# Cards Similar & Synergistic to Day's Undoing
- **Target Card:** Day's Undoing (Sorcery) `{2}{U}`
- **Algorithm:** Cosine similarity over 38,000 Oracle vector embeddings

## Top Synergistic Matches

1. **Time Reversal** `{3}{U}{U}` — Sorcery
2. **Diminishing Returns** `{2}{U}{U}` — Sorcery
3. **Timetwister** `{2}{U}` — Sorcery
4. **Time Spiral** `{4}{U}{U}` — Sorcery
5. **The Great Aurora** `{6}{G}{G}{G}` — Sorcery
6. **Winds of Change** `{R}` — Sorcery
7. **Worldpurge** `{4}{W/U}{W/U}{W/U}{W/U}` — Sorcery
8. **Do-Over** `{1}{U}` — Instant
9. **Echo of Eons** `{4}{U}{U}` — Sorcery
10. **Wheel of Fortune** `{2}{R}` — Sorcery
11. **Turtles in Time** `{5}{U}{U}` — Sorcery
12. **Emergency Powers** `{5}{W}{U}` — Instant
13. **Sway of the Stars** `{8}{U}{U}` — Sorcery
14. **Mnemonic Nexus** `{3}{U}` — Instant
15. **Step Between Worlds** `{3}{U}{U}` — Sorcery
16. **Undo** `{1}{U}{U}` — Sorcery
17. **Clear the Mind** `{2}{U}` — Sorcery
18. **Hurkyl's Final Meditation** `{4}{U}{U}{U}` — Instant
19. **Temporal Cascade** `{5}{U}{U}` — Sorcery
20. **Upheaval** `{4}{U}{U}` — Sorcery
21. **Once More with Feeling** `{W}{W}{W}{W}` — Sorcery
22. **Ultima** `{3}{W}{W}` — Sorcery
23. **Reminisce** `{2}{U}` — Sorcery
24. **Dark Deal** `{2}{B}` — Sorcery
25. **Learn from the Past** `{3}{U}` — Instant
26. **Magus of the Jar** `{3}{U}{U}` — Creature — Human Wizard
27. **Sundial of the Infinite** `{2}` — Artifact
28. **Jace's Archivist** `{1}{U}{U}` — Creature — Vedalken Wizard
29. **Rite of Undoing** `{4}{U}` — Instant
30. **Paradigm Shift** `{1}{U}` — Sorcery
31. **Flux** `{2}{U}` — Sorcery