Boros Signet
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Artifact
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Tarkir: Dragonstorm Commander (TDC)
Boros Signet lands in 3.7% of all tracked Commander decks, but among the Boros-identity players who run it, 67% of drawn copies are cast before the game ends, with a median first-cast turn of 3.
Boros Signet is a color-locked staple: its {R}{W} color identity restricts it to red-white decks, and at just 3.7% inclusion across all 1,755 tracked decks it is squarely a role-player rather than a universal auto-include. Among the 65 decks that do run it, however, the card performs its job with quiet consistency.
The draw-to-play rate sits at 67%. When a player draws a Boros Signet, they cast it two-thirds of the time. The median first-cast turn is 3, meaning it typically comes down right on schedule to accelerate into a turn-4 or turn-5 commander. 58% of drawn copies are cast on the same turn they are drawn, a sign that players rarely see a reason to hold it. Battlefield stickiness is 83%, so once it resolves it almost always survives to the end of the game.
The cast-vs-library win-rate delta is negative at roughly -8 points, a directional signal worth noting: participations where the Signet sat in the library finished with a 41% win rate, compared to 33% when it was cast. With only 24 cast observations and 63 library observations, this is early-signal territory and likely reflects deck-quality effects rather than the Signet actively hurting its owner. Faster, higher-powered Boros builds may simply win more games overall regardless of whether the Signet shows up.
- 3.7% overall inclusion rate across all tracked Commander decks
- 67% of drawn copies are cast before the game ends
- T3 median first-cast turn, right on the acceleration curve
- 83% battlefield stickiness once it resolves
- 58% of drawn copies cast on the same turn they are drawn
- 65 distinct decks running Boros Signet in Playgroup Live data
First-cast turn
n=29The "good card" funnel
135 broughtOf 103 Boros Signets brought to games, 36 were drawn, 24 of those were cast, and 20 were still on the battlefield when the game ended, tracing the steady but color-gated progression of a reliable two-mana rock.
Players who cast this card win 34% of the time (n=29) , vs 44% when it never left the library (n=88).
Final zone distribution
135 instances63 of 103 Boros Signets ended in the library, a structural baseline for any singleton in a 100-card deck. The 20 on the battlefield at game end reflect a card that sticks when it resolves.
Top commanders running this card
by deck count-
1
Lorehold, the Historian
10 decks
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2
Kaalia of the Vast
9 decks
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3
Nelly Borca, Impulsive Accuser
7 decks
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4
Neyali, Suns' Vanguard
5 decks
-
5
Quintorius, History Chaser
5 decks
-
6
The Jolly Balloon Man
5 decks
-
7
Zedruu the Greathearted
5 decks
-
8
General Ferrous Rokiric
4 decks
-
9
Iroas, God of Victory
4 decks
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10
Trynn, Champion of Freedom
4 decks
Kaalia of the Vast leads at 8 decks, but the list fans out quickly across 10 different commanders, showing that Boros Signet is a broadly adopted role-player across the entire Boros spectrum rather than a card propping up one specific strategy.
How often is Boros Signet drawn in a Commander game? ▾
Across 103 deck participations tracked on Playgroup Live, Boros Signet was drawn in 35% of them (36 instances). That is on the higher side for a singleton in a 100-card deck. The elevated draw rate likely reflects that Boros decks in our dataset tend to have faster, more aggressive curves that end games before the library is completely cycled, giving drawn cards more chances to appear in the data.
What turn does Boros Signet usually get cast? ▾
The median first-cast turn is 3, with the 25th percentile at turn 2 and the 75th at turn 7. Four copies were even cast on turn 1, likely accelerated by other ramp. The distribution is front-loaded: 13 of 24 casts happened on turns 1 through 3, which lines up with the card's intended role as early mana acceleration.
Does casting Boros Signet actually help you win? ▾
So far the directional signal runs negative. Participations where the Signet was cast show a 33% win rate (8 wins in 24 games). Participations where it stayed in the library show a 41% win rate (26 wins in 63 games). The cast-vs-library delta is -7.9 points. Both sample sizes are below the threshold for conclusive claims, so treat this as an early signal. One plausible explanation: higher-powered Boros lists win more often regardless of whether the Signet shows up, while mid-power lists that lean harder on Signet still lose to faster pods.
Which commanders most often run Boros Signet in Playgroup Live games? ▾
Kaalia of the Vast leads with 8 decks, followed by Lorehold, the Historian and Nelly Borca, Impulsive Accuser at 7 each. Neyali, Suns' Vanguard and The Jolly Balloon Man each appear in 5 decks. The spread covers aggressive combat decks, token strategies, and value engines, which reflects how broadly useful a two-mana mana rock is in any red-white shell.
Is Boros Signet legal in formats other than Commander? ▾
Yes. Boros Signet is legal in Commander, Legacy, Modern, Vintage, Pauper, Pauper Commander, Duel Commander, Historic, Timeless, Gladiator, Oathbreaker, Brawl, and Premodern. It is not legal in Standard, Pioneer, Alchemy, or Standard Brawl. Despite its Modern legality, competitive play outside Commander is essentially nonexistent as two-mana tapped rocks are far too slow for those formats.
Why is Boros Signet a staple in red-white Commander decks? ▾
Red and white are historically the weakest colors for mana acceleration in Commander. Boros Signet fills a structural gap: it is a two-mana artifact that taps for two colored mana with a one-mana activation, enabling turn-4 commanders from a turn-3 play. It also fixes colors, which matters more in a two-color deck running 100 singletons. Our data shows an 83% survival rate once it resolves, so the acceleration it provides is reliable for most of the game.