K-9, Mark I (Commander) - Upgraded

K-9, Mark I
Rank #3,576
8decks
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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
100%inclusion8 decks8 decks
97%synergy
Rivendell
88%inclusion7 decks8 decks
76%synergy
Bident of Thassa
75%inclusion6 decks8 decks
63%synergy
Sakashima the Impostor
63%inclusion5 decks8 decks
59%synergy
Heroes' Podium
50%inclusion4 decks8 decks
50%synergy
The Peregrine Dynamo
50%inclusion4 decks8 decks
50%synergy
Iymrith, Desert Doom
50%inclusion4 decks8 decks
50%synergy
Empress Galina
50%inclusion4 decks8 decks
49%synergy
Callaphe, Beloved of the Sea
50%inclusion4 decks8 decks
49%synergy
Lonely Sandbar
63%inclusion5 decks8 decks
49%synergy
Top Cards
Counterspell
88%inclusion7 decks8 decks
21%synergy
Ponder
75%inclusion6 decks8 decks
46%synergy
Brainstorm
75%inclusion6 decks8 decks
34%synergy
Sapphire Medallion
75%inclusion6 decks8 decks
16%synergy
High Tide
75%inclusion6 decks8 decks
31%synergy
Rapid Hybridization
63%inclusion5 decks8 decks
28%synergy
Pongify
63%inclusion5 decks8 decks
22%synergy
Frantic Search
63%inclusion5 decks8 decks
32%synergy
Aetherize
63%inclusion5 decks8 decks
33%synergy
An Offer You Can't Refuse
50%inclusion4 decks8 decks
13%synergy
Game Changers
Cyclonic Rift
38%inclusion3 decks8 decks
4%synergy
Thassa's Oracle
25%inclusion2 decks8 decks
12%synergy
Ancient Tomb
25%inclusion2 decks8 decks
13%synergy
Rhystic Study
25%inclusion2 decks8 decks
-7%synergy
Fierce Guardianship
25%inclusion2 decks8 decks
2%synergy
Mystical Tutor
25%inclusion2 decks8 decks
2%synergy
The One Ring
13%inclusion1 decks8 decks
0%synergy
Creatures
Teferi, Mage of Zhalfir
50%inclusion4 decks8 decks
46%synergy
The Reality Chip
50%inclusion4 decks8 decks
37%synergy
Eluge, the Shoreless Sea
38%inclusion3 decks8 decks
29%synergy
Kiora, the Rising Tide
38%inclusion3 decks8 decks
35%synergy
Kira, Great Glass-Spinner
38%inclusion3 decks8 decks
35%synergy
Adric, Mathematical Genius
38%inclusion3 decks8 decks
37%synergy
Baral, Chief of Compliance
38%inclusion3 decks8 decks
26%synergy
Nezahal, Primal Tide
38%inclusion3 decks8 decks
30%synergy
Grazilaxx, Illithid Scholar
38%inclusion3 decks8 decks
36%synergy
Esior, Wardwing Familiar
38%inclusion3 decks8 decks
35%synergy
The Blue Spirit
33%inclusion1 decks3 decks
33%synergy
The Mechanist, Aerial Artisan
33%inclusion1 decks3 decks
31%synergy
Forecasting Fortune Teller
33%inclusion1 decks3 decks
33%synergy
Solemn Simulacrum
25%inclusion2 decks8 decks
3%synergy
Sicarian Infiltrator
25%inclusion2 decks8 decks
24%synergy
Kami of the Crescent Moon
25%inclusion2 decks8 decks
22%synergy
Malcolm, Alluring Scoundrel
25%inclusion2 decks8 decks
20%synergy
Beguiler of Wills
25%inclusion2 decks8 decks
24%synergy
Toothy, Imaginary Friend
25%inclusion2 decks8 decks
22%synergy
Aquamoeba
25%inclusion2 decks8 decks
25%synergy
Thassa, God of the Sea
25%inclusion2 decks8 decks
21%synergy
Chasm Skulker
25%inclusion2 decks8 decks
12%synergy
Cosima, God of the Voyage
25%inclusion2 decks8 decks
24%synergy
Hermitic Nautilus
25%inclusion2 decks8 decks
25%synergy
Ascendant Spirit
25%inclusion2 decks8 decks
25%synergy
Spark Double
25%inclusion2 decks8 decks
12%synergy
Unctus, Grand Metatect
25%inclusion2 decks8 decks
19%synergy
Malcator's Watcher
25%inclusion2 decks8 decks
24%synergy
Mathise, Surge Channeler
25%inclusion2 decks8 decks
25%synergy
Fblthp, the Lost
25%inclusion2 decks8 decks
24%synergy
Traxos, Scourge of Kroog
25%inclusion2 decks8 decks
24%synergy
Aarakocra Sneak
25%inclusion2 decks8 decks
25%synergy
Rayne, Academy Chancellor
25%inclusion2 decks8 decks
25%synergy
Looter il-Kor
25%inclusion2 decks8 decks
23%synergy
Tetsuko Umezawa, Fugitive
25%inclusion2 decks8 decks
22%synergy
Minn, Wily Illusionist
25%inclusion2 decks8 decks
22%synergy
Urza, Lord High Artificer
25%inclusion2 decks8 decks
17%synergy
Ledger Shredder
25%inclusion2 decks8 decks
18%synergy
Spider-Man 2099, Miguel O'Hara
25%inclusion1 decks4 decks
25%synergy
Skill Borrower
25%inclusion2 decks8 decks
25%synergy
Mockingbird
25%inclusion2 decks8 decks
21%synergy
Clever Impersonator
25%inclusion2 decks8 decks
19%synergy
Lu Xun, Scholar General
25%inclusion2 decks8 decks
25%synergy
Jin-Gitaxias, Progress Tyrant
25%inclusion2 decks8 decks
17%synergy
Starwinder
25%inclusion1 decks4 decks
22%synergy
Ultimecia, Temporal Threat
20%inclusion1 decks5 decks
19%synergy
Gogo, Master of Mimicry
20%inclusion1 decks5 decks
18%synergy
Ultima, Origin of Oblivion
20%inclusion1 decks5 decks
20%synergy
Ghost of Ramirez DePietro
13%inclusion1 decks8 decks
12%synergy
Elrond, Lord of Rivendell
13%inclusion1 decks8 decks
12%synergy
Instants
Arcane Denial
50%inclusion4 decks8 decks
14%synergy
Reality Shift
38%inclusion3 decks8 decks
11%synergy
Glorious Gale
38%inclusion3 decks8 decks
37%synergy
Desynchronization
38%inclusion3 decks8 decks
33%synergy
Lost Days
33%inclusion1 decks3 decks
33%synergy
Soothing of Sméagol
25%inclusion2 decks8 decks
25%synergy
Twisted Image
25%inclusion2 decks8 decks
22%synergy
Negate
25%inclusion2 decks8 decks
-13%synergy
Mana Drain
25%inclusion2 decks8 decks
-2%synergy
Archmage's Charm
25%inclusion2 decks8 decks
8%synergy
Dreadful as the Storm
25%inclusion2 decks8 decks
25%synergy
Sapphire Charm
13%inclusion1 decks8 decks
12%synergy
Consider
13%inclusion1 decks8 decks
-2%synergy
Secrets of the Key
13%inclusion1 decks8 decks
12%synergy
Metamorphose
13%inclusion1 decks8 decks
12%synergy
Swan Song
13%inclusion1 decks8 decks
-14%synergy
Tale's End
13%inclusion1 decks8 decks
9%synergy
Submerge
13%inclusion1 decks8 decks
11%synergy
Reins of Power
13%inclusion1 decks8 decks
10%synergy
Cackling Counterpart
13%inclusion1 decks8 decks
10%synergy
Cryptic Command
13%inclusion1 decks8 decks
1%synergy
Blue Sun's Zenith
13%inclusion1 decks8 decks
1%synergy
Disallow
13%inclusion1 decks8 decks
6%synergy
Confirm Suspicions
13%inclusion1 decks8 decks
12%synergy
Deduce
13%inclusion1 decks8 decks
11%synergy
Theoretical Duplication
13%inclusion1 decks8 decks
12%synergy
Sorceries
Arwen's Gift
38%inclusion3 decks8 decks
37%synergy
Lórien Revealed
38%inclusion3 decks8 decks
29%synergy
Preordain
38%inclusion3 decks8 decks
14%synergy
Ember Island Production
33%inclusion1 decks3 decks
32%synergy
Horses of the Bruinen
25%inclusion2 decks8 decks
25%synergy
Birthday Escape
25%inclusion2 decks8 decks
24%synergy
Serum Visions
25%inclusion2 decks8 decks
15%synergy
Windfall
13%inclusion1 decks8 decks
-10%synergy
Hard Evidence
13%inclusion1 decks8 decks
11%synergy
Exhaustion
13%inclusion1 decks8 decks
12%synergy
Quantum Misalignment
13%inclusion1 decks8 decks
9%synergy
Enter the Infinite
13%inclusion1 decks8 decks
8%synergy
Karn's Temporal Sundering
13%inclusion1 decks8 decks
10%synergy
Inaction Injunction
13%inclusion1 decks8 decks
12%synergy
Quasiduplicate
13%inclusion1 decks8 decks
10%synergy
Press for Answers
13%inclusion1 decks8 decks
12%synergy
Irenicus's Vile Duplication
13%inclusion1 decks8 decks
4%synergy
Power of Persuasion
13%inclusion1 decks8 decks
12%synergy
Nanogene Conversion
13%inclusion1 decks8 decks
11%synergy
Political Trickery
13%inclusion1 decks8 decks
12%synergy
Utility Artifacts
Champion's Helm
50%inclusion4 decks8 decks
48%synergy
Blackblade Reforged
50%inclusion4 decks8 decks
45%synergy
Mithril Coat
38%inclusion3 decks8 decks
34%synergy
Mirror Box
38%inclusion3 decks8 decks
35%synergy
Lightning Greaves
38%inclusion3 decks8 decks
11%synergy
Swiftfoot Boots
38%inclusion3 decks8 decks
9%synergy
Excalibur, Sword of Eden
38%inclusion3 decks8 decks
36%synergy
Confession Dial
25%inclusion2 decks8 decks
25%synergy
Helm of the Host
25%inclusion2 decks8 decks
21%synergy
Hero's Blade
25%inclusion2 decks8 decks
25%synergy
Crown of Gondor
25%inclusion2 decks8 decks
25%synergy
Ichormoon Gauntlet
25%inclusion2 decks8 decks
23%synergy
Brotherhood Regalia
25%inclusion2 decks8 decks
23%synergy
Quietus Spike
13%inclusion1 decks8 decks
11%synergy
Cloud Key
13%inclusion1 decks8 decks
5%synergy
Thran Temporal Gateway
13%inclusion1 decks8 decks
12%synergy
Sword of the Chosen
13%inclusion1 decks8 decks
12%synergy
Tamiyo's Journal
13%inclusion1 decks8 decks
11%synergy
Ransom Note
13%inclusion1 decks8 decks
12%synergy
Mirror of Galadriel
13%inclusion1 decks8 decks
12%synergy
Ace's Baseball Bat
13%inclusion1 decks8 decks
12%synergy
Mirror Gallery
13%inclusion1 decks8 decks
12%synergy
Konda's Banner
13%inclusion1 decks8 decks
12%synergy
Bloodthirsty Blade
13%inclusion1 decks8 decks
12%synergy
Commander's Plate
13%inclusion1 decks8 decks
8%synergy
Weatherlight
13%inclusion1 decks8 decks
12%synergy
Andúril, Flame of the West
13%inclusion1 decks8 decks
12%synergy
Magnifying Glass
13%inclusion1 decks8 decks
12%synergy
Thaumatic Compass
13%inclusion1 decks8 decks
12%synergy
Mjölnir, Storm Hammer
13%inclusion1 decks8 decks
11%synergy
Hero's Heirloom
13%inclusion1 decks8 decks
12%synergy
Assassin Gauntlet
13%inclusion1 decks8 decks
12%synergy
Blade of Selves
13%inclusion1 decks8 decks
11%synergy
Kefnet's Monument
13%inclusion1 decks8 decks
6%synergy
Enchantments
Wizard Class
50%inclusion4 decks8 decks
33%synergy
Combat Research
50%inclusion4 decks8 decks
48%synergy
Ominous Seas
38%inclusion3 decks8 decks
26%synergy
Honest Work
33%inclusion1 decks3 decks
32%synergy
Teferi's Ageless Insight
25%inclusion2 decks8 decks
8%synergy
Aqueous Form
25%inclusion2 decks8 decks
20%synergy
Imprisoned in the Moon
25%inclusion2 decks8 decks
13%synergy
Mystic Remora
25%inclusion2 decks8 decks
-2%synergy
Scroll of Isildur
25%inclusion2 decks8 decks
24%synergy
Cryoshatter
25%inclusion1 decks4 decks
24%synergy
Hold for Questioning
13%inclusion1 decks8 decks
12%synergy
Verity Circle
13%inclusion1 decks8 decks
11%synergy
Case of the Filched Falcon
13%inclusion1 decks8 decks
12%synergy
Illusory Gains
13%inclusion1 decks8 decks
12%synergy
Air Bladder
13%inclusion1 decks8 decks
12%synergy
Nerd Rage
13%inclusion1 decks8 decks
9%synergy
Psychic Impetus
13%inclusion1 decks8 decks
12%synergy
Chronic Flooding
13%inclusion1 decks8 decks
12%synergy
Chant of the Skifsang
13%inclusion1 decks8 decks
12%synergy
Octopus Umbra
13%inclusion1 decks8 decks
12%synergy
Extravagant Replication
13%inclusion1 decks8 decks
10%synergy
Contempt
13%inclusion1 decks8 decks
12%synergy
Marit Lage's Slumber
13%inclusion1 decks8 decks
12%synergy
Curious Inquiry
13%inclusion1 decks8 decks
12%synergy
Dictate of Kruphix
13%inclusion1 decks8 decks
9%synergy
Followed Footsteps
13%inclusion1 decks8 decks
12%synergy
Trail of Evidence
13%inclusion1 decks8 decks
12%synergy
Alexi's Cloak
13%inclusion1 decks8 decks
12%synergy
Propaganda
13%inclusion1 decks8 decks
-18%synergy
Betrayal
13%inclusion1 decks8 decks
12%synergy
Agoraphobia
13%inclusion1 decks8 decks
12%synergy
Leyline of Singularity
13%inclusion1 decks8 decks
12%synergy
Curse of Verbosity
13%inclusion1 decks8 decks
11%synergy
Storm of Saruman
13%inclusion1 decks8 decks
11%synergy
Backfire
13%inclusion1 decks8 decks
12%synergy
Ballad of the Black Flag
13%inclusion1 decks8 decks
12%synergy
Planeswalkers
Teferi, Temporal Archmage
25%inclusion2 decks8 decks
24%synergy
Jace, Wielder of Mysteries
25%inclusion2 decks8 decks
10%synergy
Teferi, Temporal Pilgrim
25%inclusion2 decks8 decks
20%synergy
Mordenkainen
25%inclusion2 decks8 decks
22%synergy
Vronos, Masked Inquisitor
25%inclusion2 decks8 decks
25%synergy
Jace, the Mind Sculptor
25%inclusion2 decks8 decks
22%synergy
Jace Beleren
25%inclusion2 decks8 decks
22%synergy
Kasmina, Enigmatic Mentor
25%inclusion2 decks8 decks
23%synergy
Teferi, Master of Time
25%inclusion2 decks8 decks
20%synergy
Teferi, Timeless Voyager
13%inclusion1 decks8 decks
12%synergy
Jace, Cunning Castaway
13%inclusion1 decks8 decks
12%synergy
Jace, Mirror Mage
13%inclusion1 decks8 decks
11%synergy
Utility Lands
Mystic Sanctuary
75%inclusion6 decks8 decks
25%synergy
Reliquary Tower
75%inclusion6 decks8 decks
19%synergy
Castle Vantress
63%inclusion5 decks8 decks
44%synergy
Otawara, Soaring City
63%inclusion5 decks8 decks
37%synergy
Nykthos, Shrine to Nyx
50%inclusion4 decks8 decks
34%synergy
Minamo, School at Water's Edge
38%inclusion3 decks8 decks
25%synergy
War Room
38%inclusion3 decks8 decks
22%synergy
Academy Ruins
38%inclusion3 decks8 decks
19%synergy
Agna Qel'a
33%inclusion1 decks3 decks
26%synergy
Hall of Storm Giants
25%inclusion2 decks8 decks
23%synergy
Urza's Saga
25%inclusion2 decks8 decks
8%synergy
Halimar Depths
25%inclusion2 decks8 decks
15%synergy
Dark Depths
25%inclusion2 decks8 decks
24%synergy
Dungeon Descent
25%inclusion2 decks8 decks
25%synergy
Temple of the False God
25%inclusion2 decks8 decks
15%synergy
Seafarer's Quay
25%inclusion2 decks8 decks
25%synergy
Tyrite Sanctum
13%inclusion1 decks8 decks
11%synergy
Seat of the Synod
13%inclusion1 decks8 decks
-6%synergy
Nephalia Academy
13%inclusion1 decks8 decks
12%synergy
Thespian's Stage
13%inclusion1 decks8 decks
10%synergy
Great Hall of the Citadel
13%inclusion1 decks8 decks
12%synergy
Mana Artifacts
Sol Ring
63%inclusion5 decks8 decks
-23%synergy
Midnight Clock
63%inclusion5 decks8 decks
42%synergy
Relic of Legends
50%inclusion4 decks8 decks
48%synergy
Patriar's Seal
50%inclusion4 decks8 decks
48%synergy
Caged Sun
38%inclusion3 decks8 decks
26%synergy
Throne of Eldraine
38%inclusion3 decks8 decks
28%synergy
Crystal Skull, Isu Spyglass
38%inclusion3 decks8 decks
33%synergy
Mox Amber
38%inclusion3 decks8 decks
30%synergy
Arcane Signet
25%inclusion2 decks8 decks
-40%synergy
Sky Diamond
25%inclusion2 decks8 decks
2%synergy
Thought Vessel
25%inclusion2 decks8 decks
-27%synergy
Lapis Orb of Dragonkind
25%inclusion2 decks8 decks
25%synergy
Misleading Signpost
25%inclusion2 decks8 decks
21%synergy
Altar of the Pantheon
13%inclusion1 decks8 decks
12%synergy
The Irencrag
13%inclusion1 decks8 decks
12%synergy
Five Hundred Year Diary
13%inclusion1 decks8 decks
12%synergy
Mind Stone
13%inclusion1 decks8 decks
-23%synergy
Decanter of Endless Water
13%inclusion1 decks8 decks
-1%synergy
Laser Screwdriver
13%inclusion1 decks8 decks
12%synergy
Nyx Lotus
13%inclusion1 decks8 decks
9%synergy
Lands
Island
75%inclusion6 decks8 decks
-19%synergy
Snow-Covered Island
25%inclusion2 decks8 decks
17%synergy
Plaza of Heroes
25%inclusion2 decks8 decks
24%synergy
Myriad Landscape
13%inclusion1 decks8 decks
-13%synergy
Abstergo Entertainment
13%inclusion1 decks8 decks
12%synergy
The Grey Havens
13%inclusion1 decks8 decks
12%synergy
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