---
target_card: Shield of Duty and Reason
mana_cost: "{W}"
type_line: "Enchantment — Aura"
algorithm: "4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings"
canonical_url: https://avascry.com/similar/shield-of-duty-and-reason
json_api: https://avascry.com/similar/shield-of-duty-and-reason.json
---

# Cards Similar & Synergistic to Shield of Duty and Reason

- **Target Card:** [Shield of Duty and Reason](https://avascry.com/printing/shield-of-duty-and-reason-apc) (Enchantment — Aura) `{W}`
- **Algorithm:** 4096-dimensional Qwen 8B Cosine Similarity over 38,000 Oracle embeddings
- **JSON API:** https://avascry.com/similar/shield-of-duty-and-reason.json

## Top 31 Synergistic Matches

1. [**Green Ward**](https://avascry.com/printing/green-ward-lea) `{W}` — *Enchantment — Aura*
2. [**Blue Ward**](https://avascry.com/printing/blue-ward-ced) `{W}` — *Enchantment — Aura*
3. [**White Ward**](https://avascry.com/printing/white-ward-30a) `{W}` — *Enchantment — Aura*
4. [**Spectra Ward**](https://avascry.com/printing/spectra-ward-m15) `{3}{W}{W}` — *Enchantment — Aura*
5. [**Flickering Ward**](https://avascry.com/printing/flickering-ward-soc) `{W}` — *Enchantment — Aura*
6. [**Floating Shield**](https://avascry.com/printing/floating-shield-tor) `{2}{W}` — *Enchantment — Aura*
7. [**Black Ward**](https://avascry.com/printing/black-ward-lea) `{W}` — *Enchantment — Aura*
8. [**Mask of Law and Grace**](https://avascry.com/printing/mask-of-law-and-grace-uds) `{W}` — *Enchantment — Aura*
9. [**Pledge of Loyalty**](https://avascry.com/printing/pledge-of-loyalty-plst) `{1}{W}` — *Enchantment — Aura*
10. [**Guildscorn Ward**](https://avascry.com/printing/guildscorn-ward-gtc) `{W}` — *Enchantment — Aura*
11. [**Crown of Awe**](https://avascry.com/printing/crown-of-awe-ons) `{1}{W}` — *Enchantment — Aura*
12. [**Pentarch Ward**](https://avascry.com/printing/pentarch-ward-tsp) `{2}{W}` — *Enchantment — Aura*
13. [**Red Ward**](https://avascry.com/printing/red-ward-2ed) `{W}` — *Enchantment — Aura*
14. [**Benevolent Blessing**](https://avascry.com/printing/benevolent-blessing-cmr) `{1}{W}` — *Enchantment — Aura*
15. [**Cho-Manno's Blessing**](https://avascry.com/printing/cho-mannos-blessing-mmq) `{W}{W}` — *Enchantment — Aura*
16. [**Unquestioned Authority**](https://avascry.com/printing/unquestioned-authority-plst) `{2}{W}` — *Enchantment — Aura*
17. [**Shielding Plax**](https://avascry.com/printing/shielding-plax-uma) `{2}{G/U}` — *Enchantment — Aura*
18. [**Guard Duty**](https://avascry.com/printing/guard-duty-ima) `{W}` — *Enchantment — Aura*
19. [**Stave Off**](https://avascry.com/printing/stave-off-m12) `{W}` — *Instant*
20. [**Spectral Shield**](https://avascry.com/printing/spectral-shield-me3) `{1}{W}{U}` — *Enchantment — Aura*
21. [**Midvast Protector**](https://avascry.com/printing/midvast-protector-avr) `{3}{W}` — *Creature — Human Wizard*
22. [**Prismatic Ward**](https://avascry.com/printing/prismatic-ward-5ed) `{1}{W}` — *Enchantment — Aura*
23. [**Shield of the Oversoul**](https://avascry.com/printing/shield-of-the-oversoul-plst) `{2}{G/W}` — *Enchantment — Aura*
24. [**Shielded by Faith**](https://avascry.com/printing/shielded-by-faith-e02) `{1}{W}{W}` — *Enchantment — Aura*
25. [**Mother of Runes**](https://avascry.com/printing/mother-of-runes-ulg) `{W}` — *Creature — Human Cleric*
26. [**Guardian of the Guildpact**](https://avascry.com/printing/guardian-of-the-guildpact-dis) `{3}{W}` — *Creature — Spirit*
27. [**Ward of Lights**](https://avascry.com/printing/ward-of-lights-mir) `{W}{W}` — *Enchantment — Aura*
28. [**Shelter**](https://avascry.com/printing/shelter-j21) `{1}{W}` — *Instant*
29. [**Holy Mantle**](https://avascry.com/printing/holy-mantle-gtc) `{2}{W}{W}` — *Enchantment — Aura*
30. [**Spirit Mantle**](https://avascry.com/printing/spirit-mantle-plst) `{1}{W}` — *Enchantment — Aura*
31. [**Earnest Fellowship**](https://avascry.com/printing/earnest-fellowship-ody) `{1}{W}` — *Enchantment*