Steam Siege Card Values & Price Guide

Name: Steam Siege card values & price data
Creator: CardLedger

Steam Siege is a modern-era XY-series set from 2016 with 114 printed cards; this report tracks 17 of them with live market data.

Released 2016/08/03114 printed cards

Cards tracked

Cards priced

Median value

$12.96

Tracked total

$388.30

Cost to complete

$226.20

cheapest printings

Top card

$109.77

Gardevoir EX

By CardLedger Research · Market data updated October 26, 2026 · Prices from TCGplayer & Cardmarket

Overview

About the Steam Siege set

Released on 2016/08/03, Steam Siege anchors the XY series with 114 printed cards. The most valuable card is Gardevoir EX #116, worth $109.77 (Secret Rare).

This report prices 17 of the 17 tracked cards from live TCGplayer (USD) and Cardmarket (EUR) data, with a median card value of $12.96 and an average of $22.84.

Market

Steam Siege value distribution

How market value is spread across the set's tracked cards.

Set value index

4 days tracked · -0.4%

2026-10-15 · $389.86▼ 0.4% since 2026-10-152026-10-26 · $388.30

Index change

-0.4%

over 4 days

Off recorded high

-0.4%

Max drawdown

-0.7%

Daily volatility

0.3%

The index sums the live market value of every priced card in the set, built from our own daily snapshots.

The set's value is concentrated at the top: Gardevoir EX alone is worth $109.77, and the five most valuable cards — Gardevoir EX #116 ($109.77), M Gardevoir EX #112 ($57.74), Volcanion EX #115 ($35.60), M Steelix EX #109 ($28.39), Gardevoir EX #111 ($27.43) — carry the bulk of the $388.30 tracked total.

The median card value is $12.96 versus an average of $22.84 — a right-skewed distribution where a few chase cards pull the average up.

For collectors, the 5 cards above $27.43 are the ones worth sleeving; the rest of the set is affordable to complete raw.

Checklist

Rarity & price distribution

The tracked checklist breaks down by rarity as: 14 Ultra Rare, 2 Secret Rare, 1 Uncommon. Rarer tiers carry the highest values.

By price band, the set has 0 cards Under $1, 0 cards $1–$5, 11 cards $5–$20, 5 cards $20–$100, 1 cards $100+. 1 cards trade above $100.

Gardevoir EX is the standout chase at $109.77; the next tier down (M Gardevoir EX, Volcanion EX) forms the mid-set value layer.

Price bands

Under $10 cards · 0%

$1–$50 cards · 0%

$5–$2011 cards · 65%

$20–$1005 cards · 29%

$100+1 cards · 6%

Cost to complete

What it costs to complete Steam Siege

Cheapest-printing cost to gather every tracked Steam Siege card, broken down by rarity tier.

Rarity	Cards	Cost to complete	Share	Median
Ultra Rare	14	$137.22	61%	$10.00
Secret Rare	2	$88.48	39%	$72.69
Uncommon	1	$0.50	0%	$12.96

Affordable core vs tail

Cheapest 90% of cards$157.72

Priciest 10% (the tail)$68.48

Total to complete raw$226.20

Most of a set is cheap to collect — the last few chase cards carry most of the cost. The priciest 10% alone are 30% of the total.

Top cards

Most valuable Steam Siege cards

Ranked by live market value from TCGplayer (USD).

#	Card	Rarity	Variant	Market value	You'd net
1	Gardevoir EX #116	Secret Rare	Holofoil	$109.77	$109.77
2	M Gardevoir EX #112	Ultra Rare	Holofoil	$57.74	$57.74
3	Volcanion EX #115	Secret Rare	Holofoil	$35.60	$35.60
4	M Steelix EX #109	Ultra Rare	Holofoil	$28.39	$28.39
5	Gardevoir EX #111	Ultra Rare	Holofoil	$27.43	$27.43
6	M Gardevoir EX #79	Ultra Rare	Holofoil	$23.25	$23.25
7	Steelix EX #108	Ultra Rare	Holofoil	$17.54	$17.54
8	Professor Sycamore #114	Ultra Rare	Holofoil	$13.43	$13.43
9	Azumarill #77	Uncommon	Reverse Holofoil	$12.96	$12.96
10	M Steelix EX #68	Ultra Rare	Holofoil	$10.34	$10.34
11	Volcanion EX #107	Ultra Rare	Holofoil	$9.67	$9.67
12	Magearna EX #110	Ultra Rare	Holofoil	$9.46	$9.46

Completion tracker

How complete is your Steam Siege set?

Track your progress and the live cost of the cards you're still missing — saved in your browser, no account.

Collected

0 / 17

tracked cards

Set complete

Your value in set

—

Still to collect

$388.30

at current market

Steam Siege completion0%

Add any card from this set to start tracking your completion.

Biggest gaps

Adding a card records it in your collection at today's market value as its cost basis — adjust it on the collection page to track profit.

Price movement

Heating up in Steam Siege

Cards in this set trading furthest above their 30-day average (7-day momentum).

Magearna EX #110$9.46▲ 24.4%
Steelix EX #108$17.54▲ 20.4%
Hydreigon BREAK #87$5.62▲ 19.9%
Yveltal BREAK #66$6.72▲ 9.0%
Gardevoir EX #78$5.76▲ 2.4%
Gardevoir EX #116$109.77▼ 0.2%

Buy the dip

Cooling off in Steam Siege

Cards in this set trading furthest below their 30-day average — potential value windows.

Volcanion EX #107$9.67▼ 46.8%
Gardevoir EX #111$27.43▼ 42.0%
Volcanion EX #115$35.60▼ 28.0%
Professor Sycamore #114$13.43▼ 12.3%
Azumarill #77$12.96▼ 8.5%
Pokémon Ranger #113$6.73▼ 5.6%

FAQ

Steam Siege questions

What is the most valuable card in Steam Siege?

Gardevoir EX #116 is the set's top card, valued at $109.77 (Secret Rare). It ranks #1 of 17 priced Steam Siege cards.

How many cards are in Steam Siege?

Steam Siege contains 114 printed cards in the XY series, released 2016/08/03. This report tracks 17 of them, 17 with live prices.

What is the average Steam Siege card worth?

The median tracked value is $12.96 and the average is $22.84. The gap reflects the set's chase cards, which pull the average above the typical card.

Should I collect Steam Siege?

As a modern-era XY-series set, Steam Siege remains in active demand driven by playability and collector interest. Completing it raw is affordable at a $12.96 median, while the top chase cards carry the investment case.

Gardevoir EX

$5.76

Steam Siege

Net ≈ $5.76▲ 2.4%

Ultra RareXY

Hydreigon BREAK

$5.62

Steam Siege

Net ≈ $5.62▲ 19.9%

Ultra RareXY

Complete Steam Siege checklist (17)

Browse every Steam Siege card →More XY sets →Compare other sets →Most valuable cards →