Compare: Usopp's Rubber Band of Doom!!!

attested · seq=#216

Same name, different sleeves. Signal compares each row against the reference printing's recent market price.

By printing

signal vs primary
PrintingMarketListed midDealer buy
Normalprimary
$6.54
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—

Signal compares each observation against the primary printing's recent market price.

Same name across sets

SetPrimary printingMarketSignal vs reference
Usopp's Rubber Band of Doom!!!Pillars of StrengthNormal$0.17-97%

Reference: Pillars of Strength Pre-Release Cards · Normal $6.54.