K-9, Mark I (Commander)

K-9, Mark I
Rank #3,451
42decks
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Background image for Building Two Legendary Matters Commander Decks
Ciel Collins
May 16, 2025
Ciel Collins
Building Two Legendary Matters Commander Decks
Let's break up the popular WUBRG Legendary Matters archetype into two different dueling Commander deck techs.
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Enchantments
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Utility Lands
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Lands
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The Blue Spirit
40%inclusion4 decks10 decks
39%synergy
Lost Days
20%inclusion2 decks10 decks
19%synergy
Waterbending Scroll
20%inclusion2 decks10 decks
10%synergy
The Mechanist, Aerial Artisan
20%inclusion2 decks10 decks
17%synergy
Forecasting Fortune Teller
20%inclusion2 decks10 decks
20%synergy
High Synergy Cards
Ioreth of the Healing House
71%inclusion30 decks42 decks
68%synergy
Rivendell
67%inclusion28 decks42 decks
55%synergy
Iymrith, Desert Doom
55%inclusion23 decks42 decks
54%synergy
Callaphe, Beloved of the Sea
45%inclusion19 decks42 decks
44%synergy
Thassa, God of the Sea
48%inclusion20 decks42 decks
44%synergy
Grazilaxx, Illithid Scholar
45%inclusion19 decks42 decks
43%synergy
The Reality Chip
52%inclusion22 decks42 decks
40%synergy
Nezahal, Primal Tide
48%inclusion20 decks42 decks
40%synergy
Teferi, Mage of Zhalfir
43%inclusion18 decks42 decks
39%synergy
Champion's Helm
40%inclusion17 decks42 decks
39%synergy
Top Cards
Sapphire Medallion
67%inclusion28 decks42 decks
9%synergy
Brainstorm
57%inclusion24 decks42 decks
16%synergy
Counterspell
57%inclusion24 decks42 decks
-9%synergy
Aetherize
55%inclusion23 decks42 decks
26%synergy
Pongify
48%inclusion20 decks42 decks
7%synergy
High Tide
48%inclusion20 decks42 decks
3%synergy
Ponder
48%inclusion20 decks42 decks
18%synergy
Bident of Thassa
45%inclusion19 decks42 decks
33%synergy
An Offer You Can't Refuse
45%inclusion19 decks42 decks
8%synergy
Eluge, the Shoreless Sea
43%inclusion16 decks37 decks
35%synergy
Game Changers
Cyclonic Rift
31%inclusion13 decks42 decks
-3%synergy
Fierce Guardianship
19%inclusion8 decks42 decks
-4%synergy
Rhystic Study
14%inclusion6 decks42 decks
-19%synergy
Mystical Tutor
14%inclusion6 decks42 decks
-9%synergy
Ancient Tomb
7.1%inclusion3 decks42 decks
-5%synergy
Creatures
Kira, Great Glass-Spinner
40%inclusion17 decks42 decks
38%synergy
Atemsis, All-Seeing
33%inclusion14 decks42 decks
31%synergy
Sun Quan, Lord of Wu
33%inclusion14 decks42 decks
33%synergy
Kairi, the Swirling Sky
31%inclusion13 decks42 decks
30%synergy
Adric, Mathematical Genius
31%inclusion13 decks42 decks
30%synergy
Solemn Simulacrum
31%inclusion13 decks42 decks
9%synergy
Malcolm, Alluring Scoundrel
29%inclusion12 decks42 decks
24%synergy
Unctus, Grand Metatect
29%inclusion12 decks42 decks
23%synergy
Baral, Chief of Compliance
29%inclusion12 decks42 decks
17%synergy
Esior, Wardwing Familiar
26%inclusion11 decks42 decks
23%synergy
Jin-Gitaxias, Progress Tyrant
26%inclusion11 decks42 decks
18%synergy
Venser, Shaper Savant
24%inclusion10 decks42 decks
18%synergy
Jin-Gitaxias
24%inclusion10 decks42 decks
20%synergy
Gadwick, the Wizened
24%inclusion10 decks42 decks
20%synergy
Piper Wright, Publick Reporter
22%inclusion9 decks41 decks
21%synergy
Empress Galina
21%inclusion9 decks42 decks
21%synergy
Thryx, the Sudden Storm
21%inclusion9 decks42 decks
20%synergy
Sakashima the Impostor
21%inclusion9 decks42 decks
18%synergy
Kiora, the Rising Tide
21%inclusion7 decks34 decks
17%synergy
The Peregrine Dynamo
19%inclusion8 decks42 decks
19%synergy
Sakashima of a Thousand Faces
19%inclusion8 decks42 decks
13%synergy
Arcanis the Omnipotent
19%inclusion8 decks42 decks
12%synergy
Jin-Gitaxias, Core Augur
19%inclusion8 decks42 decks
14%synergy
Ultimecia, Temporal Threat
18%inclusion4 decks22 decks
17%synergy
The Mindskinner
17%inclusion6 decks35 decks
14%synergy
Urza, Lord High Artificer
17%inclusion7 decks42 decks
9%synergy
Osgood, Operation Double
17%inclusion7 decks42 decks
16%synergy
Curie, Emergent Intelligence
15%inclusion6 decks41 decks
14%synergy
Jhoira's Familiar
14%inclusion6 decks42 decks
9%synergy
Spider-Man 2099, Miguel O'Hara
14%inclusion2 decks14 decks
14%synergy
Lorthos, the Tidemaker
14%inclusion6 decks42 decks
13%synergy
Talrand, Sky Summoner
14%inclusion6 decks42 decks
0%synergy
Lu Xun, Scholar General
14%inclusion6 decks42 decks
14%synergy
Starwinder
13%inclusion2 decks15 decks
10%synergy
Jill, Shiva's Dominant
13%inclusion3 decks23 decks
11%synergy
Ulamog, the Ceaseless Hunger
12%inclusion5 decks42 decks
11%synergy
Artificer's Assistant
12%inclusion5 decks42 decks
9%synergy
Volo, Itinerant Scholar
12%inclusion5 decks42 decks
12%synergy
Tetsuko Umezawa, Fugitive
12%inclusion5 decks42 decks
9%synergy
Hullbreaker Horror
12%inclusion5 decks42 decks
-13%synergy
Phyrexian Metamorph
12%inclusion5 decks42 decks
-7%synergy
Cosima, God of the Voyage
12%inclusion5 decks42 decks
11%synergy
Forensic Gadgeteer
12%inclusion5 decks42 decks
2%synergy
Emry, Lurker of the Loch
12%inclusion5 decks42 decks
0%synergy
Hope of Ghirapur
12%inclusion5 decks42 decks
11%synergy
Mockingbird
11%inclusion4 decks37 decks
7%synergy
Vnwxt, Verbose Host
10%inclusion3 decks29 decks
8%synergy
Wan Shi Tong, Librarian
10%inclusion1 decks10 decks
2%synergy
Knowledge Seeker
10%inclusion1 decks10 decks
9%synergy
Tui and La, Moon and Ocean
10%inclusion1 decks10 decks
8%synergy
Instants
Rapid Hybridization
40%inclusion17 decks42 decks
6%synergy
Arcane Denial
38%inclusion16 decks42 decks
2%synergy
Frantic Search
38%inclusion16 decks42 decks
8%synergy
Negate
36%inclusion15 decks42 decks
-2%synergy
Reality Shift
36%inclusion15 decks42 decks
8%synergy
Opt
36%inclusion15 decks42 decks
11%synergy
Desynchronization
33%inclusion13 decks39 decks
28%synergy
Archmage's Charm
29%inclusion12 decks42 decks
12%synergy
Consider
26%inclusion11 decks42 decks
12%synergy
Mana Drain
19%inclusion8 decks42 decks
-8%synergy
Glorious Gale
19%inclusion8 decks42 decks
18%synergy
Spell Pierce
17%inclusion7 decks42 decks
8%synergy
Swan Song
17%inclusion7 decks42 decks
-10%synergy
Magic Damper
15%inclusion3 decks20 decks
12%synergy
Louisoix's Sacrifice
14%inclusion3 decks21 decks
13%synergy
Wash Away
14%inclusion6 decks42 decks
10%synergy
Mystic Confluence
14%inclusion6 decks42 decks
5%synergy
Bounce Off
14%inclusion4 decks29 decks
13%synergy
Soothing of Sméagol
12%inclusion5 decks42 decks
11%synergy
Dispel
12%inclusion5 decks42 decks
3%synergy
Sublime Epiphany
12%inclusion5 decks42 decks
5%synergy
Cryptic Command
12%inclusion5 decks42 decks
0%synergy
Twiddle
12%inclusion5 decks42 decks
9%synergy
Disallow
12%inclusion5 decks42 decks
5%synergy
Deduce
12%inclusion5 decks42 decks
10%synergy
Twisted Image
10%inclusion4 decks42 decks
6%synergy
Tale's End
10%inclusion4 decks42 decks
6%synergy
Muddle the Mixture
10%inclusion4 decks42 decks
-6%synergy
Stoic Rebuttal
10%inclusion4 decks42 decks
7%synergy
Slip Out the Back
10%inclusion4 decks42 decks
2%synergy
Rewind
10%inclusion4 decks42 decks
-3%synergy
Dreadful as the Storm
10%inclusion4 decks42 decks
9%synergy
Phantom Interference
7.7%inclusion3 decks39 decks
7%synergy
Envelop
7.1%inclusion3 decks42 decks
7%synergy
Shore Up
7.1%inclusion3 decks42 decks
2%synergy
Secrets of the Key
7.1%inclusion3 decks42 decks
7%synergy
Confirm Suspicions
7.1%inclusion3 decks42 decks
7%synergy
Silundi Vision
7.1%inclusion3 decks42 decks
2%synergy
March of Swirling Mist
7.1%inclusion3 decks42 decks
-1%synergy
Cackling Counterpart
7.1%inclusion3 decks42 decks
4%synergy
Cerulean Wisps
7.1%inclusion3 decks42 decks
4%synergy
Vault Skyward
7.1%inclusion3 decks42 decks
7%synergy
Evacuation
7.1%inclusion3 decks42 decks
-1%synergy
Into the Flood Maw
5.4%inclusion2 decks37 decks
-1%synergy
Brainsurge
5.1%inclusion2 decks39 decks
-3%synergy
Sorceries
Preordain
43%inclusion18 decks42 decks
19%synergy
Arwen's Gift
33%inclusion14 decks42 decks
33%synergy
Serum Visions
24%inclusion10 decks42 decks
14%synergy
Birthday Escape
21%inclusion9 decks42 decks
20%synergy
Lórien Revealed
21%inclusion9 decks42 decks
12%synergy
Karn's Temporal Sundering
17%inclusion7 decks42 decks
14%synergy
Will of the Temur
16%inclusion4 decks25 decks
15%synergy
Windfall
14%inclusion6 decks42 decks
-8%synergy
Irenicus's Vile Duplication
14%inclusion6 decks42 decks
6%synergy
Ravenform
14%inclusion6 decks42 decks
5%synergy
Enter the Enigma
14%inclusion5 decks35 decks
8%synergy
Quasiduplicate
12%inclusion5 decks42 decks
9%synergy
Void Snare
10%inclusion4 decks42 decks
9%synergy
Quantum Misalignment
10%inclusion4 decks42 decks
6%synergy
Hard Evidence
10%inclusion4 decks42 decks
8%synergy
Time Stretch
10%inclusion4 decks42 decks
5%synergy
Devastation Tide
7.1%inclusion3 decks42 decks
4%synergy
Traverse Eternity
7.1%inclusion3 decks42 decks
6%synergy
Horses of the Bruinen
7.1%inclusion3 decks42 decks
7%synergy
Fabricate
7.1%inclusion3 decks42 decks
-14%synergy
Press for Answers
7.1%inclusion3 decks42 decks
7%synergy
Careful Study
7.1%inclusion3 decks42 decks
5%synergy
Utility Artifacts
Swiftfoot Boots
43%inclusion18 decks42 decks
15%synergy
Blackblade Reforged
36%inclusion15 decks42 decks
31%synergy
Heroes' Podium
33%inclusion14 decks42 decks
33%synergy
Excalibur, Sword of Eden
33%inclusion13 decks39 decks
32%synergy
Wayfarer's Bauble
26%inclusion11 decks42 decks
8%synergy
Mirror Box
24%inclusion10 decks42 decks
21%synergy
Helm of the Host
24%inclusion10 decks42 decks
20%synergy
Lightning Greaves
21%inclusion9 decks42 decks
-5%synergy
Kefnet's Monument
19%inclusion8 decks42 decks
13%synergy
Mithril Coat
19%inclusion8 decks42 decks
16%synergy
Brotherhood Regalia
18%inclusion7 decks39 decks
16%synergy
The Key to the Vault
15%inclusion6 decks39 decks
14%synergy
Mirror of Galadriel
14%inclusion6 decks42 decks
14%synergy
Commander's Plate
14%inclusion6 decks42 decks
10%synergy
Colossus Hammer
14%inclusion6 decks42 decks
13%synergy
Fire Nation Warship
10%inclusion1 decks10 decks
10%synergy
Candlestick
10%inclusion4 decks41 decks
9%synergy
Thran Temporal Gateway
10%inclusion4 decks42 decks
9%synergy
Manifold Key
10%inclusion4 decks42 decks
3%synergy
Confession Dial
10%inclusion4 decks42 decks
9%synergy
Sword of the Animist
10%inclusion4 decks42 decks
4%synergy
Voltaic Key
10%inclusion4 decks42 decks
4%synergy
Sword of Feast and Famine
10%inclusion4 decks42 decks
8%synergy
Crown of Gondor
10%inclusion4 decks42 decks
9%synergy
Quietus Spike
10%inclusion4 decks42 decks
8%synergy
Dragonfire Blade
8.0%inclusion2 decks25 decks
8%synergy
Lavaspur Boots
7.7%inclusion3 decks39 decks
6%synergy
Bloodforged Battle-Axe
7.1%inclusion3 decks42 decks
6%synergy
The Indomitable
7.1%inclusion3 decks42 decks
5%synergy
Hero's Blade
7.1%inclusion3 decks42 decks
7%synergy
Magnifying Glass
7.1%inclusion3 decks42 decks
7%synergy
Tamiyo's Journal
7.1%inclusion3 decks42 decks
6%synergy
The Blackstaff of Waterdeep
7.1%inclusion3 decks42 decks
7%synergy
Mjölnir, Storm Hammer
5.1%inclusion2 decks39 decks
4%synergy
Enchantments
Combat Research
38%inclusion16 decks42 decks
36%synergy
Teferi's Ageless Insight
36%inclusion15 decks42 decks
19%synergy
Wizard Class
29%inclusion12 decks42 decks
12%synergy
Aqueous Form
29%inclusion12 decks42 decks
23%synergy
Imprisoned in the Moon
29%inclusion12 decks42 decks
17%synergy
Propaganda
26%inclusion11 decks42 decks
-4%synergy
Mystic Remora
21%inclusion9 decks42 decks
-6%synergy
Ominous Seas
19%inclusion8 decks42 decks
8%synergy
Leyline of Singularity
14%inclusion6 decks42 decks
14%synergy
Sleep Magic
14%inclusion3 decks21 decks
14%synergy
Curiosity
12%inclusion5 decks42 decks
9%synergy
Case of the Filched Falcon
12%inclusion5 decks42 decks
12%synergy
Omniscience
12%inclusion5 decks42 decks
3%synergy
Witness Protection
12%inclusion5 decks42 decks
6%synergy
Storm of Saruman
12%inclusion5 decks42 decks
10%synergy
Ballad of the Black Flag
10%inclusion4 decks39 decks
10%synergy
Waterbender Ascension
10%inclusion1 decks10 decks
6%synergy
Curious Inquiry
10%inclusion4 decks41 decks
9%synergy
Scroll of Isildur
10%inclusion4 decks42 decks
9%synergy
Reconnaissance Mission
10%inclusion4 decks42 decks
3%synergy
Telepathy
10%inclusion4 decks42 decks
7%synergy
Stormchaser's Talent
8.1%inclusion3 decks37 decks
7%synergy
Hold for Questioning
7.1%inclusion3 decks42 decks
7%synergy
Thopter Spy Network
7.1%inclusion3 decks42 decks
-1%synergy
Aether Tunnel
7.1%inclusion3 decks42 decks
6%synergy
Curious Obsession
7.1%inclusion3 decks42 decks
6%synergy
Extravagant Replication
7.1%inclusion3 decks42 decks
4%synergy
Training Grounds
7.1%inclusion3 decks42 decks
0%synergy
Marit Lage's Slumber
7.1%inclusion3 decks42 decks
7%synergy
Trail of Evidence
7.1%inclusion3 decks42 decks
6%synergy
Crab Umbra
7.1%inclusion3 decks42 decks
6%synergy
Thassa's Ire
7.1%inclusion3 decks42 decks
7%synergy
Fortune Teller's Talent
5.4%inclusion2 decks37 decks
5%synergy
Planeswalkers
Kaito, Cunning Infiltrator
15%inclusion5 decks34 decks
13%synergy
Kasmina, Enigmatic Mentor
12%inclusion5 decks42 decks
10%synergy
Mordenkainen
10%inclusion4 decks42 decks
6%synergy
Teferi, Master of Time
10%inclusion4 decks42 decks
4%synergy
Jace, Wielder of Mysteries
7.1%inclusion3 decks42 decks
-8%synergy
Teferi, Temporal Pilgrim
7.1%inclusion3 decks42 decks
2%synergy
Jace, the Mind Sculptor
7.1%inclusion3 decks42 decks
4%synergy
Utility Lands
Reliquary Tower
50%inclusion21 decks42 decks
-6%synergy
Mystic Sanctuary
48%inclusion20 decks42 decks
-3%synergy
Minamo, School at Water's Edge
40%inclusion17 decks42 decks
28%synergy
Castle Vantress
36%inclusion15 decks42 decks
17%synergy
Otawara, Soaring City
36%inclusion15 decks42 decks
10%synergy
Lonely Sandbar
31%inclusion13 decks42 decks
17%synergy
Nykthos, Shrine to Nyx
31%inclusion13 decks42 decks
15%synergy
War Room
24%inclusion10 decks42 decks
8%synergy
Agna Qel'a
20%inclusion2 decks10 decks
12%synergy
Academy Ruins
19%inclusion8 decks42 decks
1%synergy
Rogue's Passage
17%inclusion7 decks42 decks
2%synergy
Dark Depths
14%inclusion6 decks42 decks
13%synergy
Seat of the Synod
14%inclusion6 decks42 decks
-4%synergy
Seafarer's Quay
14%inclusion6 decks42 decks
14%synergy
Urza's Saga
14%inclusion6 decks42 decks
-2%synergy
Hall of Storm Giants
12%inclusion5 decks42 decks
9%synergy
Buried Ruin
10%inclusion4 decks42 decks
-3%synergy
Thespian's Stage
10%inclusion4 decks42 decks
7%synergy
Great Hall of the Citadel
10%inclusion4 decks42 decks
9%synergy
Mistrise Village
7.1%inclusion2 decks28 decks
-2%synergy
Tyrite Sanctum
7.1%inclusion3 decks42 decks
5%synergy
Halimar Depths
7.1%inclusion3 decks42 decks
-3%synergy
Labyrinth of Skophos
7.1%inclusion3 decks42 decks
7%synergy
Temple of the False God
7.1%inclusion3 decks42 decks
-3%synergy
The Surgical Bay
7.1%inclusion3 decks42 decks
5%synergy
Archway of Innovation
5.1%inclusion2 decks39 decks
-6%synergy
Sunken Palace
5.1%inclusion2 decks39 decks
1%synergy
Mana Artifacts
Sol Ring
71%inclusion30 decks42 decks
-14%synergy
Relic of Legends
50%inclusion21 decks42 decks
48%synergy
Arcane Signet
40%inclusion17 decks42 decks
-25%synergy
Patriar's Seal
40%inclusion17 decks42 decks
38%synergy
Midnight Clock
36%inclusion15 decks42 decks
15%synergy
Thought Vessel
33%inclusion14 decks42 decks
-18%synergy
Crystal Skull, Isu Spyglass
31%inclusion12 decks39 decks
26%synergy
Mind Stone
26%inclusion11 decks42 decks
-10%synergy
Sky Diamond
24%inclusion10 decks42 decks
1%synergy
Throne of Eldraine
19%inclusion8 decks42 decks
10%synergy
Commander's Sphere
17%inclusion7 decks42 decks
7%synergy
Mox Amber
17%inclusion7 decks42 decks
9%synergy
Thran Dynamo
14%inclusion6 decks42 decks
1%synergy
Caged Sun
14%inclusion6 decks42 decks
3%synergy
Decanter of Endless Water
14%inclusion6 decks42 decks
0%synergy
The Irencrag
12%inclusion5 decks42 decks
11%synergy
Nyx Lotus
12%inclusion5 decks42 decks
8%synergy
Bender's Waterskin
7.1%inclusion1 decks14 decks
-1%synergy
Fellwar Stone
7.1%inclusion3 decks42 decks
-13%synergy
Everflowing Chalice
7.1%inclusion3 decks42 decks
-9%synergy
Five Hundred Year Diary
7.1%inclusion3 decks42 decks
6%synergy
Lands
Island
88%inclusion37 decks42 decks
-5%synergy
Myriad Landscape
24%inclusion10 decks42 decks
-2%synergy
Plaza of Heroes
19%inclusion8 decks42 decks
18%synergy
The Grey Havens
14%inclusion6 decks42 decks
14%synergy
Snow-Covered Island
12%inclusion5 decks42 decks
4%synergy
Silundi Vision
7.1%inclusion3 decks42 decks
2%synergy
Abstergo Entertainment
5.1%inclusion2 decks39 decks
4%synergy
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