---
target_card: Lost Days
mana_cost: "{4}{U}"
type_line: "Instant — Lesson"
algorithm: "4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings"
canonical_url: https://avascry.com/similar/lost-days
json_api: https://avascry.com/similar/lost-days.json
---

# Cards Similar & Synergistic to Lost Days

- **Target Card:** [Lost Days](https://avascry.com/printing/lost-days-tla) (Instant — Lesson) `{4}{U}`
- **Algorithm:** 4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings
- **JSON API:** https://avascry.com/similar/lost-days.json

## Top 31 Synergistic Matches

1. [**Zuko's Exile**](https://avascry.com/printing/zukos-exile-tla) `{5}` — *Instant — Lesson*
2. [**Sold Out**](https://avascry.com/printing/sold-out-tla) `{3}{B}` — *Instant*
3. [**Gone Missing**](https://avascry.com/printing/gone-missing-plst) `{4}{U}` — *Sorcery*
4. [**Fleeting Memories**](https://avascry.com/printing/fleeting-memories-sir) `{2}{U}` — *Enchantment*
5. [**Totally Lost**](https://avascry.com/printing/totally-lost-m19) `{4}{U}` — *Instant*
6. [**True Ancestry**](https://avascry.com/printing/true-ancestry-tla) `{1}{G}` — *Sorcery — Lesson*
7. [**Super-Duper Lost**](https://avascry.com/printing/super-duper-lost-unf) `{4}{U}` — *Instant*
8. [**Five Hundred Year Diary**](https://avascry.com/printing/five-hundred-year-diary-who) `{3}{U}` — *Legendary Artifact — Book Clue*
9. [**Deduce**](https://avascry.com/printing/deduce-mkm) `{1}{U}` — *Instant*
10. [**Forecasting Fortune Teller**](https://avascry.com/printing/forecasting-fortune-teller-tla) `{1}{U}` — *Creature — Human Advisor Ally*
11. [**Misleading Motes**](https://avascry.com/printing/misleading-motes-woe) `{3}{U}` — *Instant*
12. [**Tamiyo's Journal**](https://avascry.com/printing/tamiyos-journal-psoi) `{5}` — *Legendary Artifact — Book*
13. [**Lost Hours**](https://avascry.com/printing/lost-hours-fut) `{1}{B}` — *Sorcery*
14. [**Library**](https://avascry.com/printing/library-clu) `N/A` — *Land*
15. [**Nyla, Shirshu Sleuth**](https://avascry.com/printing/nyla-shirshu-sleuth-tle) `{4}{B}` — *Legendary Creature — Mole Beast*
16. [**Drownyard Explorers**](https://avascry.com/printing/drownyard-explorers-soi) `{3}{U}` — *Creature — Human Wizard*
17. [**Chronostutter**](https://avascry.com/printing/chronostutter-plst) `{5}{U}` — *Instant*
18. [**Run Out of Town**](https://avascry.com/printing/run-out-of-town-snc) `{3}{U}` — *Instant*
19. [**Secrets of the Key**](https://avascry.com/printing/secrets-of-the-key-mid) `{U}` — *Instant*
20. [**Trail of Evidence**](https://avascry.com/printing/trail-of-evidence-soi) `{2}{U}` — *Enchantment*
21. [**Lonis, Cryptozoologist**](https://avascry.com/printing/lonis-cryptozoologist-plst) `{G}{U}` — *Legendary Creature — Snake Elf Scout*
22. [**Sokka's Sword Training**](https://avascry.com/printing/sokkas-sword-training-tle) `{1}{W}` — *Instant — Lesson*
23. [**Sage of Days**](https://avascry.com/printing/sage-of-days-lci) `{2}{U}` — *Creature — Human Wizard*
24. [**Unexpectedly Absent**](https://avascry.com/printing/unexpectedly-absent-cma) `{X}{W}{W}` — *Instant*
25. [**Unlucky Drop**](https://avascry.com/printing/unlucky-drop-lci) `{3}{U}` — *Instant*
26. [**Fateful Absence**](https://avascry.com/printing/fateful-absence-mid) `{1}{W}` — *Instant*
27. [**Thraben Inspector**](https://avascry.com/printing/thraben-inspector-inr) `{W}` — *Creature — Human Soldier*
28. [**Lost in Space**](https://avascry.com/printing/lost-in-space-eoe) `{3}{U}` — *Instant*
29. [**Tolls of War**](https://avascry.com/printing/tolls-of-war-tla) `{W}{B}` — *Enchantment*
30. [**Thorough Investigation**](https://avascry.com/printing/thorough-investigation-afc) `{2}{W}` — *Enchantment*
31. [**Cunning Maneuver**](https://avascry.com/printing/cunning-maneuver-tla) `{1}{R}` — *Instant*