Yu-Gi-Oh!
Caius the Shadow Monarch
Quarter Century Bonanza · 194qsec · Quarter Century Secret Rare
Current UK price · near mint
£32.50▲ 17.0%
As of 2026-05-25 · folio price index · last 7 days
About this card
Caius the Shadow Monarch is a Quarter Century Secret Rare from Quarter Century Bonanza, 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.