Obsidian Flames Pokemon ex Pull Rate — 16.70% per pack (1 in 6)
16.70% of Obsidian Flames booster packs contain a Pokemon ex card — roughly 1 in 6 packs. Obsidian Flames ships 21 Pokemon ex cards in the pool, so the chance of pulling any specific Pokemon ex is 0.0080 (≈1 in 126). These percentages come from PackRip's own rate table (the same constants the simulator runs on) — they are a model of the product, not a measurement of it. The Pokemon Company has never published pull rates.
Obsidian Flames Pokemon ex pull-rate methodology
| Formula | Tier odds = 16.70% per pack; per-card odds = tier odds ÷ 21 Pokemon ex cards = 1 in 126. |
|---|---|
| Assumptions | One independent rare-slot roll per pack; uniform selection within the tier; no pity timers, box mapping, short-print correction, or edition/condition split. |
| Data source | Set checklist and rarity labels from the bundled Pokemon TCG API catalog; tier rates from rareSlotRates(), mirrored from the live pack opener. |
| Update cadence | Regenerated by prerender whenever set metadata, catalog data, or pull-rate constants change. |
| Limitations | This is a theoretical per-pack rate. Real sealed product can show print-run variance, collation quirks, and market-specific edition differences. |
Pokemon ex cards in Obsidian Flames
| # | Card | TCGplayer market | Per-card odds |
|---|---|---|---|
| 1 | Charizard ex #125 | $5.44 | 1 in 126 |
| 2 | Dragonite ex #159 | $3.47 | 1 in 126 |
| 3 | Tyranitar ex #66 | $1.53 | 1 in 126 |
| 4 | Clefable ex #82 | $1.39 | 1 in 126 |
| 5 | Absol ex #135 | $1.33 | 1 in 126 |
| 6 | Pidgeot ex #164 | $1.32 | 1 in 126 |
| 7 | Houndoom ex #134 | $1.15 | 1 in 126 |
| 8 | Decidueye ex #15 | $1.13 | 1 in 126 |
| 9 | Miraidon ex #79 | $1.04 | 1 in 126 |
| 10 | Victini ex #33 | $1.02 | 1 in 126 |
| 11 | Melmetal ex #153 | $0.99 | 1 in 126 |
| 12 | Houndstone ex #102 | $0.97 | 1 in 126 |
| 13 | Eiscue ex #42 | $0.96 | 1 in 126 |
| 14 | Vespiquen ex #96 | $0.92 | 1 in 126 |
| 15 | Toedscruel ex #22 | $0.82 | 1 in 126 |
| 16 | Koraidon ex #124 | $0.81 | 1 in 126 |
| 17 | Greedent ex #179 | $0.81 | 1 in 126 |
| 18 | Revavroom ex #156 | $0.78 | 1 in 126 |
| 19 | Klawf ex #120 | $0.75 | 1 in 126 |
| 20 | Pawmot ex #73 | $0.72 | 1 in 126 |
| 21 | Glimmora ex #123 | $0.70 | 1 in 126 |
How the 16.70% rate is computed
Every Obsidian Flames booster pack rolls one rare-slot card (plus uncommons, commons, and energy in fixed slots). The rare slot is itself a weighted random draw across 6 tiers — Rare, Holo Rare, Pokemon ex, and the era's other chase rarities. The Pokemon ex tier captures 16.70% of those rare-slot draws (= 16.70 packs out of every 100). Within the Pokemon ex tier, all 21 cards share the slot uniformly, so per-card odds are 16.70% ÷ 21 = 0.0080 = 1 in 126.
This is the same math PackRip's live Obsidian Flames simulator uses to roll packs — open as many as you want for free, watch the empirical hit rate converge to the theoretical 16.70% over a large enough sample. Source code lives in src/utils/packGenerator.ts and the per-rarity drift is build-time-asserted against the published rates so the simulator and this landing page can never disagree.
Cumulative probability — how many packs to hit Pokemon ex
Pokemon ex pulls follow a geometric distribution with per-pack rate 0.167000. The expected number of packs until your first Pokemon ex hit is 6; at 95% confidence you'll have one within 17 packs. Most experienced openers crack a sealed booster box (36 packs) and hit Pokemon ex with probability 99.9% — so the average box yields just over 6.0 Pokemon ex pulls.
Related on PackRip
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- Obsidian Flames per-pack expected value
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- Every Pokemon ex card across all 140 booster sets