---
name: "Blu, Mansion Prince"
mana_cost: "{3}{U}"
cmc: 4
type_line: "Legendary Creature — Human Noble"
colors: ["U"]
color_identity: ["U"]
keywords: ["Investigate"]
set: "UNK"
set_name: "Unknown Event"
collector_number: "RU04d"
rarity: "rare"
artist: ""
oracle_id: "5d179680-96b8-42f7-97bb-ba9121f2c19d"
canonical_url: "https://avascry.com/printing/blu-mansion-prince-unk"
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"
---

# Blu, Mansion Prince
- **Mana Cost:** `{3}{U}` (CMC: 4)
- **Type:** Legendary Creature — Human Noble
- **Power/Toughness:** 2/3
- **Keywords:** Investigate

## Oracle Text
Whenever this creature enters or attacks, investigate.
Whenever you sacrifice a Clue, choose a Room card at random. Create a token that's a copy of one of its halves, then unlock it. (There are currently 30 Room cards.)

## Top 4096-Dim Neural Synergies
1. [Drownyard Explorers](/printing/drownyard-explorers-soi.md) — Creature — Human Wizard
2. [Thorough Investigation](/printing/thorough-investigation-afc.md) — Enchantment
3. [Thraben Inspector](/printing/thraben-inspector-inr.md) — Creature — Human Soldier
4. [Serene Sleuth](/printing/serene-sleuth-mkc.md) — Creature — Human Detective
5. [Novice Inspector](/printing/novice-inspector-mkm.md) — Creature — Human Detective
6. [Search the Premises](/printing/search-the-premises-mkc.md) — Enchantment

## Printing Details
- **Set:** Unknown Event (UNK) #RU04d
- **Rarity:** Rare
- **Artist:** 

## 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`