K-9, Mark I (Commander) - Upgraded

K-9, Mark I
Rank #3,608
8decks
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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
77%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
High Tide
75%inclusion6 decks8 decks
31%synergy
Sapphire Medallion
75%inclusion6 decks8 decks
16%synergy
Pongify
63%inclusion5 decks8 decks
22%synergy
Rapid Hybridization
63%inclusion5 decks8 decks
28%synergy
Frantic Search
63%inclusion5 decks8 decks
32%synergy
Aetherize
63%inclusion5 decks8 decks
32%synergy
An Offer You Can't Refuse
50%inclusion4 decks8 decks
13%synergy
Game Changers
Cyclonic Rift
38%inclusion3 decks8 decks
5%synergy
Thassa's Oracle
25%inclusion2 decks8 decks
13%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
3%synergy
The One Ring
13%inclusion1 decks8 decks
0%synergy
Creatures
Teferi, Mage of Zhalfir
50%inclusion4 decks8 decks
47%synergy
The Reality Chip
50%inclusion4 decks8 decks
38%synergy
Eluge, the Shoreless Sea
38%inclusion3 decks8 decks
29%synergy
Kiora, the Rising Tide
38%inclusion3 decks8 decks
35%synergy
Adric, Mathematical Genius
38%inclusion3 decks8 decks
37%synergy
Kira, Great Glass-Spinner
38%inclusion3 decks8 decks
35%synergy
Grazilaxx, Illithid Scholar
38%inclusion3 decks8 decks
36%synergy
Esior, Wardwing Familiar
38%inclusion3 decks8 decks
35%synergy
Baral, Chief of Compliance
38%inclusion3 decks8 decks
26%synergy
Nezahal, Primal Tide
38%inclusion3 decks8 decks
30%synergy
The Mechanist, Aerial Artisan
33%inclusion1 decks3 decks
31%synergy
Forecasting Fortune Teller
33%inclusion1 decks3 decks
33%synergy
The Blue Spirit
33%inclusion1 decks3 decks
33%synergy
Solemn Simulacrum
25%inclusion2 decks8 decks
3%synergy
Beguiler of Wills
25%inclusion2 decks8 decks
24%synergy
Sicarian Infiltrator
25%inclusion2 decks8 decks
24%synergy
Unctus, Grand Metatect
25%inclusion2 decks8 decks
19%synergy
Aquamoeba
25%inclusion2 decks8 decks
25%synergy
Mathise, Surge Channeler
25%inclusion2 decks8 decks
25%synergy
Cosima, God of the Voyage
25%inclusion2 decks8 decks
24%synergy
Rayne, Academy Chancellor
25%inclusion2 decks8 decks
25%synergy
Hermitic Nautilus
25%inclusion2 decks8 decks
25%synergy
Kami of the Crescent Moon
25%inclusion2 decks8 decks
22%synergy
Ascendant Spirit
25%inclusion2 decks8 decks
25%synergy
Malcolm, Alluring Scoundrel
25%inclusion2 decks8 decks
20%synergy
Toothy, Imaginary Friend
25%inclusion2 decks8 decks
22%synergy
Mockingbird
25%inclusion2 decks8 decks
21%synergy
Fblthp, the Lost
25%inclusion2 decks8 decks
24%synergy
Aarakocra Sneak
25%inclusion2 decks8 decks
25%synergy
Traxos, Scourge of Kroog
25%inclusion2 decks8 decks
24%synergy
Tetsuko Umezawa, Fugitive
25%inclusion2 decks8 decks
22%synergy
Thassa, God of the Sea
25%inclusion2 decks8 decks
21%synergy
Chasm Skulker
25%inclusion2 decks8 decks
12%synergy
Minn, Wily Illusionist
25%inclusion2 decks8 decks
22%synergy
Clever Impersonator
25%inclusion2 decks8 decks
19%synergy
Urza, Lord High Artificer
25%inclusion2 decks8 decks
17%synergy
Ledger Shredder
25%inclusion2 decks8 decks
18%synergy
Lu Xun, Scholar General
25%inclusion2 decks8 decks
25%synergy
Jin-Gitaxias, Progress Tyrant
25%inclusion2 decks8 decks
17%synergy
Spider-Man 2099, Miguel O'Hara
25%inclusion1 decks4 decks
25%synergy
Starwinder
25%inclusion1 decks4 decks
22%synergy
Spark Double
25%inclusion2 decks8 decks
12%synergy
Skill Borrower
25%inclusion2 decks8 decks
25%synergy
Malcator's Watcher
25%inclusion2 decks8 decks
24%synergy
Looter il-Kor
25%inclusion2 decks8 decks
23%synergy
Ultima, Origin of Oblivion
20%inclusion1 decks5 decks
20%synergy
Gogo, Master of Mimicry
20%inclusion1 decks5 decks
18%synergy
Ultimecia, Temporal Threat
20%inclusion1 decks5 decks
19%synergy
Elrond, Lord of Rivendell
13%inclusion1 decks8 decks
12%synergy
Ghost of Ramirez DePietro
13%inclusion1 decks8 decks
12%synergy
Instants
Arcane Denial
50%inclusion4 decks8 decks
14%synergy
Reality Shift
38%inclusion3 decks8 decks
11%synergy
Desynchronization
38%inclusion3 decks8 decks
33%synergy
Glorious Gale
38%inclusion3 decks8 decks
37%synergy
Lost Days
33%inclusion1 decks3 decks
33%synergy
Twisted Image
25%inclusion2 decks8 decks
22%synergy
Negate
25%inclusion2 decks8 decks
-13%synergy
Soothing of Sméagol
25%inclusion2 decks8 decks
25%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
Consider
13%inclusion1 decks8 decks
-2%synergy
Secrets of the Key
13%inclusion1 decks8 decks
12%synergy
Sapphire Charm
13%inclusion1 decks8 decks
12%synergy
Blue Sun's Zenith
13%inclusion1 decks8 decks
1%synergy
Disallow
13%inclusion1 decks8 decks
6%synergy
Swan Song
13%inclusion1 decks8 decks
-14%synergy
Submerge
13%inclusion1 decks8 decks
11%synergy
Cackling Counterpart
13%inclusion1 decks8 decks
10%synergy
Cryptic Command
13%inclusion1 decks8 decks
1%synergy
Confirm Suspicions
13%inclusion1 decks8 decks
12%synergy
Deduce
13%inclusion1 decks8 decks
11%synergy
Metamorphose
13%inclusion1 decks8 decks
12%synergy
Theoretical Duplication
13%inclusion1 decks8 decks
12%synergy
Tale's End
13%inclusion1 decks8 decks
10%synergy
Reins of Power
13%inclusion1 decks8 decks
10%synergy
Sorceries
Arwen's Gift
38%inclusion3 decks8 decks
37%synergy
Preordain
38%inclusion3 decks8 decks
14%synergy
Lórien Revealed
38%inclusion3 decks8 decks
29%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
Hard Evidence
13%inclusion1 decks8 decks
11%synergy
Windfall
13%inclusion1 decks8 decks
-10%synergy
Quantum Misalignment
13%inclusion1 decks8 decks
9%synergy
Exhaustion
13%inclusion1 decks8 decks
12%synergy
Enter the Infinite
13%inclusion1 decks8 decks
8%synergy
Press for Answers
13%inclusion1 decks8 decks
12%synergy
Karn's Temporal Sundering
13%inclusion1 decks8 decks
10%synergy
Power of Persuasion
13%inclusion1 decks8 decks
12%synergy
Inaction Injunction
13%inclusion1 decks8 decks
12%synergy
Irenicus's Vile Duplication
13%inclusion1 decks8 decks
4%synergy
Nanogene Conversion
13%inclusion1 decks8 decks
11%synergy
Political Trickery
13%inclusion1 decks8 decks
12%synergy
Quasiduplicate
13%inclusion1 decks8 decks
10%synergy
Utility Artifacts
Blackblade Reforged
50%inclusion4 decks8 decks
45%synergy
Champion's Helm
50%inclusion4 decks8 decks
48%synergy
Mirror Box
38%inclusion3 decks8 decks
35%synergy
Mithril Coat
38%inclusion3 decks8 decks
34%synergy
Swiftfoot Boots
38%inclusion3 decks8 decks
9%synergy
Lightning Greaves
38%inclusion3 decks8 decks
11%synergy
Excalibur, Sword of Eden
38%inclusion3 decks8 decks
36%synergy
Confession Dial
25%inclusion2 decks8 decks
25%synergy
Brotherhood Regalia
25%inclusion2 decks8 decks
23%synergy
Hero's Blade
25%inclusion2 decks8 decks
25%synergy
Crown of Gondor
25%inclusion2 decks8 decks
25%synergy
Helm of the Host
25%inclusion2 decks8 decks
21%synergy
Ichormoon Gauntlet
25%inclusion2 decks8 decks
23%synergy
Quietus Spike
13%inclusion1 decks8 decks
11%synergy
Tamiyo's Journal
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
Ace's Baseball Bat
13%inclusion1 decks8 decks
12%synergy
Ransom Note
13%inclusion1 decks8 decks
12%synergy
Weatherlight
13%inclusion1 decks8 decks
12%synergy
Mirror of Galadriel
13%inclusion1 decks8 decks
12%synergy
Assassin Gauntlet
13%inclusion1 decks8 decks
12%synergy
Blade of Selves
13%inclusion1 decks8 decks
11%synergy
Konda's Banner
13%inclusion1 decks8 decks
12%synergy
Bloodthirsty Blade
13%inclusion1 decks8 decks
12%synergy
Kefnet's Monument
13%inclusion1 decks8 decks
6%synergy
Magnifying Glass
13%inclusion1 decks8 decks
12%synergy
Mjölnir, Storm Hammer
13%inclusion1 decks8 decks
11%synergy
Thaumatic Compass
13%inclusion1 decks8 decks
12%synergy
Mirror Gallery
13%inclusion1 decks8 decks
12%synergy
Commander's Plate
13%inclusion1 decks8 decks
8%synergy
Andúril, Flame of the West
13%inclusion1 decks8 decks
12%synergy
Hero's Heirloom
13%inclusion1 decks8 decks
12%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
Aqueous Form
25%inclusion2 decks8 decks
20%synergy
Imprisoned in the Moon
25%inclusion2 decks8 decks
13%synergy
Teferi's Ageless Insight
25%inclusion2 decks8 decks
8%synergy
Cryoshatter
25%inclusion1 decks4 decks
24%synergy
Mystic Remora
25%inclusion2 decks8 decks
-2%synergy
Scroll of Isildur
25%inclusion2 decks8 decks
24%synergy
Hold for Questioning
13%inclusion1 decks8 decks
12%synergy
Illusory Gains
13%inclusion1 decks8 decks
12%synergy
Verity Circle
13%inclusion1 decks8 decks
11%synergy
Nerd Rage
13%inclusion1 decks8 decks
9%synergy
Chronic Flooding
13%inclusion1 decks8 decks
12%synergy
Air Bladder
13%inclusion1 decks8 decks
12%synergy
Chant of the Skifsang
13%inclusion1 decks8 decks
12%synergy
Case of the Filched Falcon
13%inclusion1 decks8 decks
12%synergy
Extravagant Replication
13%inclusion1 decks8 decks
10%synergy
Contempt
13%inclusion1 decks8 decks
12%synergy
Psychic Impetus
13%inclusion1 decks8 decks
12%synergy
Betrayal
13%inclusion1 decks8 decks
12%synergy
Curious Inquiry
13%inclusion1 decks8 decks
12%synergy
Agoraphobia
13%inclusion1 decks8 decks
12%synergy
Dictate of Kruphix
13%inclusion1 decks8 decks
9%synergy
Curse of Verbosity
13%inclusion1 decks8 decks
11%synergy
Octopus Umbra
13%inclusion1 decks8 decks
12%synergy
Trail of Evidence
13%inclusion1 decks8 decks
12%synergy
Followed Footsteps
13%inclusion1 decks8 decks
12%synergy
Alexi's Cloak
13%inclusion1 decks8 decks
12%synergy
Ballad of the Black Flag
13%inclusion1 decks8 decks
12%synergy
Marit Lage's Slumber
13%inclusion1 decks8 decks
12%synergy
Leyline of Singularity
13%inclusion1 decks8 decks
12%synergy
Storm of Saruman
13%inclusion1 decks8 decks
11%synergy
Backfire
13%inclusion1 decks8 decks
12%synergy
Propaganda
13%inclusion1 decks8 decks
-18%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
Jace Beleren
25%inclusion2 decks8 decks
22%synergy
Teferi, Master of Time
25%inclusion2 decks8 decks
20%synergy
Jace, the Mind Sculptor
25%inclusion2 decks8 decks
22%synergy
Vronos, Masked Inquisitor
25%inclusion2 decks8 decks
25%synergy
Kasmina, Enigmatic Mentor
25%inclusion2 decks8 decks
23%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
Halimar Depths
25%inclusion2 decks8 decks
15%synergy
Urza's Saga
25%inclusion2 decks8 decks
8%synergy
Dark Depths
25%inclusion2 decks8 decks
24%synergy
Temple of the False God
25%inclusion2 decks8 decks
15%synergy
Dungeon Descent
25%inclusion2 decks8 decks
25%synergy
Seafarer's Quay
25%inclusion2 decks8 decks
25%synergy
Seat of the Synod
13%inclusion1 decks8 decks
-6%synergy
Tyrite Sanctum
13%inclusion1 decks8 decks
11%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
27%synergy
Throne of Eldraine
38%inclusion3 decks8 decks
28%synergy
Mox Amber
38%inclusion3 decks8 decks
30%synergy
Crystal Skull, Isu Spyglass
38%inclusion3 decks8 decks
33%synergy
Arcane Signet
25%inclusion2 decks8 decks
-40%synergy
Sky Diamond
25%inclusion2 decks8 decks
2%synergy
Lapis Orb of Dragonkind
25%inclusion2 decks8 decks
25%synergy
Misleading Signpost
25%inclusion2 decks8 decks
21%synergy
Thought Vessel
25%inclusion2 decks8 decks
-27%synergy
Altar of the Pantheon
13%inclusion1 decks8 decks
12%synergy
Decanter of Endless Water
13%inclusion1 decks8 decks
-1%synergy
Laser Screwdriver
13%inclusion1 decks8 decks
12%synergy
Five Hundred Year Diary
13%inclusion1 decks8 decks
12%synergy
Mind Stone
13%inclusion1 decks8 decks
-23%synergy
Nyx Lotus
13%inclusion1 decks8 decks
9%synergy
The Irencrag
13%inclusion1 decks8 decks
12%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
The Grey Havens
13%inclusion1 decks8 decks
12%synergy
Abstergo Entertainment
13%inclusion1 decks8 decks
12%synergy
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