---
name: "Gravelgill Duo"
mana_cost: "{2}{U/B}"
cmc: 3
type_line: "Creature — Merfolk Rogue Warrior"
colors: ["B", "U"]
color_identity: ["B", "U"]
keywords: []
set: "SHM"
set_name: "Shadowmoor"
collector_number: "165"
rarity: "common"
artist: "Brandon Kitkouski"
oracle_id: "a9e28134-382b-45e5-8fd0-cc0e7d56fd0c"
canonical_url: "https://avascry.com/printing/gravelgill-duo-shm"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "legal"
  penny: "legal"
---

# Gravelgill Duo
- **Mana Cost:** `{2}{U/B}` (CMC: 3)
- **Type:** Creature — Merfolk Rogue Warrior
- **Power/Toughness:** 2/1

## Oracle Text
Whenever you cast a blue spell, this creature gets +1/+1 until end of turn.
Whenever you cast a black spell, this creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

## Top 4096-Dim Neural Synergies
1. [Inkfathom Witch](/printing/inkfathom-witch-pca.md) — Creature — Merfolk Wizard
2. [Spiderwig Boggart](/printing/spiderwig-boggart-lrw.md) — Creature — Goblin Shaman
3. [Aphotic Wisps](/printing/aphotic-wisps-shm.md) — Instant
4. [Hooded Kavu](/printing/hooded-kavu-inv.md) — Creature — Kavu
5. [Prickly Boggart](/printing/prickly-boggart-mor.md) — Creature — Goblin Rogue
6. [Smogsteed Rider](/printing/smogsteed-rider-gpt.md) — Creature — Human Wizard

## Printing Details
- **Set:** Shadowmoor (SHM) #165
- **Rarity:** Common
- **Artist:** Brandon Kitkouski
- **Total Printings:** 9 across all historical editions

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