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Black Progenitor — UE20BT: That Time I Got Reincarnated as a Slime Union Arena card
Union Arena · RLive pricing

Black Progenitor

Stable-0.8%
Black Progenitor's Near Mint price is up 11.2% ($0.12) over the past 30 days.
9h ago· Updated Nov 1, 2026
Card Details
TypeEvent
Mana Cost4
Card TextChoose one character with [2000 or less BP] on your opponent's field. If it can't be on your field, it goes to the graveyard instead. If 4 Rimuru is on your field, choose up to one monster card from your field with 1000 BP until the end of this turn.
inkwell Fair Value™?· NM
$1.19
single source
$1.18
$1.20
Condition?
Confidencemedium
Prices as ofNov 1
Normal—
Cheapest printing—
Set Price Alert

Why This Price

inkwell Estimate
Fair Value$1.19
Movement
7D Change-0.8% (-$0.01)
30D Change+11.2% (+$0.12)
Freshness
Prices as ofNov 1
Update cadenceDaily
Inkwell Fair Value$1.19NM · compare before you buy
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How much is Black Progenitor worth?
The current Near Mint price for Black Progenitor from UE20BT: That Time I Got Reincarnated as a Slime (Union Arena) is $1.19. It has decreased 0.8% over the past 7 days.
What set is Black Progenitor from?
Black Progenitor is from the UE20BT: That Time I Got Reincarnated as a Slime set, released June 2026. It is a R in Union Arena.
What rarity is Black Progenitor?
Black Progenitor is a R card from UE20BT: That Time I Got Reincarnated as a Slime in Union Arena.
How has the price of Black Progenitor changed over the past 30 days?
Over the past 30 days, the Near Mint price of Black Progenitor has risen 11.2% ($0.12) to $1.19.