Yu-Gi-Oh! · 6 priced cards · prices updated October 2026
Every priced card in World Championship 2004: GBA Promo, with its TCGplayer Near Mint market price and our model's 1-month price forecast. The set's priced cards total $187.72; the most valuable is Valkyrion the Magna Warrior at $69.91. Click any card for its full price history, graded ladder and forecast track record, or browse this set in the interactive catalog.
| Card | Rarity | NM price | 1M forecast | Implied |
|---|---|---|---|---|
| Valkyrion the Magna Warrior | Prismatic Secret Rare | $69.91 | $67.29 | -3.7% |
| Harpie's Feather Duster | Prismatic Secret Rare | $50.23 | $50.62 | +0.8% |
| Sinister Serpent | Prismatic Secret Rare | $42.52 | $43.32 | +1.9% |
| Kinetic Soldier | Secret Rare | $15.31 | $15.45 | +0.9% |
| Slate Warrior | Secret Rare | $6.72 | $6.88 | +2.4% |
| Fairy King Truesdale | Super Rare | $3.03 | $3.13 | +3.3% |