Brass Knuckles
Artifact — Equipment
When you cast this spell, copy it. (The copy becomes a token.)
Equipped creature has double strike as long as two or more Equipment are attached to it.
Equip 
(: Attach to target creature you control. Equip only as a sorcery.)
- CMC
- 4
- Mana cost
- Color identity
- C
- Rarity
- uncommon
- Set
- Fallout
- Price
- $0.29
- EDHREC rank
- #4894
Brass Knuckles puts double strike on a creature for three mana and then copies itself onto another creature you control — two threats with double strike for one card. The cost is real: three mana is a tempo ask for an Aura-adjacent effect, and Brass Knuckles does nothing if you're behind on board. Dogmeat, Ever Loyal is the canonical home because attaching junk to creatures is already the engine, not a detour.
Best Commanders
Commanders with the highest synergy
Dogmeat, Ever Loyal
Dogmeat, Ever Loyal naturally assembles a board of creatures wearing Junk attachments, so Brass Knuckles enters an ecosystem built to use it — double strike turns each chip-damage swing into a serious threat, and the copy clause means one play spreads double strike across two attackers for free.
Valduk, Keeper of the Flame
Valduk, Keeper of the Flame cares about the count of Auras and Equipment attached to him, and Brass Knuckles counts as an Aura while simultaneously making every attack hit twice as hard — the copy then arms a second creature, creating even more token fodder.
The Mindskinner
The Mindskinner wants to connect with opponents as many times and as lethally as possible, and Brass Knuckles doubles each combat's output before the copy sets up a second threat doing the same work.
Traxos, Scourge of Kroog
Traxos, Scourge of Kroog is a 7/7 trampler that regularly attacks alone, so Brass Knuckles converts those already-massive swings into double-strike lethal pressure — and the copy lands on a second creature to keep the threat density high when Traxos is answered.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | legal |
| oathbreaker | legal |
In Commander, Brass Knuckles earns its slot specifically in Aura-matters and equipment-adjacent builds where the self-replicating copy clause generates genuine card advantage — in a generic deck, it's just a three-mana double-strike Aura and that's not compelling enough. Pauper is where the card has the most competitive intrigue: double strike at common is a meaningful keyword, and the copy effect can end games in go-wide or Aura Hexproof shells faster than opponents can answer two threats. In Modern and Pioneer, Brass Knuckles is too slow and too fragile against removal-heavy fields where paying three mana on an Aura that dies to any instant-speed kill spell is card disadvantage. Legacy and Vintage can do far more broken things for three mana, so Brass Knuckles never registers there.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.29 bulk tier
At $0.29, Brass Knuckles is bulk — pick it up freely without any budget consideration. The price reflects its narrow fit rather than low power, so in the right deck it overperforms its cost by a wide margin.
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Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.