K-9, Mark I (Commander)

K-9, Mark I
Rank #3,464
43decks
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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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Ioreth of the Healing House
72%inclusion31 decks43 decks
69%synergy
Iymrith, Desert Doom
56%inclusion24 decks43 decks
55%synergy
Rivendell
65%inclusion28 decks43 decks
54%synergy
Callaphe, Beloved of the Sea
44%inclusion19 decks43 decks
43%synergy
Thassa, God of the Sea
47%inclusion20 decks43 decks
43%synergy
Grazilaxx, Illithid Scholar
44%inclusion19 decks43 decks
42%synergy
Combat Research
42%inclusion18 decks43 decks
40%synergy
Nezahal, Primal Tide
47%inclusion20 decks43 decks
38%synergy
Champion's Helm
40%inclusion17 decks43 decks
38%synergy
Bident of Thassa
49%inclusion21 decks43 decks
37%synergy
Top Cards
Sapphire Medallion
63%inclusion27 decks43 decks
5%synergy
Aetherize
56%inclusion24 decks43 decks
27%synergy
Brainstorm
56%inclusion24 decks43 decks
15%synergy
Counterspell
56%inclusion24 decks43 decks
-11%synergy
Pongify
49%inclusion21 decks43 decks
9%synergy
The Reality Chip
49%inclusion21 decks43 decks
36%synergy
An Offer You Can't Refuse
47%inclusion20 decks43 decks
9%synergy
Ponder
44%inclusion19 decks43 decks
15%synergy
High Tide
44%inclusion19 decks43 decks
0%synergy
Preordain
42%inclusion18 decks43 decks
18%synergy
Game Changers
Cyclonic Rift
30%inclusion13 decks43 decks
-4%synergy
Fierce Guardianship
19%inclusion8 decks43 decks
-4%synergy
Mystical Tutor
14%inclusion6 decks43 decks
-9%synergy
Rhystic Study
12%inclusion5 decks43 decks
-21%synergy
Ancient Tomb
7.0%inclusion3 decks43 decks
-5%synergy
Creatures
Eluge, the Shoreless Sea
41%inclusion16 decks39 decks
33%synergy
Teferi, Mage of Zhalfir
40%inclusion17 decks43 decks
36%synergy
Kira, Great Glass-Spinner
37%inclusion16 decks43 decks
34%synergy
The Blue Spirit
33%inclusion4 decks12 decks
33%synergy
Unctus, Grand Metatect
33%inclusion14 decks43 decks
27%synergy
Solemn Simulacrum
33%inclusion14 decks43 decks
10%synergy
Atemsis, All-Seeing
33%inclusion14 decks43 decks
31%synergy
Sun Quan, Lord of Wu
30%inclusion13 decks43 decks
30%synergy
Malcolm, Alluring Scoundrel
30%inclusion13 decks43 decks
25%synergy
Baral, Chief of Compliance
28%inclusion12 decks43 decks
16%synergy
Kairi, the Swirling Sky
28%inclusion12 decks43 decks
27%synergy
Adric, Mathematical Genius
28%inclusion12 decks43 decks
27%synergy
Venser, Shaper Savant
26%inclusion11 decks43 decks
19%synergy
Esior, Wardwing Familiar
23%inclusion10 decks43 decks
20%synergy
Jin-Gitaxias, Progress Tyrant
23%inclusion10 decks43 decks
15%synergy
Kiora, the Rising Tide
22%inclusion8 decks36 decks
19%synergy
Piper Wright, Publick Reporter
21%inclusion9 decks43 decks
20%synergy
Gadwick, the Wizened
21%inclusion9 decks43 decks
17%synergy
Empress Galina
21%inclusion9 decks43 decks
20%synergy
Jin-Gitaxias
21%inclusion9 decks43 decks
18%synergy
Thryx, the Sudden Storm
21%inclusion9 decks43 decks
20%synergy
Sakashima the Impostor
21%inclusion9 decks43 decks
18%synergy
Ultimecia, Temporal Threat
21%inclusion5 decks24 decks
20%synergy
The Peregrine Dynamo
19%inclusion8 decks43 decks
18%synergy
Arcanis the Omnipotent
19%inclusion8 decks43 decks
12%synergy
Sakashima of a Thousand Faces
19%inclusion8 decks43 decks
12%synergy
Jhoira's Familiar
19%inclusion8 decks43 decks
13%synergy
The Mechanist, Aerial Artisan
17%inclusion2 decks12 decks
14%synergy
Forecasting Fortune Teller
17%inclusion2 decks12 decks
16%synergy
Lu Xun, Scholar General
16%inclusion7 decks43 decks
16%synergy
Jin-Gitaxias, Core Augur
16%inclusion7 decks43 decks
11%synergy
Curie, Emergent Intelligence
16%inclusion7 decks43 decks
16%synergy
Artificer's Assistant
16%inclusion7 decks43 decks
13%synergy
The Mindskinner
16%inclusion6 decks37 decks
13%synergy
Vnwxt, Verbose Host
16%inclusion5 decks31 decks
14%synergy
Lorthos, the Tidemaker
14%inclusion6 decks43 decks
13%synergy
Emry, Lurker of the Loch
14%inclusion6 decks43 decks
2%synergy
Urza, Lord High Artificer
14%inclusion6 decks43 decks
6%synergy
Osgood, Operation Double
14%inclusion6 decks43 decks
13%synergy
Talrand, Sky Summoner
14%inclusion6 decks43 decks
0%synergy
Spider-Man 2099, Miguel O'Hara
13%inclusion2 decks16 decks
12%synergy
Jill, Shiva's Dominant
12%inclusion3 decks25 decks
10%synergy
Starwinder
12%inclusion2 decks17 decks
9%synergy
Volo, Itinerant Scholar
12%inclusion5 decks43 decks
12%synergy
Forensic Gadgeteer
12%inclusion5 decks43 decks
1%synergy
Hope of Ghirapur
12%inclusion5 decks43 decks
10%synergy
Ulamog, the Ceaseless Hunger
12%inclusion5 decks43 decks
10%synergy
Phyrexian Metamorph
12%inclusion5 decks43 decks
-7%synergy
Cosima, God of the Voyage
12%inclusion5 decks43 decks
11%synergy
Tetsuko Umezawa, Fugitive
12%inclusion5 decks43 decks
9%synergy
Instants
Rapid Hybridization
42%inclusion18 decks43 decks
7%synergy
Negate
37%inclusion16 decks43 decks
-1%synergy
Frantic Search
37%inclusion16 decks43 decks
7%synergy
Reality Shift
37%inclusion16 decks43 decks
10%synergy
Arcane Denial
35%inclusion15 decks43 decks
-1%synergy
Opt
35%inclusion15 decks43 decks
10%synergy
Desynchronization
34%inclusion14 decks41 decks
29%synergy
Archmage's Charm
28%inclusion12 decks43 decks
11%synergy
Consider
26%inclusion11 decks43 decks
11%synergy
Mana Drain
19%inclusion8 decks43 decks
-8%synergy
Louisoix's Sacrifice
17%inclusion4 decks23 decks
16%synergy
Lost Days
17%inclusion2 decks12 decks
16%synergy
Glorious Gale
16%inclusion7 decks43 decks
16%synergy
Spell Pierce
16%inclusion7 decks43 decks
8%synergy
Swan Song
14%inclusion6 decks43 decks
-12%synergy
Mystic Confluence
14%inclusion6 decks43 decks
5%synergy
Wash Away
14%inclusion6 decks43 decks
9%synergy
Magic Damper
14%inclusion3 decks22 decks
10%synergy
Bounce Off
13%inclusion4 decks31 decks
12%synergy
Sublime Epiphany
12%inclusion5 decks43 decks
5%synergy
Soothing of Sméagol
12%inclusion5 decks43 decks
11%synergy
Disallow
12%inclusion5 decks43 decks
5%synergy
Cryptic Command
12%inclusion5 decks43 decks
0%synergy
Deduce
12%inclusion5 decks43 decks
10%synergy
Dispel
12%inclusion5 decks43 decks
2%synergy
Twiddle
12%inclusion5 decks43 decks
8%synergy
Rewind
9.3%inclusion4 decks43 decks
-3%synergy
Twisted Image
9.3%inclusion4 decks43 decks
6%synergy
Stoic Rebuttal
9.3%inclusion4 decks43 decks
7%synergy
Tale's End
9.3%inclusion4 decks43 decks
6%synergy
Dreadful as the Storm
9.3%inclusion4 decks43 decks
9%synergy
Evacuation
9.3%inclusion4 decks43 decks
2%synergy
Muddle the Mixture
9.3%inclusion4 decks43 decks
-7%synergy
Slip Out the Back
9.3%inclusion4 decks43 decks
2%synergy
Phantom Interference
7.3%inclusion3 decks41 decks
7%synergy
Envelop
7.0%inclusion3 decks43 decks
7%synergy
Vault Skyward
7.0%inclusion3 decks43 decks
7%synergy
Secrets of the Key
7.0%inclusion3 decks43 decks
6%synergy
Confirm Suspicions
7.0%inclusion3 decks43 decks
6%synergy
Cerulean Wisps
7.0%inclusion3 decks43 decks
4%synergy
Silundi Vision
7.0%inclusion3 decks43 decks
2%synergy
Shore Up
7.0%inclusion3 decks43 decks
2%synergy
March of Swirling Mist
7.0%inclusion3 decks43 decks
-1%synergy
Into the Flood Maw
5.1%inclusion2 decks39 decks
-1%synergy
Sorceries
Arwen's Gift
37%inclusion16 decks43 decks
37%synergy
Serum Visions
23%inclusion10 decks43 decks
13%synergy
Birthday Escape
21%inclusion9 decks43 decks
20%synergy
Lórien Revealed
21%inclusion9 decks43 decks
12%synergy
Karn's Temporal Sundering
16%inclusion7 decks43 decks
14%synergy
Ravenform
16%inclusion7 decks43 decks
7%synergy
Will of the Temur
15%inclusion4 decks27 decks
13%synergy
Windfall
14%inclusion6 decks43 decks
-9%synergy
Enter the Enigma
14%inclusion5 decks37 decks
7%synergy
Irenicus's Vile Duplication
12%inclusion5 decks43 decks
3%synergy
Void Snare
9.3%inclusion4 decks43 decks
9%synergy
Time Stretch
9.3%inclusion4 decks43 decks
5%synergy
Hard Evidence
9.3%inclusion4 decks43 decks
8%synergy
Quantum Misalignment
9.3%inclusion4 decks43 decks
6%synergy
Quasiduplicate
9.3%inclusion4 decks43 decks
7%synergy
Fabricate
7.0%inclusion3 decks43 decks
-14%synergy
Devastation Tide
7.0%inclusion3 decks43 decks
4%synergy
Traverse Eternity
7.0%inclusion3 decks43 decks
6%synergy
Horses of the Bruinen
7.0%inclusion3 decks43 decks
7%synergy
Careful Study
7.0%inclusion3 decks43 decks
5%synergy
Press for Answers
7.0%inclusion3 decks43 decks
7%synergy
Utility Artifacts
Swiftfoot Boots
42%inclusion18 decks43 decks
14%synergy
Blackblade Reforged
35%inclusion15 decks43 decks
30%synergy
Heroes' Podium
35%inclusion15 decks43 decks
35%synergy
Excalibur, Sword of Eden
32%inclusion13 decks41 decks
30%synergy
Wayfarer's Bauble
28%inclusion12 decks43 decks
10%synergy
Helm of the Host
26%inclusion11 decks43 decks
22%synergy
Mirror Box
21%inclusion9 decks43 decks
18%synergy
Lightning Greaves
21%inclusion9 decks43 decks
-5%synergy
The Key to the Vault
20%inclusion8 decks41 decks
18%synergy
Mithril Coat
19%inclusion8 decks43 decks
16%synergy
Mirror of Galadriel
19%inclusion8 decks43 decks
19%synergy
Kefnet's Monument
19%inclusion8 decks43 decks
12%synergy
Brotherhood Regalia
17%inclusion7 decks41 decks
16%synergy
Waterbending Scroll
17%inclusion2 decks12 decks
7%synergy
Commander's Plate
14%inclusion6 decks43 decks
10%synergy
Colossus Hammer
14%inclusion6 decks43 decks
13%synergy
Crown of Gondor
12%inclusion5 decks43 decks
12%synergy
Quietus Spike
9.3%inclusion4 decks43 decks
8%synergy
Candlestick
9.3%inclusion4 decks43 decks
9%synergy
Voltaic Key
9.3%inclusion4 decks43 decks
4%synergy
The Indomitable
9.3%inclusion4 decks43 decks
7%synergy
Manifold Key
9.3%inclusion4 decks43 decks
2%synergy
Sword of Feast and Famine
9.3%inclusion4 decks43 decks
8%synergy
Sword of the Animist
9.3%inclusion4 decks43 decks
4%synergy
Magnifying Glass
9.3%inclusion4 decks43 decks
9%synergy
Thran Temporal Gateway
9.3%inclusion4 decks43 decks
9%synergy
Confession Dial
9.3%inclusion4 decks43 decks
9%synergy
Weatherlight
9.3%inclusion4 decks43 decks
9%synergy
Fire Nation Warship
8.3%inclusion1 decks12 decks
8%synergy
Dragonfire Blade
7.4%inclusion2 decks27 decks
7%synergy
Lavaspur Boots
7.3%inclusion3 decks41 decks
5%synergy
Mjölnir, Storm Hammer
7.3%inclusion3 decks41 decks
6%synergy
Sword of the Chosen
7.0%inclusion3 decks43 decks
7%synergy
Bessie, the Doctor's Roadster
7.0%inclusion3 decks43 decks
7%synergy
Bloodforged Battle-Axe
7.0%inclusion3 decks43 decks
6%synergy
The Blackstaff of Waterdeep
7.0%inclusion3 decks43 decks
7%synergy
Tamiyo's Journal
7.0%inclusion3 decks43 decks
6%synergy
Hero's Blade
7.0%inclusion3 decks43 decks
7%synergy
Enchantments
Teferi's Ageless Insight
35%inclusion15 decks43 decks
18%synergy
Imprisoned in the Moon
33%inclusion14 decks43 decks
21%synergy
Aqueous Form
28%inclusion12 decks43 decks
23%synergy
Wizard Class
28%inclusion12 decks43 decks
11%synergy
Propaganda
26%inclusion11 decks43 decks
-5%synergy
Mystic Remora
21%inclusion9 decks43 decks
-6%synergy
Ominous Seas
19%inclusion8 decks43 decks
8%synergy
Witness Protection
14%inclusion6 decks43 decks
8%synergy
Leyline of Singularity
14%inclusion6 decks43 decks
13%synergy
Sleep Magic
13%inclusion3 decks23 decks
13%synergy
Case of the Filched Falcon
12%inclusion5 decks43 decks
11%synergy
Omniscience
12%inclusion5 decks43 decks
3%synergy
Curious Inquiry
12%inclusion5 decks43 decks
11%synergy
Curiosity
12%inclusion5 decks43 decks
9%synergy
Ballad of the Black Flag
10%inclusion4 decks41 decks
9%synergy
Reconnaissance Mission
9.3%inclusion4 decks43 decks
3%synergy
Scroll of Isildur
9.3%inclusion4 decks43 decks
8%synergy
Telepathy
9.3%inclusion4 decks43 decks
7%synergy
Storm of Saruman
9.3%inclusion4 decks43 decks
8%synergy
Thopter Spy Network
9.3%inclusion4 decks43 decks
1%synergy
Waterbender Ascension
8.3%inclusion1 decks12 decks
5%synergy
Stormchaser's Talent
7.7%inclusion3 decks39 decks
6%synergy
Hold for Questioning
7.0%inclusion3 decks43 decks
7%synergy
Crab Umbra
7.0%inclusion3 decks43 decks
6%synergy
Coastal Piracy
7.0%inclusion3 decks43 decks
2%synergy
Aether Tunnel
7.0%inclusion3 decks43 decks
6%synergy
Curious Obsession
7.0%inclusion3 decks43 decks
6%synergy
Training Grounds
7.0%inclusion3 decks43 decks
0%synergy
Marit Lage's Slumber
7.0%inclusion3 decks43 decks
6%synergy
Trail of Evidence
7.0%inclusion3 decks43 decks
6%synergy
Thassa's Ire
7.0%inclusion3 decks43 decks
7%synergy
Fortune Teller's Talent
5.1%inclusion2 decks39 decks
4%synergy
Planeswalkers
Kaito, Cunning Infiltrator
17%inclusion6 decks36 decks
15%synergy
Kasmina, Enigmatic Mentor
12%inclusion5 decks43 decks
10%synergy
Teferi, Temporal Pilgrim
9.3%inclusion4 decks43 decks
4%synergy
Teferi, Master of Time
9.3%inclusion4 decks43 decks
4%synergy
Mordenkainen
9.3%inclusion4 decks43 decks
6%synergy
Jace, Wielder of Mysteries
7.0%inclusion3 decks43 decks
-8%synergy
Jace, the Mind Sculptor
7.0%inclusion3 decks43 decks
4%synergy
Utility Lands
Reliquary Tower
49%inclusion21 decks43 decks
-8%synergy
Mystic Sanctuary
47%inclusion20 decks43 decks
-4%synergy
Castle Vantress
40%inclusion17 decks43 decks
21%synergy
Minamo, School at Water's Edge
37%inclusion16 decks43 decks
25%synergy
Otawara, Soaring City
35%inclusion15 decks43 decks
9%synergy
Lonely Sandbar
30%inclusion13 decks43 decks
16%synergy
Nykthos, Shrine to Nyx
28%inclusion12 decks43 decks
12%synergy
War Room
23%inclusion10 decks43 decks
7%synergy
Agna Qel'a
17%inclusion2 decks12 decks
9%synergy
Seat of the Synod
16%inclusion7 decks43 decks
-2%synergy
Academy Ruins
16%inclusion7 decks43 decks
-2%synergy
Rogue's Passage
16%inclusion7 decks43 decks
1%synergy
Urza's Saga
14%inclusion6 decks43 decks
-3%synergy
Seafarer's Quay
14%inclusion6 decks43 decks
14%synergy
Dark Depths
14%inclusion6 decks43 decks
13%synergy
Great Hall of the Citadel
12%inclusion5 decks43 decks
12%synergy
Hall of Storm Giants
12%inclusion5 decks43 decks
9%synergy
Buried Ruin
9.3%inclusion4 decks43 decks
-3%synergy
Tyrite Sanctum
9.3%inclusion4 decks43 decks
8%synergy
Thespian's Stage
9.3%inclusion4 decks43 decks
7%synergy
Halimar Depths
7.0%inclusion3 decks43 decks
-3%synergy
Labyrinth of Skophos
7.0%inclusion3 decks43 decks
7%synergy
Temple of the False God
7.0%inclusion3 decks43 decks
-3%synergy
The Surgical Bay
7.0%inclusion3 decks43 decks
5%synergy
Mistrise Village
6.7%inclusion2 decks30 decks
-3%synergy
Mana Artifacts
Sol Ring
70%inclusion30 decks43 decks
-15%synergy
Relic of Legends
49%inclusion21 decks43 decks
47%synergy
Arcane Signet
44%inclusion19 decks43 decks
-21%synergy
Patriar's Seal
42%inclusion18 decks43 decks
39%synergy
Midnight Clock
37%inclusion16 decks43 decks
17%synergy
Thought Vessel
35%inclusion15 decks43 decks
-17%synergy
Crystal Skull, Isu Spyglass
32%inclusion13 decks41 decks
27%synergy
Mind Stone
28%inclusion12 decks43 decks
-8%synergy
Sky Diamond
26%inclusion11 decks43 decks
2%synergy
Commander's Sphere
21%inclusion9 decks43 decks
11%synergy
Throne of Eldraine
19%inclusion8 decks43 decks
9%synergy
Mox Amber
16%inclusion7 decks43 decks
9%synergy
Thran Dynamo
14%inclusion6 decks43 decks
1%synergy
Decanter of Endless Water
14%inclusion6 decks43 decks
0%synergy
The Irencrag
12%inclusion5 decks43 decks
11%synergy
Caged Sun
12%inclusion5 decks43 decks
0%synergy
Nyx Lotus
9.3%inclusion4 decks43 decks
5%synergy
Everflowing Chalice
7.0%inclusion3 decks43 decks
-9%synergy
Fellwar Stone
7.0%inclusion3 decks43 decks
-13%synergy
Five Hundred Year Diary
7.0%inclusion3 decks43 decks
6%synergy
Bender's Waterskin
6.3%inclusion1 decks16 decks
-3%synergy
Lands
Island
91%inclusion39 decks43 decks
-3%synergy
Myriad Landscape
26%inclusion11 decks43 decks
0%synergy
Plaza of Heroes
19%inclusion8 decks43 decks
18%synergy
The Grey Havens
16%inclusion7 decks43 decks
16%synergy
Snow-Covered Island
9.3%inclusion4 decks43 decks
1%synergy
Silundi Vision
7.0%inclusion3 decks43 decks
2%synergy
Daily Bugle Building
6.7%inclusion1 decks15 decks
6%synergy
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