---
target_card: X, Mystery Racer
mana_cost: "{3}{U}{B}"
type_line: "Legendary Creature — Human Spy"
algorithm: "4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings"
canonical_url: https://avascry.com/similar/x-mystery-racer
json_api: https://avascry.com/similar/x-mystery-racer.json
---

# Cards Similar & Synergistic to X, Mystery Racer

- **Target Card:** [X, Mystery Racer](https://avascry.com/printing/x-mystery-racer-unk) (Legendary Creature — Human Spy) `{3}{U}{B}`
- **Algorithm:** 4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings
- **JSON API:** https://avascry.com/similar/x-mystery-racer.json

## Top 31 Synergistic Matches

1. [**X**](https://avascry.com/printing/x-ulst) `{U}{B}` — *Legendary Creature — Human Spy*
2. [**Defective Detective**](https://avascry.com/printing/defective-detective-ust) `{2}{U}` — *Creature — Human Spy*
3. [**Sly Spy**](https://avascry.com/printing/sly-spy-ust) `{2}{B}` — *Creature — Human Spy*
4. [**Telepathic Spies**](https://avascry.com/printing/telepathic-spies-7ed) `{2}{U}` — *Creature — Human Wizard*
5. [**Stromgald Spy**](https://avascry.com/printing/stromgald-spy-all) `{3}{B}` — *Creature — Human Rogue*
6. [**Xantcha, Sleeper Agent**](https://avascry.com/printing/xantcha-sleeper-agent-slc) `{1}{B}{R}` — *Legendary Creature — Phyrexian Minion*
7. [**Sly Spy**](https://avascry.com/printing/sly-spy-ust) `{2}{B}` — *Creature — Human Spy*
8. [**Mesmeric Fiend**](https://avascry.com/printing/mesmeric-fiend-ddk) `{1}{B}` — *Creature — Nightmare Horror*
9. [**Sen Triplets**](https://avascry.com/printing/sen-triplets-2xm) `{2}{W}{U}{B}` — *Legendary Artifact Creature — Human Wizard*
10. [**Xanathar, Guild Kingpin**](https://avascry.com/printing/xanathar-guild-kingpin-sld) `{4}{U}{B}` — *Legendary Creature — Beholder*
11. [**Opposition Agent**](https://avascry.com/printing/opposition-agent-cmr) `{2}{B}` — *Creature — Human Rogue*
12. [**Gastal Raider**](https://avascry.com/printing/gastal-raider-dft) `{2}{B}` — *Creature — Vampire Rogue*
13. [**Enigma Thief**](https://avascry.com/printing/enigma-thief-znc) `{5}{U}{U}` — *Creature — Sphinx Rogue*
14. [**Thoughtcutter Agent**](https://avascry.com/printing/thoughtcutter-agent-ala) `{U}{B}` — *Artifact Creature — Human Rogue*
15. [**The Magic Bandit**](https://avascry.com/printing/the-magic-bandit-unk) `{3}{B}` — *Legendary Creature — Human Rogue*
16. [**Acquisitions Expert**](https://avascry.com/printing/acquisitions-expert-znr) `{1}{B}` — *Creature — Human Rogue*
17. [**Agent of Treachery**](https://avascry.com/printing/agent-of-treachery-sld) `{5}{U}{U}` — *Creature — Human Rogue*
18. [**Unscrupulous Agent**](https://avascry.com/printing/unscrupulous-agent-mkm) `{1}{B}` — *Creature — Elf Detective*
19. [**Sorcerous Spyglass**](https://avascry.com/printing/sorcerous-spyglass-fdn) `{2}` — *Artifact*
20. [**Sly Spy**](https://avascry.com/printing/sly-spy-ust) `{2}{B}` — *Creature — Human Spy*
21. [**Sly Spy**](https://avascry.com/printing/sly-spy-ust) `{2}{B}` — *Creature — Human Spy*
22. [**Wanderguard Sentry**](https://avascry.com/printing/wanderguard-sentry-9ed) `{4}{U}` — *Creature — Drone*
23. [**Agent of Raffine**](https://avascry.com/printing/agent-of-raffine-ysnc) `{U}` — *Creature — Human Rogue*
24. [**Ingenious Thief**](https://avascry.com/printing/ingenious-thief-s99) `{1}{U}` — *Creature — Human Rogue*
25. [**Wu Spy**](https://avascry.com/printing/wu-spy-ptk) `{1}{U}` — *Creature — Human Soldier Rogue*
26. [**Nimble Larcenist**](https://avascry.com/printing/nimble-larcenist-snc) `{W}{U}{B}` — *Creature — Bird Rogue*
27. [**Sly Spy**](https://avascry.com/printing/sly-spy-ust) `{2}{B}` — *Creature — Human Spy*
28. [**Captivating Crew**](https://avascry.com/printing/captivating-crew-otc) `{3}{R}` — *Creature — Human Pirate*
29. [**Exit Specialist**](https://avascry.com/printing/exit-specialist-mkm) `{1}{U}` — *Creature — Human Detective*
30. [**Thought-Knot Seer**](https://avascry.com/printing/thought-knot-seer-spg) `{3}{C}` — *Creature — Eldrazi*
31. [**Magus of the Unseen**](https://avascry.com/printing/magus-of-the-unseen-5ed) `{1}{U}` — *Creature — Human Wizard*