Mega Gyarados Collection Box
XY - Steam Siege · Pokemon sealed
as of October 13, 2026
30-day trend
Tracked daily since July 9, 2025
Mega Gyarados Collection Box is a XY - Steam Siege product from Pokemon. As of October 13, 2026, it is priced at $769.99 and has held roughly flat over the past 30 days. Year-to-date, it has risen 17.6%. TCGstacker has tracked its price daily since July 9, 2025.
Part of XY - Steam Siege
Browse all XY - Steam Siege pricesMore from XY - Steam Siege
- Steam Siege Elite Trainer Box$1,800.00
- Steam Siege Booster Box$1,506.99
- Battle Heart Tin [Pikachu EX]$499.99
- Battle Heart Tin [Volcanion EX]$450.00
- Battle Heart Tin [Magearna EX]$375.00
- Battle Arena Decks: Keldeo EX vs Rayquaza EX$299.97
- Steam Siege Prerelease Kit$160.32
- Steam Siege Sleeved Booster Pack Art Bundle [Set of 4]$139.49
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About this data
Prices shown here are market prices, sourced from TCGplayer data. TCGstacker has tracked sealed product price history since 2024. This page shows the free tier of our data — create a free account to unlock top movers, tier lists, and market indexes.