Short answer: if you open for the most expensive card, choose Ancient Roar. That set has Roaring Moon ex SAR (around €64), the most valuable card of the pair. Future Flash is the set for you if you are looking for Altaria, the Iron Pokémon or playable cards.
Both sets were released on October 27, 2023 and together form the Paradox duo of Scarlet & Violet: Ancient Roar with Pokémon from the past, Future Flash with Pokémon from the future.
The two sets side by side
| Ancient Roar (SV4K) | Future Flash (SV4M) | |
|---|---|---|
| Theme | Paradox Pokémon from the past | Paradox Pokémon from the future |
| Figurehead | Roaring Moon ex | Iron Valiant ex |
| Most expensive card | Roaring Moon ex SAR — €64 | Altaria ex SAR — €45 |
| Number two | Mela SAR — €27 | Iron Valiant ex SAR — €21 |
| Cards in the set | 95 (66 + 29 secret) | 95 (66 + 29 secret) |
| Box contents | 30 packs × 5 cards | 30 packs × 5 cards |
| Chance of a SAR | about 1 in 6 boxes | about 1 in 6 boxes |
Values: indicative market value of single cards, ungraded. PriceCharting, as of October 21, 2026.
Where is the difference?
The structure is identical: per box about three Art Rares, four to five ex cards and usually one SR or better. The difference is in how the value is distributed.
Ancient Roar has a clear top card. Roaring Moon ex SAR is worth more than twice as much as any other card, and the trainer SARs of Mela and Professor Sada follow at a wide distance. If you are going for the chance at a real hit, you are better off here.
Future Flash has a flatter top, but stronger Art Rares: Steelix and Swablu are each worth around €8. The set also contains cards that were played in decks, such as Counter Catcher and Iron Hands ex. For players and for those who collect the Iron Pokémon, this is the more logical choice.
Why not just Paradox Rift?
In English, both sets were merged into Paradox Rift, supplemented with extra cards. That set is therefore much larger, and your chance of one specific card is smaller. The Japanese release splits the theme: if you are looking for a Roaring Moon, you only open the 'past' half. You can read more about those differences in Japanese vs English cards.
Our advice
- Going for the most expensive card? Ancient Roar.
- Do you play, or collect the Iron Pokémon? Future Flash.
- Want the complete Paradox story? Get both — they are deliberately two halves of one whole.
Keep in mind that a SAR is not a certainty in either set: on average there is one in every six boxes. Buy a box for the opening, not for the expected return. Also read pull rates of Japanese sets.
Top 10 most expensive Ancient Roar cards →
Top 10 most expensive Future Flash cards →
View Ancient Roar (SV4K) →
View Future Flash (SV4M) →
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