---
name: "Mary O'Kill"
mana_cost: "{5}{B/R}"
cmc: 6
type_line: "Legendary Creature — Human Villain"
colors: ["B", "R"]
color_identity: ["B", "R"]
keywords: []
set: "UST"
set_name: "Unstable"
collector_number: "138"
rarity: "rare"
artist: "Simon Dominic"
oracle_id: "e872821b-0f3f-49a5-a16c-a3eda9477187"
canonical_url: "https://avascry.com/printing/mary-okill-ust"
legalities:
  commander: "not_legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "not_legal"
  vintage: "not_legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Mary O'Kill
- **Mana Cost:** `{5}{B/R}` (CMC: 6)
- **Type:** Legendary Creature — Human Villain
- **Power/Toughness:** 5/5

## Oracle Text
{1}{B/R}: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)

## Top 4096-Dim Neural Synergies
1. [Switcheroo](/printing/switcheroo-bbd.md) — Sorcery
2. [Mannichi, the Fevered Dream](/printing/mannichi-the-fevered-dream-bok.md) — Legendary Creature — Spirit
3. [Transmutation](/printing/transmutation-leg.md) — Instant
4. [Phyrexian Infiltrator](/printing/phyrexian-infiltrator-inv.md) — Creature — Phyrexian Minion
5. [Inside Out](/printing/inside-out-eve.md) — Instant
6. [About Face](/printing/about-face-ulg.md) — Instant

## Printing Details
- **Set:** Unstable (UST) #138
- **Rarity:** Rare
- **Artist:** Simon Dominic
- **Total Printings:** 2 across all historical editions

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