K-9, Mark I commander decks

Mono-Blue commanders

We track 101 decks led by K-9, Mark I. Almost all of them run two commanders.

Deck numbers as of November 8, 2026 · refreshed weekly

Search all K-9 decks

The card$3.64+12.7% in 30 daysas of Nov 9Price history for K-9, Mark I

Decks led

101

0.01% of the 859,743 legal decks we track.

Median deck price

$1,399

Most cost $177 to $10,195.

Median power

6.8

Most rate 4.6 to 8.7 on the 1 to 10 EDH power level scale.

Median salt

5.7

Most score 3.3 to 10.0 out of 10.

Most often built as midrange (28%), then control (25%).

Real K-9, Mark I decks

Real decks from our database, picked from this commander's own price range and from every bracket people build it in. Open any of them for the full list. The picks rotate weekly.

By budget

Budget build
$169
price
4.7
power
5.2
salt
Bracket 3 (Upgraded)
{W}{U}{R}midrange
Find more K-9 decks
Typical build
$1,399
price
8.6
power
4.6
salt
Bracket 5 (cEDH)
{W}{U}{R}{G}combo
Find more K-9 decks
High-end build
$10,195
price
8.7
power
5.7
salt
Bracket 5 (cEDH)
{W}{U}{R}{G}midrange
Find more K-9 decks

1 of 3

By bracket

Bracket 3 · Upgraded
$603
price
5.1
power
3.0
salt
Bracket 3 (Upgraded)
{W}{U}{R}midrange
More bracket 3 K-9 decks
Bracket 4 · Optimized
$489
price
4.3
power
4.7
salt
Bracket 4 (Optimized)
{W}{U}midrange
More bracket 4 K-9 decks
Bracket 5 · cEDH
$7,330
price
8.6
power
9.7
salt
Bracket 5 (cEDH)
{W}{U}{R}combo
More bracket 5 K-9 decks

1 of 3

K-9, Mark I decks by price and bracket

Deck prices

5 decks from $1,000 to $1,500, the median band

Decks per price band. Pick a band to see its count. The highlighted band, $1,000 to $1,500, holds the median deck at $1,399. 17 of these decks cost $250 or less.

WotC brackets

Bracket 1 (Exhibition)4% · 4
Bracket 2 (Core)5% · 5
Bracket 3 (Upgraded)30% · 30
Bracket 4 (Optimized)19% · 19
Bracket 5 (cEDH)43% · 43

Search K-9, Mark I decks by budget and bracket

The deck search narrows every K-9, Mark I deck we track by price, power, bracket and salt.

Search all K-9 decks

Under $250 (17) Bracket 5 builds (43)

What K-9, Mark I decks play

The 40 cards found most often across these 101 decks, with each card's current price. The bar is the share of decks running the card, and its green part is how far that share runs above the card's rate in every deck that could play it.

Creatures1

Esper Sentinel50%$53.35
Run in 50 of these decks (50%), 24% of decks that could run it.

Instants13

Deflecting Swat56%$73.71
Run in 57 of these decks (56%), 23% of decks that could run it.
Enlightened Tutor55%$32.96
Run in 55 of these decks (55%), 20% of decks that could run it.
Fierce Guardianship55%$63.92
Run in 55 of these decks (55%), 22% of decks that could run it.
Swords to Plowshares51%$1.24
Run in 51 of these decks (51%), 50% of decks that could run it.
Flusterstorm48%$3.95
Run in 48 of these decks (48%), 11% of decks that could run it.
Mindbreak Trap47%$6.16
Run in 47 of these decks (47%), 7% of decks that could run it.

7 more instants

Force of Negation46%$43.86
Run in 46 of these decks (46%), 12% of decks that could run it.
Force of Will46%$54.90
Run in 46 of these decks (46%), 13% of decks that could run it.
Mystical Tutor46%$15.57
Run in 46 of these decks (46%), 17% of decks that could run it.
Silence46%$5.87
Run in 46 of these decks (46%), 11% of decks that could run it.
Mental Misstep44%$6.47
Run in 44 of these decks (44%), 8% of decks that could run it.
Swan Song44%$12.04
Run in 44 of these decks (44%), 26% of decks that could run it.
Brain Freeze43%$2.02
Run in 43 of these decks (43%), 5% of decks that could run it.

Sorceries1

Sevinne's Reclamation47%$0.41
Run in 47 of these decks (47%), 9% of decks that could run it.

Artifacts6

Sol Ring93%$1.14
Run in 94 of these decks (93%), 88% of decks that could run it.
Arcane Signet88%$0.40
Run in 89 of these decks (88%), 79% of decks that could run it.
Mox Amber55%$84.18
Run in 55 of these decks (55%), 7% of decks that could run it.
Lotus Petal47%$27.12
Run in 47 of these decks (47%), 11% of decks that could run it.
Mana Vault44%$96.69
Run in 44 of these decks (44%), 8% of decks that could run it.
Chrome Mox43%$153
Run in 43 of these decks (43%), 9% of decks that could run it.

Enchantments3

Rhystic Study62%$64.85
Run in 63 of these decks (62%), 28% of decks that could run it.
Mystic Remora51%$11.45
Run in 51 of these decks (51%), 22% of decks that could run it.
Underworld Breach45%$5.30
Run in 45 of these decks (45%), 9% of decks that could run it.

Lands16

Command Tower95%$0.20
Run in 96 of these decks (95%), 91% of decks that could run it.
Flooded Strand63%$15.90
Run in 64 of these decks (63%), 17% of decks that could run it.
Exotic Orchard59%$0.23
Run in 60 of these decks (59%), 48% of decks that could run it.
Scalding Tarn58%$35.37
Run in 59 of these decks (58%), 16% of decks that could run it.
Arid Mesa55%$28.28
Run in 56 of these decks (55%), 14% of decks that could run it.
Misty Rainforest53%$35.60
Run in 53 of these decks (53%), 16% of decks that could run it.

10 more lands

Otawara, Soaring City51%$28.65
Run in 51 of these decks (51%), 20% of decks that could run it.
Windswept Heath50%$11.84
Run in 50 of these decks (50%), 16% of decks that could run it.
Hallowed Fountain48%$4.50
Run in 48 of these decks (48%), 47% of decks that could run it.
Mana Confluence48%$34.05
Run in 48 of these decks (48%), 12% of decks that could run it.
Polluted Delta47%$21.12
Run in 47 of these decks (47%), 19% of decks that could run it.
Ancient Tomb45%$125
Run in 45 of these decks (45%), 12% of decks that could run it.
Tundra45%$715
Run in 45 of these decks (45%), 15% of decks that could run it.
Wooded Foothills45%$17.91
Run in 45 of these decks (45%), 15% of decks that could run it.
City of Brass44%$10.71
Run in 44 of these decks (44%), 14% of decks that could run it.
Volcanic Island44%$1,012
Run in 44 of these decks (44%), 15% of decks that could run it.

Cards that set K-9 decks apart

These show up in K-9 decks far more often than in other decks that could play them.

Mox Amber$84.18
55% of these decks, against 7% of other decks that could run it.
Flooded Strand$15.90
63% of these decks, against 17% of other decks that could run it.
Scalding Tarn$35.37
58% of these decks, against 16% of other decks that could run it.
Arid Mesa$28.28
55% of these decks, against 14% of other decks that could run it.
Mindbreak Trap$6.16
47% of these decks, against 7% of other decks that could run it.
The Third Doctor$0.33
40% of these decks, against under 1% of other decks that could run it.

6 more signature cards

Sevinne's Reclamation$0.41
47% of these decks, against 9% of other decks that could run it.
Brain Freeze$2.02
43% of these decks, against 5% of other decks that could run it.
Flusterstorm$3.95
48% of these decks, against 11% of other decks that could run it.
Misty Rainforest$35.60
53% of these decks, against 16% of other decks that could run it.
Intuition$357
39% of these decks, against 2% of other decks that could run it.
Mana Vault$96.69
44% of these decks, against 8% of other decks that could run it.

K-9, Mark I combos

68 of these decks (67%) run at least one combo listed on Commander Spellbook. These are the ones they run most.

Brain Freeze plus Lotus Petal plus Underworld Breach
Infinite mill
27%27 decks
Steps on Spellbook(opens in a new tab)
Brain Freeze plus Lion's Eye Diamond plus Underworld Breach
Infinite mill, mana and storm count
26%26 decks
Steps on Spellbook(opens in a new tab)
Food Chain plus Squee, the Immortal
Infinite cast, mana, ETBs, LTBs and storm count
20%20 decks
Steps on Spellbook(opens in a new tab)
Hullbreaker Horror plus Sol Ring plus Lotus Petal
Infinite mana and storm count
14%14 decks
Steps on Spellbook(opens in a new tab)
Hullbreaker Horror plus Sol Ring plus Mox Amber
Infinite mana and storm count
14%14 decks
Steps on Spellbook(opens in a new tab)
Smothering Tithe plus Underworld Breach plus Wheel of Fortune
Infinite draw, looting and mana
14%14 decks
Steps on Spellbook(opens in a new tab)
Brain Freeze plus Lotus Petal plus Underworld Breach
Infinite mill
13%13 decks
Steps on Spellbook(opens in a new tab)
Hullbreaker Horror plus Mana Vault plus Lotus Petal
Infinite mana and storm count
12%12 decks
Steps on Spellbook(opens in a new tab)

Who K-9, Mark I partners with

100 of the 101 decks run a second commander. These pairings lead the most of them.

The Fourteenth Doctor47% · 47
47 decks pair K-9, Mark I with The Fourteenth Doctor.
The War Doctor43% · 43
43 decks pair K-9, Mark I with The War Doctor.

Commanders like K-9, Mark I

Their decks lean on many of the same signature cards as K-9 decks do.