Skip to content
tallgrass

Search cards

Menu

Accounts open October 25 — every plan, including the free Trainer plan. Bookmark Tallgrass and check back soon!

Steam Siege

XY · Released August 3, 2016

Open the set
As of Nov 1, 2026Source: TCGplayer market prices (USD; CAD converted with the Oct 30, 2026 exchange rate)116 printings pricedPrice history since Sep 29, 2025

Set value

$431.59

116 / 116

Master set

$431.59

116 / 116

Without top 5

This set's value minus its 5 most valuable cards — what it costs without the outliers.

$172.50

Top 5 cards: $259.09

Set index

1D
−0.1%
7D
+0.2%
30D
—
90D
—
1Y
—

Set index

Elite+
Elite & Master feature

Full rankings, 30D / 90D / 1Y windows, filters, CSV export, the value-buy screener, deep dives and alerts are part of the paid plans.

See plans

Cost to complete (master set)

Σ of every priced regular + master printing each day. It also moves when printings gain or lose a price — the index above doesn't.

Elite+
Elite & Master feature

Full rankings, 30D / 90D / 1Y windows, filters, CSV export, the value-buy screener, deep dives and alerts are part of the paid plans.

See plans

Chase cards

Most valuable regular and master printings, with their 7-day and 30-day changes when comparable.

  1. 1Gardevoir EX 116/114Steam Siege$109.617D−0.1%30D+1.6%
  2. 2M Gardevoir EX 112/114Steam Siege$57.407D−0.6%30D+0.8%
  3. 3Volcanion EX 115/114Steam Siege$35.877D+1.4%30D−2.8%
  4. 4M Steelix EX 109/114Steam Siege$28.297D−0.2%30D−6.7%
  5. 5Gardevoir EX 111/114Steam Siege$27.927D+2.4%30D+10.4%
  6. 6M Gardevoir EX 079/114Steam Siege$23.447D+0.8%30D−2.0%
  7. 7Steelix EX 108/114Steam Siege$17.607D+0.1%30D−3.3%
  8. 8Professor Sycamore 114/114Steam Siege$13.077D−2.7%30D−5.7%
  9. 9M Steelix EX 068/114Steam Siege$10.167D−1.7%30D−7.2%
  10. 10Volcanion EX 107/114Steam Siege$9.807D+1.3%30D−7.5%

Sealed products

Every sealed product of this set with today's TCGplayer market price.

How these numbers are computed
  • Price: the TCGplayer market price (USD) of ONE printing. Never another printing or grade; unpriced stays unpriced.
  • Changes: latest price vs the same printing's price 1, 7, 30, 90 or 365 days earlier (±1 day). Both prices come from TCGplayer; a missing day is never guessed.
  • Rankings: both prices ≥ $2, latest price at most 3 days old, and moves beyond sanity caps (e.g. +200% in a day) held back for review.
  • Indexes: chain-linked, base 100 on the first tracked day. Each day's change is Σ today ÷ Σ yesterday over the printings priced on both days by the same source — new listings and source switches never move them.
  • Volatility: standard deviation of daily log price changes over 30 days (≥ 10 consecutive-day returns). Trend: least-squares slope of the log price over 30 days.
  • History started on September 29, 2025. Each window appears once both of its endpoints exist; until then it says when it will be available.

Heuristics computed from public market prices — not financial advice. Market prices are estimates, not offers.