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Furnace of Rath

Enchantment

If a source would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.

CMC
4
Mana cost
{1}{R}{R}{R}
Color identity
R
Rarity
rare
Set
Ninth Edition
Price
—
EDHREC rank
#4503
Buy on TCGplayer
Furnace of Rath card art
Furnace of Rath doubles all damage dealt to players and planeswalkers — a four-mana enchantment that compresses games from a slow bleed into a sprint. Commanders like Heartless Hidetsugu and Zo-Zu the Punisher treat it as a required piece, not a flex slot.

Best Commanders

Commanders with the highest synergy

01
Zo-Zu the Punisher

Zo-Zu the Punisher

44.5% of decks · synergy 0.39

Zo-Zu the Punisher pings each opponent for 2 every time they play a land; Furnace of Rath turns those pings into 4, and in a four-player pod where everyone is developing their mana, the cumulative damage closes games before the table can stabilize.

02
Imodane, the Pyrohammer

Imodane, the Pyrohammer

32.3% of decks · synergy 0.27

Imodane, the Pyrohammer copies spells that deal damage to a single target and redirects the copy to every opponent, so Furnace of Rath's doubling effect stacks on top of that replication and can convert a modest Shock effect into a table-wiping number.

03
Mogis, God of Slaughter

Mogis, God of Slaughter

20.5% of decks · synergy 0.19

Mogis, God of Slaughter forces each opponent to either sacrifice a creature or take 2 damage every upkeep; Furnace of Rath makes the damage option an effective 4, tightening the vice on players who can't afford to trade creatures.

04
Solphim, Mayhem Dominus

Solphim, Mayhem Dominus

20.5% of decks · synergy 0.15

Solphim, Mayhem Dominus already replaces Furnace of Rath's effect for noncombat sources you control, but stacking both doublings means a single Lightning Bolt hits a player for 12 — running Furnace of Rath alongside Solphim is how that math gets absurd fast.

05
Gisela, Blade of Goldnight

Gisela, Blade of Goldnight

15.5% of decks · synergy 0.15

Gisela, Blade of Goldnight halves damage dealt to you and doubles damage dealt to opponents, so Furnace of Rath's symmetry stops being a liability — opponents take quadruple while you take nothing extra, making Furnace of Rath an asymmetric weapon in her hands.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Furnace of Rath is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but its real home is Commander by a wide margin. In Legacy and Vintage the four-mana investment is far too slow against combo and efficient interaction, and no competitive deck wants to hand opponents a damage doubler before securing its own win. Modern has more midrange breathing room but still offers nothing that wants this effect at that cost. In Commander, Furnace of Rath lands in a sweet spot: the game is long enough that you'll get triggers out of it, multiplayer math amplifies the doubled damage across three opponents simultaneously, and damage-centric commanders turn the symmetry into an outright advantage.

Key Combos

Combo lines featuring this card

Price Context

Current price

unknown tier

Pricing data for Furnace of Rath isn't available in the current feed, so check Scryfall or TCGPlayer for the current market price across its multiple printings. It has been reprinted several times, which historically keeps copies accessible — but verify before buying.

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Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.