Which Steam Siege cards are the hardest to gem, on registry lines of 100 or more slabs, while a raw copy still buys cheaply? A low gem rate with a low ask is the trade: the tens are scarce and the raw is not priced for it.
PSA 10 share of the registry on lines of 100 or more slabs, hardest first, raw ask beside it, cards carrying a figure we publish.
| # | Card | Gem rate | PSA pop | Raw ask | PSA 10 |
|---|---|---|---|---|---|
| 1 | ![]() Azumarill#77 · Uncommon | 8.6% | 116 | $1.41condition not stated | |
| 2 | ![]() Ampharos#40 · Rare | 13% | 178 | $1.90condition not stated | |
| 3 | ![]() Bisharp#64 · Rare | 15% | 126 | $1.56condition not stated | |
| 4 | ![]() Gardevoir EX#116 · Secret Rare | 21% | 3,932 | $111 | $2,10045 comps |
| 5 | ![]() Shiftry#11 · Rare | 21% | 114 | $1.45condition not stated | |
| 6 | ![]() Steelix EX#108 · Ultra Rare | 22% | 1,807 | $18.17 | |
| 7 |
Raw is the canonical printing's TCGplayer ask, the same figure the card page shows. PSA 10 and PSA 9 are eBay sold medians verified per listing, printed with their comp counts; a premium is only computed on 10 or more PSA 10 comps.
Gem rates come from the PSA registry snapshot and are only trusted on lines of 100 or more slabs; a zero beside a real population is a provider gap and is withheld, never shown as 0%. Moves and highs come from each product's own recorded series, trimmed at the price-rule change of September 7, 2026, and ignore cards under $5.
Every figure carries its sample. A short series, a thin comp count or a small registry is printed beside the number rather than hidden, and a card that lacks the figure a reading needs is left off that reading instead of scored on a guess.

| 27% | 1,905 | $35.95 | $1,10037 comps |
| 8 | ![]() Gardevoir EX#111 · Ultra Rare | 28% | 1,932 | $28.19 | $70528 comps |
| 9 | ![]() Volcanion EX#107 · Ultra Rare | 29% | 1,097 | $9.82 |
| 10 | ![]() M Steelix EX#109 · Ultra Rare | 30% | 2,350 | $28.02 | $38534 comps |
| 11 | ![]() Magearna EX#110 · Ultra Rare | 31% | 836 | $9.59 |
| 12 | ![]() Pokémon Ranger#113 · Ultra Rare | 32% | 955 | $6.40 | $10832 comps |
| 13 | ![]() M Gardevoir EX#112 · Ultra Rare | 33% | 4,231 | $57.28 | $63564 comps |
| 14 | ![]() Professor Sycamore#114 · Ultra Rare | 34% | 1,021 | $12.71 | $15028 comps |
| 15 | ![]() M Gardevoir EX#79 · Ultra Rare | 35% | 2,759 | $23.95 | $27631 comps |
| 16 | ![]() Gardevoir EX#78 · Ultra Rare | 38% | 471 | $5.84 | $12610 comps |
| 17 | ![]() Magearna EX#75 · Ultra Rare | 38% | 255 | $1.53 | $49.5018 comps |
| 18 | ![]() Steelix EX#67 · Ultra Rare | 39% | 415 | $2.99 |
| 19 | ![]() Volcanion EX#26 · Ultra Rare | 41% | 311 | $2.78 | $75.0012 comps |
| 20 | ![]() M Steelix EX#68 · Ultra Rare | 41% | 1,285 | $10.47 | $20025 comps |
| 21 | ![]() Clawitzer BREAK#35 · Ultra Rare | 43% | 164 | $3.60 |
| 22 | ![]() Xerneas BREAK#82 · Ultra Rare | 44% | 277 | $8.29 |
| 23 | ![]() Talonflame BREAK#21 · Ultra Rare | 45% | 260 | $4.39 |
| 24 | ![]() Pyroar BREAK#24 · Ultra Rare | 46% | 223 | $3.29 | $12214 comps |
| 25 | ![]() Hydreigon BREAK#87 · Ultra Rare | 49% | 299 | $6.44 |
| 26 | ![]() Yanmega BREAK#8 · Ultra Rare | 51% | 183 | $2.93 |
| 27 | ![]() Yveltal BREAK#66 · Ultra Rare | 53% | 351 | $7.55 |