---
name: "Day's Undoing"
mana_cost: "{2}{U}"
cmc: 3
type_line: "Sorcery"
colors: ["U"]
color_identity: ["U"]
keywords: []
set: "ORI"
set_name: "Magic Origins"
collector_number: "51"
rarity: "mythic"
artist: "Jonas De Ro"
oracle_id: "810a6cf5-e9f4-48e1-8e06-3e0af85633ce"
canonical_url: "https://avascry.com/printing/days-undoing-ori"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Day's Undoing
- **Mana Cost:** `{2}{U}` (CMC: 3)
- **Type:** Sorcery

## Oracle Text
Each player shuffles their hand and graveyard into their library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities from the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

## Top 4096-Dim Neural Synergies
1. [Time Reversal](/printing/time-reversal-m11.md) — Sorcery
2. [Diminishing Returns](/printing/diminishing-returns-me1.md) — Sorcery
3. [Timetwister](/printing/timetwister-2ed.md) — Sorcery
4. [Time Spiral](/printing/time-spiral-prm.md) — Sorcery
5. [The Great Aurora](/printing/the-great-aurora-ori.md) — Sorcery
6. [Winds of Change](/printing/winds-of-change-sld.md) — Sorcery

## Printing Details
- **Set:** Magic Origins (ORI) #51
- **Rarity:** Mythic
- **Artist:** Jonas De Ro
- **Total Printings:** 28 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `not_legal`