---
target_card: Night of Souls' Betrayal
mana_cost: "{2}{B}{B}"
type_line: "Legendary Enchantment"
algorithm: "4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings"
canonical_url: https://avascry.com/similar/night-of-souls-betrayal
json_api: https://avascry.com/similar/night-of-souls-betrayal.json
---

# Cards Similar & Synergistic to Night of Souls' Betrayal

- **Target Card:** [Night of Souls' Betrayal](https://avascry.com/printing/night-of-souls-betrayal-ha6) (Legendary Enchantment) `{2}{B}{B}`
- **Algorithm:** 4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings
- **JSON API:** https://avascry.com/similar/night-of-souls-betrayal.json

## Top 31 Synergistic Matches

1. [**Infest**](https://avascry.com/printing/infest-prm) `{1}{B}{B}` — *Sorcery*
2. [**Shrivel**](https://avascry.com/printing/shrivel-m14) `{1}{B}` — *Sorcery*
3. [**Languish**](https://avascry.com/printing/languish-pori) `{2}{B}{B}` — *Sorcery*
4. [**Hell Swarm**](https://avascry.com/printing/hell-swarm-leg) `{B}` — *Instant*
5. [**Nausea**](https://avascry.com/printing/nausea-ema) `{1}{B}` — *Sorcery*
6. [**Darkness Descends**](https://avascry.com/printing/darkness-descends-ecl) `{2}{B}{B}` — *Sorcery*
7. [**Glistening Deluge**](https://avascry.com/printing/glistening-deluge-mom) `{1}{B}{B}` — *Sorcery*
8. [**Mutilate**](https://avascry.com/printing/mutilate-gvl) `{2}{B}{B}` — *Sorcery*
9. [**Harbinger of Night**](https://avascry.com/printing/harbinger-of-night-mir) `{2}{B}{B}` — *Creature — Spirit*
10. [**Kaervek, the Spiteful**](https://avascry.com/printing/kaervek-the-spiteful-prm) `{2}{B}{B}` — *Legendary Creature — Human Warlock*
11. [**The Black Breath**](https://avascry.com/printing/the-black-breath-ltr) `{2}{B}` — *Sorcery*
12. [**Dread of Night**](https://avascry.com/printing/dread-of-night-6ed) `{B}` — *Enchantment*
13. [**Festergloom**](https://avascry.com/printing/festergloom-cn2) `{2}{B}` — *Sorcery*
14. [**Yahenni's Expertise**](https://avascry.com/printing/yahennis-expertise-paer) `{2}{B}{B}` — *Sorcery*
15. [**Illness in the Ranks**](https://avascry.com/printing/illness-in-the-ranks-gtc) `{B}` — *Enchantment*
16. [**Darkest Hour**](https://avascry.com/printing/darkest-hour-usg) `{B}` — *Enchantment*
17. [**Marsh Gas**](https://avascry.com/printing/marsh-gas-drk) `{B}` — *Instant*
18. [**Arms of Hadar**](https://avascry.com/printing/arms-of-hadar-clb) `{3}{B}` — *Sorcery*
19. [**Make Obsolete**](https://avascry.com/printing/make-obsolete-klr) `{2}{B}` — *Instant*
20. [**Malicious Eclipse**](https://avascry.com/printing/malicious-eclipse-lci) `{1}{B}{B}` — *Sorcery*
21. [**Stench of Decay**](https://avascry.com/printing/stench-of-decay-all) `{1}{B}{B}` — *Instant*
22. [**Black Sun's Zenith**](https://avascry.com/printing/black-suns-zenith-mbs) `{X}{B}{B}` — *Sorcery*
23. [**Cloudkill**](https://avascry.com/printing/cloudkill-clb) `{4}{B}{B}` — *Sorcery*
24. [**Ghosts of the Damned**](https://avascry.com/printing/ghosts-of-the-damned-leg) `{1}{B}{B}` — *Creature — Spirit*
25. [**Sick and Tired**](https://avascry.com/printing/sick-and-tired-ulg) `{2}{B}` — *Instant*
26. [**Cower in Fear**](https://avascry.com/printing/cower-in-fear-mm3) `{1}{B}{B}` — *Instant*
27. [**Final Revels**](https://avascry.com/printing/final-revels-lrw) `{4}{B}` — *Sorcery*
28. [**Witch's Vengeance**](https://avascry.com/printing/witchs-vengeance-peld) `{1}{B}{B}` — *Sorcery*
29. [**Soul Snuffers**](https://avascry.com/printing/soul-snuffers-eve) `{2}{B}{B}` — *Creature — Elemental Shaman*
30. [**Malicious Malfunction**](https://avascry.com/printing/malicious-malfunction-neo) `{1}{B}{B}` — *Sorcery*
31. [**Stronghold Taskmaster**](https://avascry.com/printing/stronghold-taskmaster-sth) `{2}{B}{B}` — *Creature — Giant Minion*