-021): $4.07 market, from $1.50 at the cheapest listing, Foil printing, updated Oct 19, 2026. Full price history since Jun 22, 2026 below.

Market price · Foil · Oct 19, 2026
$4.07
0.0% this week · −7.5% in 30 days
Buy on eBay →
1 day0.0%
7 days0.0%
30 days−7.5%
90 days+804.4%
1 year—
All time+714.0%

Sellers right now

$1.50lowest listing$5.00highest
Market price$4.07
Mid listing$4.00
30-day avg$4.17

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$4.07

One year

$0.2952-week low$4.4052-week high
In the range92%
All-time low$0.29
All-time high$4.40
First priceJun 22, 2026
Foil · market price
$0.04$1.63$3.22$4.81
$4.07
Jun 22Jul 31Sep 9Oct 19
TCGplayer market price · via tcgcsvtcgrate.com

Price story

Soei (2-021) was released in June 2026. Launch-week prices are left out here: before supply arrives they are mostly guesses. The cheapest listing right now is $1.50, and the 30-day average market price is $4.17.

Printings

PrintingMarketLowHigh7d
Foil$4.07$1.50$5.000.0%

The card in play

Card type
Character
Affinities
Kijin
Series Name
That Time I Got Reincarnated as a Slime
Battle PointBP
3000
Required Energy
2
Action Point Cost
1
Generated Energy
B
Activation Energy
Blue
Card text

[When Played] If you have two or more event cards in your sideline, draw a card.

Other printings of Soei

10 more · $0.11 – $29.06
All printings
Soei (060) (SR*) (UE20BT/TSK-1-060), That Time I Got Reincarnated as a Slime — Union Arena card price −0.6% 7d Soei (060) (SR*) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-1-060 $29.06 Soei (060) (UE20BT/TSK-1-060), That Time I Got Reincarnated as a Slime — Union Arena card price 0.0% 7d Soei (060) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-1-060 $3.42 Soei (059) (UE20BT/TSK-1-059), That Time I Got Reincarnated as a Slime — Union Arena card price −0.3% 7d Soei (059) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-1-059 $3.21 Soei (021) (UEPR/TSK-1-021), That Time I Got Reincarnated as a Slime Release Event Cards — Union Arena card price −0.9% 7d Soei (021) UE20BT: That Time I Got Reincarnated as a Slime Release Event Cards · #UEPR/TSK-1-021 $2.18 Soei (008) (UEPR/TSK-2-008), That Time I Got Reincarnated as a Slime Release Event Cards — Union Arena card price 0.0% 7d Soei (008) UE20BT: That Time I Got Reincarnated as a Slime Release Event Cards · #UEPR/TSK-2-008 $2.07

Also in UE20BT: That Time I Got Reincarnated as a Slime

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Full set
Luminus (048) (SR**) (UE20BT/TSK-2-048), That Time I Got Reincarnated as a Slime — Union Arena card price 0.0% 7d Luminus (048) (SR**) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-2-048 $324.06 Hinata (034) (SR**) (UE20BT/TSK-2-034), That Time I Got Reincarnated as a Slime — Union Arena card price 0.0% 7d Hinata (034) (SR**) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-2-034 $323.96 Milim (085) (SR**) (UE20BT/TSK-1-085), That Time I Got Reincarnated as a Slime — Union Arena card price 0.0% 7d Milim (085) (SR**) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-1-085 $311.07 Rimuru (044) (SR**) (UE20BT/TSK-2-044), That Time I Got Reincarnated as a Slime — Union Arena card price 0.0% 7d Rimuru (044) (SR**) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-2-044 $292.68 Rimuru (107) (Box Topper Gold Foil) (UE20BT/TSK-1-107), That Time I Got Reincarnated as a Slime — Union Arena card price −5.3% 7d Rimuru (107) (Box Topper Gold Foil) UE20BT: That Time I Got Reincarnated as a Slime · #UE20BT/TSK-1-107 $273.01