---
name: "Fiendish Duo"
mana_cost: "{4}{R}{R}"
cmc: 6
type_line: "Creature — Devil"
colors: ["R"]
color_identity: ["R"]
keywords: ["First strike", "Double"]
set: "J25"
set_name: "Foundations Jumpstart"
collector_number: "545"
rarity: "mythic"
artist: "Lucas Graciano"
oracle_id: "ab0dfae5-b9d4-417b-8a0d-2525ae3a73b9"
canonical_url: "https://avascry.com/printing/fiendish-duo-j25"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Fiendish Duo
- **Mana Cost:** `{4}{R}{R}` (CMC: 6)
- **Type:** Creature — Devil
- **Power/Toughness:** 5/5
- **Keywords:** First strike, Double

## Oracle Text
First strike (This creature deals combat damage before creatures without first strike.)
If a source would deal damage to an opponent, it deals double that damage to that player instead.

> *Halbe Größe, doppeltes Chaos.*

## Top 4096-Dim Neural Synergies
1. [Raging Redcap](/printing/raging-redcap-fdn.md) — Creature — Goblin Knight
2. [Absorbing Man and Titania](/printing/absorbing-man-and-titania-msc.md) — Legendary Creature — Human Villain
3. [Ridgetop Raptor](/printing/ridgetop-raptor-lgn.md) — Creature — Dinosaur Beast
4. [Stone-Throwing Devils](/printing/stone-throwing-devils-arn.md) — Creature — Devil
5. [Spiteful Prankster](/printing/spiteful-prankster-sld.md) — Creature — Devil
6. [Ticked Off](/printing/ticked-off-tmc.md) — Sorcery

## Printing Details
- **Set:** Foundations Jumpstart (J25) #545
- **Rarity:** Mythic
- **Artist:** Lucas Graciano
- **Total Printings:** 13 across all historical editions

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