First printed in Forgotten Realms Commander (2021)
All 4 prints
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Commander Masters (CMM) #221, 2023
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Alchemy Horizons: Baldur's Gate (HBG) #182, 2022 (digital)
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Forgotten Realms Commander (AFC) #300, 2021
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Forgotten Realms Commander (AFC) #31, 2021
Fiendlash 
Artifact — Equipment
Equipped creature gets +2/+0 and has reach.
Whenever equipped creature is dealt damage, it deals damage equal to its power to target player or planeswalker.
Equip 
MTGO price: 0.26 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
9 combos from Commander Spellbook, the most popular first.
- Infinite damage: Boros Reckoner + Fiendlash
- Infinite damage: Fiendlash + Ill-Tempered Loner // Howlpack Avenger
- Infinite damage: Fiendlash + Spitemare
- Near-infinite damage to one opponent: Dawnsire, Sunstar Dreadnought + Fiendlash
- Infinite damage to one opponent, Infinite lifeloss: Barbed Servitor + Fiendlash + Pariah's Shield
- Infinite damage to one opponent, Infinite lifeloss: Barbed Servitor + Fiendlash + Pariah
- Infinite damage to one opponent, Infinite lifeloss: Barbed Servitor + Fiendlash + Gideon's Sacrifice
- Infinite damage to one opponent, Infinite lifeloss: Barbed Servitor + Fiendlash + With Great Power . . .
- Each opponent loses the game: Blightsteel Colossus + Fiendlash + Pyrohemia
Legality
Constructed
- Standard Not legal
- Pioneer Not legal
- Modern Not legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Legal
- Timeless Legal
- Alchemy Not legal
- Penny Dreadful Not legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Not legal
- Competitive Brawl Legal