XY series
Steam Siege Pokémon Cards UK: Products & Card List
- Released
- 3 August 2016
- Cards
- 116
- Set code
- STS
Steam Siege sealed products
Steam Siege is out of print, so we do not expect to stock its sealed products new.
The Steam Siege cards everyone is chasing
The most valuable cards in the set, the ones that make a box worth opening. Values are for a clean, ungraded copy.
Gardevoir-EX
#116 · Rare Secret
$126 · about £94.48
PSA 10: $2,080
M Gardevoir-EX
#112 · Rare Ultra
$48.38 · about £36.28
PSA 10: $600
Volcanion-EX
#115 · Rare Secret
$42.40 · about £31.80
PSA 10: $1,100
M Steelix-EX
#109 · Rare Ultra
$29.99 · about £22.49
PSA 10: $599
Gardevoir-EX
#111 · Rare Ultra
$24.99 · about £18.74
PSA 10: $596
M Gardevoir-EX
#79 · Rare Holo EX
$20.26 · about £15.19
PSA 10: $240
Steelix-EX
#108 · Rare Ultra
$19.70 · about £14.77
PSA 10: $1,500
Professor Sycamore
#114 · Rare Ultra
$12.20 · about £9.15
PSA 10: $160
M Steelix-EX
#68 · Rare Holo EX
$9.99 · about £7.49
PSA 10: $194
Volcanion-EX
#107 · Rare Ultra
$9.89 · about £7.42
PSA 10: $704
Magearna-EX
#110 · Rare Ultra
$9.06 · about £6.79
PSA 10: $331
Xerneas BREAK
#82 · Rare BREAK
$7.57 · about £5.68
PSA 10: $138
US market values via CardTrack, checked 18 October 2026, converted at that day's rate. They show what the cards change hands for in the United States, not what we will charge.
About Steam Siege
Steam Siege is an English Pokémon set in the XY series released on 3 August 2016, with 116 cards. The sealed products from the set we expect to carry are listed below, and singles can be requested by email. Nothing is on sale until the shop opens; use the alert on any product and we will email you once, when it arrives.
Hear when Steam Siege products arrive
Sealed products and singles from this set, once we hold them. One email, nothing else. For specific cards, email us the names and numbers and we will reply when we have them.
Opens an email to hello@tcgemporium.com. One reply when it lands. No newsletter.
