---
name: "Grenzo, Crooked Jailer"
mana_cost: "{4}{B}{R}"
cmc: 6
type_line: "Legendary Creature — Goblin Rogue"
colors: ["B", "R"]
color_identity: ["B", "R"]
keywords: ["Heist"]
set: "YOTJ"
set_name: "Alchemy: Outlaws of Thunder Junction"
collector_number: "22"
rarity: "rare"
artist: "Darren Tan"
oracle_id: "d257eb29-2a47-47f1-a6fa-21eaaf1540b1"
canonical_url: "https://avascry.com/printing/grenzo-crooked-jailer-yotj"
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"
---

# Grenzo, Crooked Jailer
- **Mana Cost:** `{4}{B}{R}` (CMC: 6)
- **Type:** Legendary Creature — Goblin Rogue
- **Power/Toughness:** 6/4
- **Keywords:** Heist

## Oracle Text
When Grenzo enters and at the beginning of your upkeep, heist target opponent's library.
Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast that you don't own with mana value 3 or less.

## Top 4096-Dim Neural Synergies
1. [Grenzo, Dungeon Warden](/printing/grenzo-dungeon-warden-plst.md) — Legendary Creature — Goblin Rogue
2. [Grenzo, Havoc Raiser](/printing/grenzo-havoc-raiser-cn2.md) — Legendary Creature — Goblin Rogue
3. [Gonti, Canny Acquisitor](/printing/gonti-canny-acquisitor-otc.md) — Legendary Creature — Aetherborn Rogue
4. [Gundabad Opportunist](/printing/gundabad-opportunist-hob.md) — Creature — Goblin Rogue
5. [Goblin Researcher](/printing/goblin-researcher-j22.md) — Creature — Goblin Wizard
6. [Gonti, Night Minister](/printing/gonti-night-minister-dft.md) — Legendary Creature — Aetherborn Rogue

## Printing Details
- **Set:** Alchemy: Outlaws of Thunder Junction (YOTJ) #22
- **Rarity:** Rare
- **Artist:** Darren Tan

## 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`