---
target_card: River Song's Diary
mana_cost: "{3}"
type_line: "Artifact — Book"
algorithm: "4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings"
canonical_url: https://avascry.com/similar/river-songs-diary
json_api: https://avascry.com/similar/river-songs-diary.json
---

# Cards Similar & Synergistic to River Song's Diary

- **Target Card:** [River Song's Diary](https://avascry.com/printing/river-songs-diary-who) (Artifact — Book) `{3}`
- **Algorithm:** 4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings
- **JSON API:** https://avascry.com/similar/river-songs-diary.json

## Top 31 Synergistic Matches

1. [**Panoptic Mirror**](https://avascry.com/printing/panoptic-mirror-dst) `{5}` — *Artifact*
2. [**Knowledge Pool**](https://avascry.com/printing/knowledge-pool-mbs) `{6}` — *Artifact*
3. [**Spellweaver Helix**](https://avascry.com/printing/spellweaver-helix-mrd) `{3}` — *Artifact*
4. [**Isochron Scepter**](https://avascry.com/printing/isochron-scepter-2xm) `{2}` — *Artifact*
5. [**Chrome Mox**](https://avascry.com/printing/chrome-mox-2xm) `{0}` — *Artifact*
6. [**Summoner's Egg**](https://avascry.com/printing/summoners-egg-5dn) `{4}` — *Artifact Creature — Egg*
7. [**Semblance Anvil**](https://avascry.com/printing/semblance-anvil-som) `{3}` — *Artifact*
8. [**Exclusion Ritual**](https://avascry.com/printing/exclusion-ritual-nph) `{4}{W}{W}` — *Enchantment*
9. [**Ice Cauldron**](https://avascry.com/printing/ice-cauldron-ice) `{4}` — *Artifact*
10. [**Wizard's Spellbook**](https://avascry.com/printing/wizards-spellbook-pafr) `{5}{U}{U}` — *Artifact — Book*
11. [**Myr Welder**](https://avascry.com/printing/myr-welder-mbs) `{3}` — *Artifact Creature — Myr*
12. [**Spellbinder**](https://avascry.com/printing/spellbinder-dst) `{3}` — *Artifact — Equipment*
13. [**Soul Foundry**](https://avascry.com/printing/soul-foundry-mrd) `{4}` — *Artifact*
14. [**Compleated Clone Shell**](https://avascry.com/printing/compleated-clone-shell-unk) `{5}` — *Artifact Creature — Phyrexian Shapeshifter*
15. [**Kyren Archive**](https://avascry.com/printing/kyren-archive-mmq) `{3}` — *Artifact — Book*
16. [**Idris, Soul of the TARDIS**](https://avascry.com/printing/idris-soul-of-the-tardis-who) `{1}{U}{R}` — *Legendary Creature — Human Incarnation*
17. [**Thought Prison**](https://avascry.com/printing/thought-prison-mrd) `{5}` — *Artifact*
18. [**Rod of Absorption**](https://avascry.com/printing/rod-of-absorption-afc) `{2}{U}` — *Artifact*
19. [**Extraplanar Lens**](https://avascry.com/printing/extraplanar-lens-mrd) `{3}` — *Artifact*
20. [**Codie, Vociferous Codex**](https://avascry.com/printing/codie-vociferous-codex-pstx) `{3}` — *Legendary Artifact Creature — Book Construct*
21. [**Shell of the Last Kappa**](https://avascry.com/printing/shell-of-the-last-kappa-chk) `{3}` — *Legendary Artifact*
22. [**Clone Shell**](https://avascry.com/printing/clone-shell-2xm) `{5}` — *Artifact Creature — Shapeshifter*
23. [**Impulsivity**](https://avascry.com/printing/impulsivity-ecc) `{6}{R}` — *Creature — Elemental Incarnation*
24. [**Signature Spells**](https://avascry.com/printing/signature-spells-hbg) `{4}{U}{U}` — *Enchantment*
25. [**Prototype Portal**](https://avascry.com/printing/prototype-portal-som) `{4}` — *Artifact*
26. [**Goliath Daydreamer**](https://avascry.com/printing/goliath-daydreamer-ecl) `{2}{R}{R}` — *Creature — Giant Wizard*
27. [**Memory Vessel**](https://avascry.com/printing/memory-vessel-big) `{3}{R}{R}` — *Artifact*
28. [**Release to the Wind**](https://avascry.com/printing/release-to-the-wind-prix) `{2}{U}` — *Instant*
29. [**Act on Impulse**](https://avascry.com/printing/act-on-impulse-j22) `{2}{R}` — *Sorcery*
30. [**Ugin's Labyrinth**](https://avascry.com/printing/ugins-labyrinth-mh3) `N/A` — *Land*
31. [**Elite Arcanist**](https://avascry.com/printing/elite-arcanist-m14) `{3}{U}` — *Creature — Human Wizard*