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Mega Gyarados Collection Box price
The Mega Gyarados Collection Box has a TCGplayer Market Price of $644.46 sealed as of October 20, 2026. It ranks #13 of 283 collections & boxes on our index and #3 of 9 Steam Siege sealed products. The median collection or box from the XY era is $555.00, so this one is 1.2× the typical price.
- Market price
- $644.46
- Product type
- Collection or box
- Set
- Steam Siege
- Era
- XY
- Released
- August 3, 2016
- 7-day change
- —
- 30-day change
- —
- Prices as of
- TCGplayer
- Product 177529 ↗
More Steam Siege sealed products
| Rank | Product | Market price | 7 days | 30 days |
|---|---|---|---|---|
| 1 | Steam Siege Elite Trainer BoxElite Trainer Box · Steam Siege · 2016 | $1,8007d — · 30d — | — | — |
| 2 | Steam Siege Booster BoxBooster box · Steam Siege · 2016 | $1,350$37.50 per pack · 36 packs7d — · 30d — | — | — |
| 3 | Steam Siege Single Pack Blister [Lucario]Blister · Steam Siege · 2016 | $63.787d — · 30d — | — | — |
| 4 | XY Steam Siege Sleeved Booster PackBooster pack · Steam Siege · 2016 | $38.94$38.94 per pack · 1 pack7d — · 30d — | — | — |
| 5 | Steam Siege Single Pack Blister [Floette]Blister · Steam Siege · 2016 | $37.547d — · 30d — | — | — |
| 6 | Steam Siege Booster PackBooster pack · Steam Siege · 2016 | $33.07$33.07 per pack · 1 pack7d — · 30d — | — | — |
| 7 | $22.917d — · 30d — | — | — | |
| 8 | $20.067d — · 30d — | — | — |
Other XY collections & boxes
| Rank | Product | Market price | 7 days | 30 days |
|---|---|---|---|---|
| 1 | Red & Blue Collection [Pikachu EX]Collection or box · Generations · 2016 | $2,9967d — · 30d — | — | — |
| 2 | Mega Charizard X CollectionCollection or box · Furious Fists · 2014 | $2,0007d — · 30d — | — | — |
| 3 | Red & Blue Collection [Charizard EX]Collection or box · Generations · 2016 | $1,0037d — · 30d — | — | — |
| 4 | Mythical Collection [Magearna]Collection or box · Evolutions · 2016 | $799.997d — · 30d — | — | — |
| 5 | Mythical Pokemon Collection Box [Mew]Collection or box · Generations · 2016 | $707.597d — · 30d — | — | — |
| 6 | Kanto Power Collection [Dragonite EX/Pidgeot EX]Collection or box · Evolutions · 2016 | $620.877d — · 30d — | — | — |
| 7 | Mythical Pokemon Collection Box [Shaymin]Collection or box · Generations · 2016 | $600.007d — · 30d — | — | — |
| 8 | Mega Mewtwo Collection [Mega Mewtwo X]Collection or box · BREAKthrough · 2015 | $599.007d — · 30d — | — | — |
FAQ
Mega Gyarados Collection Box: questions.
Answered from TCGplayer Market Prices as of October 20, 2026.
How much is the Mega Gyarados Collection Box worth?
The Mega Gyarados Collection Box has a TCGplayer Market Price of $644.46 sealed as of October 20, 2026.
What set is the Mega Gyarados Collection Box from, and when was it released?
It is from Steam Siege, released in English on August 3, 2016 (XY era).
Where does this price come from?
TCGplayer Market Price for the English, sealed product, the price TCGplayer calculates from recent completed sales, read daily from TCGCSV’s mirror of TCGplayer data. It is a reference, not an offer to buy or sell.