K-9, Mark I
$3.65
$3.65Legendary Artifact Creature — Robot Dog
Doctor Commanders
K-9, Mark I: Legends can be the companion for any of these 17 Doctors.
The War Doctor
The Fourteenth Doctor
The Twelfth Doctor
The Third Doctor
The Second Doctor
The Seventh Doctor
The Eleventh Doctor
The Tenth Doctor
The Thirteenth Doctor
The Sixth Doctor
The Eighth Doctor
The Fifteenth Doctor
The Fifth Doctor
The First Doctor
The Fourth Doctor
The Fugitive Doctor
The Ninth DoctorHigh Synergy Cards
The highest-synergy picks for K-9, Mark I's Legends builds — cards that lean hardest into the Legends theme.
Ioreth of the Healing House+89% Synergy
$0.37
Iymrith, Desert Doom+78% Synergy
$1.34
Nezahal, Primal Tide+71% Synergy
$8.26
Callaphe, Beloved of the Sea+70% Synergy
$0.22
Rivendell+68% Synergy
$1.69
Eluge, the Shoreless Sea+61% Synergy
$5.25
Teferi, Mage of Zhalfir+61% Synergy
$3.98
Thassa, God of the Sea+61% Synergy
$3.49
Heroes' Podium+56% Synergy
$0.52
Arwen's Gift+56% Synergy
$0.25
Top Cards
The staple cards most K-9, Mark I Legends decks run as their core.
Sun Quan, Lord of Wu+56% Synergy
$8.25
Kira, Great Glass-Spinner+55% Synergy
$5.71
Aetherize+48% Synergy
$0.73
The Reality Chip+45% Synergy
$4.49
Reality Shift+31% Synergy
$0.32
Sapphire Medallion+19% Synergy
$6.98
Frantic Search+19% Synergy
$1.94
Brainstorm+16% Synergy
$1.41
Counterspell+13% Synergy
$3.32
Pongify+10% Synergy
$1.91
Game Changers
High-impact bombs that can take over a K-9, Mark I Legends game on their own.
Cyclonic Rift+25% Synergy
$38.67
Fierce Guardianship+13% Synergy
$57.26
Ancient Tomb+3% Synergy
$134.99
The One Ring-5% Synergy
$115.22
Mystical Tutor-8% Synergy
$16.42
Rhystic Study-10% Synergy
$69.93
Creatures
Creatures that carry the Legends plan in K-9, Mark I decks, from early pressure to payoff.
Grazilaxx, Illithid Scholar+48% Synergy
$1.98
Malcolm, Alluring Scoundrel+45% Synergy
$2.44
Piper Wright, Publick Reporter+42% Synergy
$0.36
The Blue Spirit+40% Synergy
$0.80
Unctus, Grand Metatect+37% Synergy
$0.43
The Mechanist, Aerial Artisan+37% Synergy
$0.28
Jin-Gitaxias, Progress Tyrant+35% Synergy
$9.22
Thryx, the Sudden Storm+35% Synergy
$0.18
Kairi, the Swirling Sky+35% Synergy
$0.93
Atemsis, All-Seeing+34% Synergy
$0.38
Esior, Wardwing Familiar+33% Synergy
$0.56
Gogo, Master of Mimicry+31% Synergy
$3.96
Venser, Shaper Savant+30% Synergy
$1.12
Sakashima of a Thousand Faces+28% Synergy
$33.36
Lorthos, the Tidemaker+28% Synergy
$0.30
The Peregrine Dynamo+28% Synergy
$2.75
Empress Galina+28% Synergy
$13.65
Kiora, the Rising Tide+27% Synergy
$0.37
Jin-Gitaxias+26% Synergy
$12.91
Sakashima the Impostor+25% Synergy
$18.51
Gadwick, the Wizened+25% Synergy
$0.72
Jin-Gitaxias, Core Augur+24% Synergy
$12.63
The Mindskinner+24% Synergy
$2.45
Braids, Conjurer Adept+21% Synergy
$0.36
Curie, Emergent Intelligence+21% Synergy
$0.31
Martha Jones+21% Synergy
$0.36
Adric, Mathematical Genius+21% Synergy
$0.36
Ulamog, the Ceaseless Hunger+20% Synergy
$23.63
Cosima, God of the Voyage+20% Synergy
$0.96
James, Wandering Dad+20% Synergy
$0.31
Ulamog, the Infinite Gyre+20% Synergy
$36.17
Forecasting Fortune Teller+20% Synergy
$0.15
Baral, Chief of Compliance+18% Synergy
$3.04
Spider-Man 2099, Miguel O'Hara+17% Synergy
$8.08
Mu Yanling, Wind Rider+16% Synergy
$0.50
Ultimecia, Temporal Threat+16% Synergy
$0.46
Ultima, Origin of Oblivion+16% Synergy
$1.10
Talrand, Sky Summoner+15% Synergy
$1.55
Y'shtola Rhul+15% Synergy
$5.25
Jill, Shiva's Dominant+15% Synergy
$0.39
Iron Spider, Stark Upgrade+15% Synergy
$2.04
Lady Octopus, Inspired Inventor+15% Synergy
$0.80
Solemn Simulacrum+14% Synergy
$0.32
Urza, Lord High Artificer+14% Synergy
$15.97
Vnwxt, Verbose Host+14% Synergy
$0.42
Starwinder+14% Synergy
$1.12
Senator Peacock+14% Synergy
$0.77
The Unagi of Kyoshi Island+13% Synergy
$1.28
Mm'menon, the Right Hand+13% Synergy
$0.39
Lyla, Holographic Assistant+13% Synergy
$4.79
Instants
Instant-speed interaction and tricks that keep K-9, Mark I's Legends deck ahead.
Desynchronization+31% Synergy
$5.42
Deduce+19% Synergy
$0.21
Lost Days+19% Synergy
$0.17
Arcane Denial+14% Synergy
$1.67
Secrets of the Key+14% Synergy
$0.23
Confirm Suspicions+14% Synergy
$0.28
Eliminate the Impossible+14% Synergy
$0.08
Negate+12% Synergy
$0.31
Archmage's Charm+12% Synergy
$1.88
Mana Drain+9% Synergy
$57.71
Rapid Hybridization+8% Synergy
$1.20
Sublime Epiphany+8% Synergy
$0.33
Disallow+8% Synergy
$1.80
Consider+7% Synergy
$0.32
Leadership Vacuum+6% Synergy
$0.55
Redirect+6% Synergy
$0.34
Submerge+6% Synergy
$12.85
Stoic Rebuttal+5% Synergy
$0.31
Suspend+5% Synergy
$0.51
Opt+4% Synergy
$0.23
Stubborn Denial+4% Synergy
$3.83
Cackling Counterpart+4% Synergy
$0.35
Run Away Together+3% Synergy
$0.17
Essence Scatter+3% Synergy
$0.19
Unsummon+3% Synergy
$0.25
Disdainful Stroke+2% Synergy
$0.26
Commandeer+2% Synergy
$3.11
Thought Scour0% Synergy
$1.01
March of Swirling Mist0% Synergy
$4.58
High Tide-1% Synergy
$1.66
Force of Negation-1% Synergy
$49.89
Evacuation-1% Synergy
$0.32
Dispel-2% Synergy
$0.41
Pull from Tomorrow-2% Synergy
$0.22
Mystic Confluence-2% Synergy
$1.06
Flusterstorm-3% Synergy
$8.78
Blue Sun's Zenith-4% Synergy
$3.17
Cryptic Command-5% Synergy
$7.44
Muddle the Mixture-8% Synergy
$2.58
An Offer You Can't Refuse-9% Synergy
$3.83
Resculpt-10% Synergy
$0.28
Swan Song-13% Synergy
$11.36
Sorceries
Sorceries that push the Legends game plan forward for K-9, Mark I.
Lórien Revealed+27% Synergy
$4.76
Serum Visions+19% Synergy
$2.73
Karn's Temporal Sundering+19% Synergy
$1.75
Time Stretch+17% Synergy
$4.93
Press for Answers+14% Synergy
$0.05
Hard Evidence+13% Synergy
$0.24
Traverse Eternity+13% Synergy
$0.39
Preordain+12% Synergy
$0.68
Curse of the Swine+10% Synergy
$0.32
Introduction to Annihilation+7% Synergy
$0.27
Ravenform+6% Synergy
$0.36
Birthday Escape+6% Synergy
$0.30
Sleep+6% Synergy
$0.27
Inevitable Betrayal+6% Synergy
$1.19
Devastation Tide+5% Synergy
$0.49
Energy Tap+4% Synergy
$0.29
Quantum Misalignment+4% Synergy
$4.97
Temporal Mastery+4% Synergy
$4.78
Quasiduplicate+4% Synergy
$0.76
River's Rebuke+4% Synergy
$0.24
Bribery+3% Synergy
$6.49
Enter the Infinite+2% Synergy
$7.44
Time Warp+1% Synergy
$5.26
Ponder-1% Synergy
$2.28
Irenicus's Vile Duplication-1% Synergy
$11.93
Fabricate-7% Synergy
$10.13
Windfall-8% Synergy
$5.05
Utility Artifacts
Artifacts that add consistency and utility to K-9, Mark I Legends decks.
Champion's Helm+41% Synergy
$2.71
Mithril Coat+40% Synergy
$31.91
Blackblade Reforged+38% Synergy
$2.86
Excalibur, Sword of Eden+34% Synergy
$18.54
Bident of Thassa+31% Synergy
$0.40
The Key to the Vault+27% Synergy
$0.55
Helm of the Host+25% Synergy
$5.98
Commander's Plate+24% Synergy
$45.71
Swiftfoot Boots+22% Synergy
$2.28
Mirror of Galadriel+21% Synergy
$0.21
Magnifying Glass+21% Synergy
$0.22
Sword of Feast and Famine+20% Synergy
$40.84
Lightning Greaves+17% Synergy
$4.52
The Regalia+16% Synergy
$1.81
Kefnet's Monument+15% Synergy
$0.41
Thran Temporal Gateway+14% Synergy
$0.52
Weatherlight+14% Synergy
$1.98
Bessie, the Doctor's Roadster+14% Synergy
$0.30
Quietus Spike+13% Synergy
$1.61
Tamiyo's Journal+13% Synergy
$2.58
Brotherhood Regalia+13% Synergy
$9.18
Wayfarer's Bauble+11% Synergy
$4.67
Mirror Box+11% Synergy
$5.42
Pip-Boy 3000+7% Synergy
$6.83
Rogue's Gloves+7% Synergy
$0.77
Armillary Sphere+7% Synergy
$0.27
Confession Dial+7% Synergy
$0.26
Mirror Gallery+7% Synergy
$12.10
The Animus+7% Synergy
$0.32
Bilbo's Ring+7% Synergy
$15.02
Sword of Wealth and Power+7% Synergy
$20.35
Goldvein Pick+7% Synergy
$0.20
Hero's Blade+7% Synergy
$0.29
Noble's Purse+7% Synergy
$0.28
Survivor's Med Kit+7% Synergy
$0.33
Prized Statue+6% Synergy
$0.36
Bloodforged Battle-Axe+6% Synergy
$2.67
Colossus Hammer+6% Synergy
$2.26
Blade of Selves+6% Synergy
$2.96
Mycosynth Wellspring+6% Synergy
$0.37
The Indomitable+5% Synergy
$3.05
Whispersilk Cloak+5% Synergy
$1.71
Mirage Mirror+4% Synergy
$0.32
Sword of the Animist+2% Synergy
$5.94
Voltaic Key+1% Synergy
$6.16
Cloud Key0% Synergy
$2.74
Manifold Key0% Synergy
$1.67
Isochron Scepter-10% Synergy
$11.80
Enchantments
Enchantments that reinforce the Legends strategy in K-9, Mark I decks.
Combat Research+34% Synergy
$0.60
Curious Inquiry+21% Synergy
$0.26
Storm of Saruman+20% Synergy
$3.63
Aqueous Form+16% Synergy
$0.31
Hold for Questioning+14% Synergy
$0.24
Case of the Filched Falcon+14% Synergy
$0.07
Leyline of Singularity+14% Synergy
$4.49
Trail of Evidence+13% Synergy
$0.27
Coastal Piracy+9% Synergy
$0.29
Cloak of Mists+7% Synergy
$0.40
In Bolas's Clutches+7% Synergy
$0.18
Octopus Umbra+7% Synergy
$2.27
Stasis Field+7% Synergy
$0.23
Tricks of the Trade+7% Synergy
$0.26
Marit Lage's Slumber+7% Synergy
$0.65
Ballad of the Black Flag+7% Synergy
$0.30
Aether Tunnel+6% Synergy
$0.61
Followed Footsteps+6% Synergy
$3.38
The Bath Song+6% Synergy
$0.28
Curiosity+4% Synergy
$0.99
Extravagant Replication+4% Synergy
$0.42
Nerd Rage+4% Synergy
$3.41
Imprisoned in the Moon+2% Synergy
$0.33
Witness Protection+2% Synergy
$0.27
Reconnaissance Mission+1% Synergy
$0.34
Shark Typhoon0% Synergy
$1.42
Thopter Spy Network-1% Synergy
$0.49
Proft's Eidetic Memory-1% Synergy
$3.14
Omniscience-2% Synergy
$6.57
Teferi's Ageless Insight-10% Synergy
$4.78
Wizard Class-10% Synergy
$3.26
Propaganda-17% Synergy
$2.54
Planeswalkers
Planeswalkers that back up K-9, Mark I's Legends game plan.
Kaito, Cunning Infiltrator+28% Synergy
$1.49
Mu Yanling+7% Synergy
$9.25
Jace, Cunning Castaway+6% Synergy
$1.03
Jace, the Mind Sculptor+4% Synergy
$17.95
Teferi, Master of Time+2% Synergy
$8.46
Utility Lands
Non-basic lands that pull extra weight in K-9, Mark I Legends decks.
Minamo, School at Water's Edge+52% Synergy
$60.52
Castle Vantress+46% Synergy
$0.34
Dark Depths+27% Synergy
$3.25
Nykthos, Shrine to Nyx+26% Synergy
$53.41
Otawara, Soaring City+24% Synergy
$28.30
Labyrinth of Skophos+21% Synergy
$0.39
Great Hall of the Citadel+21% Synergy
$0.35
Seafarer's Quay+21% Synergy
$9.09
War Room+20% Synergy
$5.79
Lonely Sandbar+15% Synergy
$0.23
Untaidake, the Cloud Keeper+14% Synergy
$5.44
Mystifying Maze+14% Synergy
$0.59
Deserted Temple+14% Synergy
$0.80
Temple of the False God+12% Synergy
$0.26
Agna Qel'a+12% Synergy
$1.08
Thespian's Stage+12% Synergy
$0.48
Sunken Palace+10% Synergy
$0.99
Zhalfirin Void+6% Synergy
$0.83
Tyrite Sanctum+6% Synergy
$2.66
Vesuva+6% Synergy
$3.64
The Surgical Bay+6% Synergy
$0.19
Hall of Storm Giants+5% Synergy
$0.38
Desert of the Mindful+4% Synergy
$0.30
Seat of the Synod+3% Synergy
$0.93
Academy Ruins+3% Synergy
$8.07
Maze of Ith+2% Synergy
$9.65
Reliquary Tower+1% Synergy
$3.52
Mystic Sanctuary0% Synergy
$1.09
Terrain Generator-1% Synergy
$2.02
Urza's Saga-2% Synergy
$38.89
Archway of Innovation-4% Synergy
$1.81
Buried Ruin-5% Synergy
$0.43
Rogue's Passage-8% Synergy
$0.36
Mana Artifacts
Mana rocks and fixing to power out K-9, Mark I's Legends strategy.
Relic of Legends+62% Synergy
$1.00
Patriar's Seal+55% Synergy
$5.93
Midnight Clock+37% Synergy
$0.62
Sky Diamond+28% Synergy
$0.26
Throne of Eldraine+27% Synergy
$28.49
Crystal Skull, Isu Spyglass+24% Synergy
$1.94
Mox Amber+21% Synergy
$81.06
Commander's Sphere+20% Synergy
$0.34
The Irencrag+14% Synergy
$0.83
Five Hundred Year Diary+14% Synergy
$0.39
Eye of Ramos+14% Synergy
$2.99
Star Compass+13% Synergy
$0.50
Thran Dynamo+9% Synergy
$4.34
Decanter of Endless Water+8% Synergy
$5.39
Mana Geode+7% Synergy
$0.31
Honored Heirloom+7% Synergy
$0.20
Fountain of Ichor+7% Synergy
$0.29
Manalith+7% Synergy
$0.78
Strixhaven Stadium+6% Synergy
$0.43
Darksteel Ingot+6% Synergy
$0.43
Honor-Worn Shaku+6% Synergy
$0.40
Sonic Screwdriver+6% Synergy
$3.06
Skyclave Relic+6% Synergy
$1.51
Caged Sun+3% Synergy
$3.72
Nyx Lotus+3% Synergy
$4.93
Hedron Archive+2% Synergy
$0.15
Mind Stone+1% Synergy
$0.31
Everflowing Chalice-2% Synergy
$0.30
Arcane Signet-8% Synergy
$0.89
Thought Vessel-9% Synergy
$2.59
Sol Ring-13% Synergy
$1.55
Fellwar Stone-13% Synergy
$0.89
Lands
The mana base behind K-9, Mark I's Legends decks.
Plaza of Heroes+28% Synergy
$4.66
The Grey Havens+21% Synergy
$0.30
Myriad Landscape+18% Synergy
$0.37
Terramorphic Expanse+11% Synergy
$0.26
Evolving Wilds+10% Synergy
$0.25
Island+6% Synergy
$0.08
Abstergo Entertainment+6% Synergy
$2.75
Urza's Cave+3% Synergy
$1.75
Similar Commanders
The following Commanders share a similar playing style, strategy, or theme like K-9, Mark I: Legends.
Ludevic, Necro-Alchemist // Yoshimaru, Ever Faithful
The Fourth Doctor // Tegan Jovanka
Brinelin, the Moon Kraken // Yoshimaru, Ever Faithful
The Thirteenth Doctor // Ian Chesterton
Shaun & Rebecca, Agents
The Eleventh Doctor // K-9, Mark I
The Fourteenth Doctor // Martha Jones
The Sixth Doctor // Peri Brown
The Sixth Doctor // Jamie McCrimmon
Shaun, Father of Synths
The Second Doctor // Jamie McCrimmon
The Fourteenth Doctor // Donna Noble
Jedit Ojanen, Mercenary
The Fourteenth Doctor // Rose Noble
The Twelfth Doctor // Jamie McCrimmon
The Sixth Doctor // Susan Foreman
The Fourteenth Doctor // Jamie McCrimmon
The Fourteenth Doctor
The Eighth Doctor // Graham O'Brien
The Fourteenth Doctor // Amy Pond
The Sixth Doctor // Yasmin Khan
The Fourteenth Doctor // Sarah Jane Smith
Niambi, Esteemed Speaker
The Fourteenth Doctor // Clara Oswald
The Sixth Doctor
The Sixth Doctor // Clara Oswald
Shanid, Sleepers' Scourge
The Fourth Doctor // Peri Brown
The Sixth Doctor // Bill Potts
The Tenth Doctor // Ace, Fearless Rebel
Kolvori, God of Kinship
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
Nashi, Moon's Legacy
Kamahl, Heart of Krosa // Yoshimaru, Ever Faithful
The Eighth Doctor // Vislor Turlough
The Sixth Doctor // Romana II
The Fourteenth Doctor // Graham O'Brien
The Fourteenth Doctor // Romana II
The Thirteenth Doctor // Peri Brown
Bayek of Siwa