Yu-Gi-Oh!
Frontline Observer
Secrets of Eternity · 039 · Rare
Current UK price · near mint
£0.04· 0.0%
As of 2026-05-23 · folio price index · last 7 days
About this card
Frontline Observer is a Rare from Secrets of Eternity, part of the Yu-Gi-Oh! trading card game. Track its price, watch its history, and manage your full TCG collection — across 13 games and counting — with folio. Built by collectors, for collectors.