XY · PACK EV CALCULATOR
Steam Siege
138% of pack cost covered — great value
PACK COST
VERDICT
Good Value
EV PER PACK
$6.87
Expected return
VS PACK COST
+$1.88
Above cost
HIT RATE
15.6%
1 in ~6 packs
PRICE DATA
234/234
100% coverage
VALUE SPLIT
$6.87 total EV
PULL RATE BREAKDOWN
How often each rarity tier appears in a pack
| RARITY TIER | CARDS | PULL CHANCE | AVG PRICE | EV / PACK | BEST PULL |
|---|---|---|---|---|---|
Commons & Uncommons | 133 | Filler | $0.44 | $0.10 | Azumarill$10.88 |
Rare | 46 | 55.0% | $0.61 | $0.46 | Nidoking$2.96 |
Holo Rare | 9 | 20.0% | $0.67 | $0.16 | Ampharos$1.11 |
EX / V / GX / ex | 20 | 14.0% | $5.39 | $1.22 | M Gardevoir-EX$21.01 |
Ultra Rare / Full Art | 22 | 7.0% | $15.31 | $2.54 | M Gardevoir EX (Full Art)$49.78 |
Secret Rare / Special Art | 4 | 4.0% | $59.81 | $2.39 | Gardevoir EX (Secret)$89.12 |
| Total EV / Pack | $6.87 | vs $4.99 pack · +$1.88 |
TOP PULLS
100 cards · ranked by EV contributionGardevoir EX (Secret)
$89.12
$0.89 EV
Gardevoir-EX
$82.72
$0.83 EV
M Gardevoir EX (Full Art)
$49.78
$0.37 EV
M Gardevoir-EX
$48.38
$0.36 EV
Volcanion EX (Secret)
$35.11
$0.35 EV
Volcanion-EX
$32.31
$0.32 EV
M Gardevoir-EX
$21.01
$0.24 EV
M Steelix EX (Full Art)
$26.24
$0.20 EV
M Steelix-EX
$24.81
$0.19 EV
M Gardevoir EX
$21.59
$0.16 EV
Gardevoir EX (Full Art)
$20.10
$0.15 EV
Gardevoir-EX
$19.64
$0.15 EV
Steelix EX (Full Art)
$19.08
$0.14 EV
Steelix-EX
$18.26
$0.14 EV
M Steelix-EX
$10.88
$0.12 EV
PULLED SOMETHING GOOD?
Track your card values, see daily price changes, and find out if it's worth grading — all for free.
START TRACKING FREE →
FREQUENTLY ASKED QUESTIONS
Is it worth opening Steam Siege packs?
Based on current market prices, yes — the expected value is $6.87 per pack against a $4.99 pack cost, a positive return of +$1.88 on average. Keep in mind EV is a statistical average across many packs; individual packs vary significantly.
What is the hit rate for Steam Siege packs?
About 16% — roughly 1 in 6 packs. This is the probability that your guaranteed rare slot pull is worth more than the pack cost on its own. The reverse holo slot adds additional value on top of this.
What is the best pull in Steam Siege?
The highest expected-value card in Steam Siege is Gardevoir EX (Secret), currently priced around $89.12. Chase cards like this drive most of a set's EV — a single pull can easily cover the cost of multiple packs.
How is pack expected value calculated?
Every booster pack contains a rare slot (one guaranteed rare or better) and a reverse holo slot (one random card from the set). We apply estimated pull rates to each rarity tier — Secret Rare ~4%, Ultra Rare ~7%, EX/V/ex ~14%, Holo Rare ~20%, Basic Rare ~55%. Within each tier, probability is split equally across all cards of that rarity. Each card's price is weighted by its pull probability and summed to produce the EV per pack. Pull rates are approximations based on community-verified data; actual rates vary by set print run and product type.
The Steam Siege set was released on August 3, 2016 as part of the XY series, containing 116 cards across multiple rarity tiers. At a pack price of $4.99, the estimated expected value is $6.87 per pack — a positive return of +$1.88 on average.
Use the calculator above to adjust pack cost (sealed product prices vary by retailer) and see an updated EV breakdown instantly. Prices update daily — bookmark this page to track whether Steam Siege packs become better or worse value over time as the market shifts.
Want to track cards you actually pull? Create a free PokeDen account to log your collection, monitor daily price changes, and see which cards are worth grading.