Most valuable XY - Steam Siege cards and prices
The most valuable XY - Steam Siege card is Gardevoir EX (Secret) 116/114 at about $109.93 (Near Mint, November 2, 2026). This page lists 2 popular XY - Steam Siege cards with prices and buy or sell signals.
Prices and signals
| Card | Number | Rarity | Near Mint | 30 days | Signal |
|---|---|---|---|---|---|
| Gardevoir EX (Secret) · Holofoil | 116/114 | Secret Rare | $109.93 | +1.9% | Hold |
| M Gardevoir EX (Full Art) · Holofoil | 112/114 | Ultra Rare | $57.01 | +0.2% | Hold |
Signals are estimates based on past prices, not guarantees.
About XY - Steam Siege
XY - Steam Siege is a Pokémon set from 2016. This page lists 2 of its cards.
Updated November 2, 2026 · All Pokémon sets · How Bull Run works