Kelsien, the Plague (Commander) - Assassins

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #456
21decks
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Ciel Collins
Jun 19, 2026
Ciel Collins
Which Commander Themes Still Don't Have a Precon?
There will be close to 200 precons by the time the year's done, but there's still so much ground to cover, as Ciel identifies the themes in need.
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The Black Arrow
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
Basilisk Collar
81%inclusion17 decks21 decks
77%synergy
Mari, the Killing Quill
76%inclusion16 decks21 decks
70%synergy
Vorpal Sword
67%inclusion14 decks21 decks
65%synergy
Rune of Mortality
57%inclusion12 decks21 decks
56%synergy
Shay Cormac
57%inclusion12 decks21 decks
54%synergy
Royal Assassin
57%inclusion12 decks21 decks
54%synergy
Otharri, Suns' Glory
57%inclusion12 decks21 decks
52%synergy
Falthis, Shadowcat Familiar
52%inclusion11 decks21 decks
51%synergy
Minthara, Merciless Soul
52%inclusion11 decks21 decks
51%synergy
Gift of Doom
48%inclusion10 decks21 decks
47%synergy
Top Cards
Termination Facilitator
48%inclusion10 decks21 decks
46%synergy
Quietus Spike
48%inclusion10 decks21 decks
46%synergy
Maha, Its Feathers Night
48%inclusion10 decks21 decks
46%synergy
Ruinous Ultimatum
43%inclusion9 decks21 decks
4%synergy
Thornbite Staff
43%inclusion9 decks21 decks
41%synergy
Mirrodin Avenged
43%inclusion9 decks21 decks
42%synergy
Vandalblast
38%inclusion8 decks21 decks
28%synergy
Open the Armory
38%inclusion8 decks21 decks
34%synergy
Mathas, Fiend Seeker
38%inclusion8 decks21 decks
36%synergy
Gorgon's Head
38%inclusion8 decks21 decks
37%synergy
Game Changers
Teferi's Protection
24%inclusion5 decks21 decks
5%synergy
Demonic Tutor
24%inclusion5 decks21 decks
5%synergy
Enlightened Tutor
19%inclusion4 decks21 decks
7%synergy
Smothering Tithe
14%inclusion3 decks21 decks
-10%synergy
Farewell
14%inclusion3 decks21 decks
4%synergy
Orcish Bowmasters
10%inclusion2 decks21 decks
4%synergy
Creatures
Daxos the Returned
38%inclusion8 decks21 decks
37%synergy
Queen Marchesa
38%inclusion8 decks21 decks
33%synergy
Morbid Opportunist
33%inclusion7 decks21 decks
15%synergy
General's Enforcer
33%inclusion7 decks21 decks
26%synergy
Lae'zel, Vlaakith's Champion
33%inclusion7 decks21 decks
32%synergy
Drumbellower
29%inclusion6 decks21 decks
27%synergy
Aya of Alexandria
29%inclusion6 decks21 decks
27%synergy
Archetype of Finality
29%inclusion6 decks21 decks
28%synergy
Kassandra, Eagle Bearer
24%inclusion5 decks21 decks
23%synergy
Puresteel Paladin
24%inclusion5 decks21 decks
20%synergy
Zagras, Thief of Heartbeats
24%inclusion5 decks21 decks
23%synergy
Arno Dorian
24%inclusion5 decks21 decks
22%synergy
Bureau Headmaster
24%inclusion5 decks21 decks
23%synergy
Goblin Sharpshooter
24%inclusion5 decks21 decks
23%synergy
Layla Hassan
24%inclusion5 decks21 decks
23%synergy
Grave Researcher
20%inclusion1 decks5 decks
16%synergy
Blood Cultist
19%inclusion4 decks21 decks
19%synergy
Taii Wakeen, Perfect Shot
19%inclusion4 decks21 decks
18%synergy
Eivor, Battle-Ready
19%inclusion4 decks21 decks
19%synergy
Bounty Hunter
19%inclusion4 decks21 decks
18%synergy
Altaïr Ibn-La'Ahad
19%inclusion4 decks21 decks
19%synergy
Harvester of Souls
19%inclusion4 decks21 decks
16%synergy
Mother of Runes
19%inclusion4 decks21 decks
12%synergy
Poison-Blade Mentor
19%inclusion4 decks21 decks
19%synergy
Massacre Girl
19%inclusion4 decks21 decks
17%synergy
Desmond Miles
19%inclusion4 decks21 decks
18%synergy
Magda, the Hoardmaster
19%inclusion4 decks21 decks
17%synergy
Arbaaz Mir
19%inclusion4 decks21 decks
17%synergy
Bayek of Siwa
19%inclusion4 decks21 decks
17%synergy
Sun Titan
19%inclusion4 decks21 decks
8%synergy
June, Bounty Hunter
15%inclusion2 decks13 decks
15%synergy
Bounty Agent
14%inclusion3 decks21 decks
14%synergy
Humble Defector
14%inclusion3 decks21 decks
12%synergy
Ankle Shanker
14%inclusion3 decks21 decks
11%synergy
Assassin Initiate
14%inclusion3 decks21 decks
14%synergy
Olivia, Opulent Outlaw
14%inclusion3 decks21 decks
11%synergy
White Plume Adventurer
14%inclusion3 decks21 decks
13%synergy
Esper Sentinel
14%inclusion3 decks21 decks
-4%synergy
Vraska's Finisher
14%inclusion3 decks21 decks
14%synergy
Unstoppable Slasher
14%inclusion3 decks21 decks
13%synergy
Alexios, Deimos of Kosmos
14%inclusion3 decks21 decks
12%synergy
Dark Impostor
14%inclusion3 decks21 decks
13%synergy
Cunning Sparkmage
14%inclusion3 decks21 decks
14%synergy
Big Game Hunter
14%inclusion3 decks21 decks
13%synergy
The Lord of Pain
14%inclusion3 decks21 decks
13%synergy
Ojer Axonil, Deepest Might
14%inclusion3 decks21 decks
14%synergy
Nekrataal
14%inclusion3 decks21 decks
13%synergy
Hexing Squelcher
11%inclusion1 decks9 decks
6%synergy
Vihaan, Goldwaker
10%inclusion2 decks21 decks
6%synergy
Ertha Jo, Frontier Mentor
10%inclusion2 decks21 decks
9%synergy
Instants
Path to Exile
38%inclusion8 decks21 decks
-9%synergy
Crackling Doom
38%inclusion8 decks21 decks
21%synergy
You Are Already Dead
33%inclusion7 decks21 decks
32%synergy
Swords to Plowshares
29%inclusion6 decks21 decks
-33%synergy
Generous Gift
29%inclusion6 decks21 decks
11%synergy
Boros Charm
24%inclusion5 decks21 decks
-5%synergy
Terminate
24%inclusion5 decks21 decks
12%synergy
Murder
24%inclusion5 decks21 decks
22%synergy
Fracture
24%inclusion5 decks21 decks
18%synergy
Anguished Unmaking
19%inclusion4 decks21 decks
-14%synergy
Mortify
19%inclusion4 decks21 decks
4%synergy
Dire Tactics
14%inclusion3 decks21 decks
12%synergy
Shoot the Sheriff
14%inclusion3 decks21 decks
13%synergy
Chain Assassination
14%inclusion3 decks21 decks
14%synergy
Dawn's Truce
14%inclusion3 decks21 decks
7%synergy
Flawless Maneuver
14%inclusion3 decks21 decks
-0%synergy
Stroke of Midnight
14%inclusion3 decks21 decks
3%synergy
Malakir Rebirth
14%inclusion3 decks21 decks
9%synergy
Deflecting Swat
14%inclusion3 decks21 decks
-2%synergy
Deflecting Palm
14%inclusion3 decks21 decks
7%synergy
Valakut Awakening
14%inclusion3 decks21 decks
11%synergy
Giantfall
11%inclusion1 decks9 decks
11%synergy
Fatal Blow
10%inclusion2 decks21 decks
9%synergy
Whisper of the Dross
10%inclusion2 decks21 decks
9%synergy
Go for the Throat
10%inclusion2 decks21 decks
7%synergy
Grim Affliction
10%inclusion2 decks21 decks
9%synergy
Lightning Bolt
10%inclusion2 decks21 decks
6%synergy
Dark Ritual
10%inclusion2 decks21 decks
-8%synergy
Legion Leadership
10%inclusion2 decks21 decks
5%synergy
Bladebrand
10%inclusion2 decks21 decks
9%synergy
Offer Immortality
10%inclusion2 decks21 decks
9%synergy
Bolt Bend
10%inclusion2 decks21 decks
8%synergy
Battlefield Improvisation
10%inclusion2 decks21 decks
9%synergy
Cast Down
10%inclusion2 decks21 decks
9%synergy
Sudden Spoiling
10%inclusion2 decks21 decks
9%synergy
Misthios's Fury
10%inclusion2 decks21 decks
9%synergy
Sudden Strike
7.1%inclusion1 decks14 decks
7%synergy
Alesha's Legacy
6.3%inclusion1 decks16 decks
5%synergy
Sorceries
Blasphemous Act
19%inclusion4 decks21 decks
-4%synergy
Restart Sequence
19%inclusion4 decks21 decks
18%synergy
Steelshaper's Gift
19%inclusion4 decks21 decks
16%synergy
Painful Truths
14%inclusion3 decks21 decks
7%synergy
Vindicate
14%inclusion3 decks21 decks
9%synergy
Sign in Blood
14%inclusion3 decks21 decks
7%synergy
Overpowering Attack
14%inclusion3 decks21 decks
12%synergy
Secret Rendezvous
10%inclusion2 decks21 decks
8%synergy
Mythos of Snapdax
10%inclusion2 decks21 decks
4%synergy
Petty Larceny
10%inclusion2 decks21 decks
9%synergy
Unfinished Business
10%inclusion2 decks21 decks
9%synergy
Reconstruct History
10%inclusion2 decks21 decks
9%synergy
Reanimate
10%inclusion2 decks21 decks
-8%synergy
Cleansing Nova
10%inclusion2 decks21 decks
8%synergy
Toxic Deluge
10%inclusion2 decks21 decks
1%synergy
Damn
10%inclusion2 decks21 decks
-8%synergy
What Must Be Done
10%inclusion2 decks21 decks
9%synergy
Utility Artifacts
Sting, the Glinting Dagger
38%inclusion8 decks21 decks
36%synergy
Swiftfoot Boots
38%inclusion8 decks21 decks
7%synergy
Brotherhood Regalia
38%inclusion8 decks21 decks
35%synergy
Magewright's Stone
33%inclusion7 decks21 decks
32%synergy
Lightning Greaves
33%inclusion7 decks21 decks
-1%synergy
Thousand-Year Elixir
29%inclusion6 decks21 decks
28%synergy
Shadowspear
29%inclusion6 decks21 decks
24%synergy
Hidden Blade
24%inclusion5 decks21 decks
23%synergy
Gorgon Flail
24%inclusion5 decks21 decks
23%synergy
The Spear of Leonidas
24%inclusion5 decks21 decks
23%synergy
Whispersilk Cloak
19%inclusion4 decks21 decks
14%synergy
Raven Clan War-Axe
19%inclusion4 decks21 decks
19%synergy
Haystack
19%inclusion4 decks21 decks
18%synergy
Sword of the Animist
19%inclusion4 decks21 decks
10%synergy
Illusionist's Bracers
14%inclusion3 decks21 decks
13%synergy
Mithril Coat
14%inclusion3 decks21 decks
9%synergy
Mask of Griselbrand
14%inclusion3 decks21 decks
13%synergy
Nazgûl Battle-Mace
10%inclusion2 decks21 decks
9%synergy
Glaring Spotlight
10%inclusion2 decks21 decks
9%synergy
The Reaver Cleaver
10%inclusion2 decks21 decks
4%synergy
Robe of Stars
10%inclusion2 decks21 decks
9%synergy
Umbral Mantle
10%inclusion2 decks21 decks
9%synergy
Sword of Truth and Justice
10%inclusion2 decks21 decks
9%synergy
Caduceus, Staff of Hermes
10%inclusion2 decks21 decks
8%synergy
The Animus
10%inclusion2 decks21 decks
8%synergy
Door of Destinies
10%inclusion2 decks21 decks
7%synergy
Scythe of the Wretched
10%inclusion2 decks21 decks
9%synergy
Battlemage's Bracers
10%inclusion2 decks21 decks
9%synergy
Sword of Sinew and Steel
10%inclusion2 decks21 decks
9%synergy
Sword of Feast and Famine
10%inclusion2 decks21 decks
6%synergy
Sunforger
10%inclusion2 decks21 decks
7%synergy
The Fire Nation Drill
7.7%inclusion1 decks13 decks
7%synergy
Dragonfire Blade
6.3%inclusion1 decks16 decks
5%synergy
Dancer's Chakrams
6.3%inclusion1 decks16 decks
6%synergy
Enchantments
Death Pits of Rath
33%inclusion7 decks21 decks
33%synergy
All-Out Assault
25%inclusion4 decks16 decks
14%synergy
Reconnaissance
24%inclusion5 decks21 decks
12%synergy
Sigarda's Aid
24%inclusion5 decks21 decks
21%synergy
Fighter Class
24%inclusion5 decks21 decks
21%synergy
The Revelations of Ezio
24%inclusion5 decks21 decks
24%synergy
Revel in Riches
24%inclusion5 decks21 decks
18%synergy
Forge Anew
19%inclusion4 decks21 decks
17%synergy
Phyrexian Arena
19%inclusion4 decks21 decks
1%synergy
Gift of Immortality
14%inclusion3 decks21 decks
13%synergy
Phyresis
14%inclusion3 decks21 decks
14%synergy
Eternal Thirst
14%inclusion3 decks21 decks
14%synergy
Black Market Connections
14%inclusion3 decks21 decks
-2%synergy
Land Tax
14%inclusion3 decks21 decks
8%synergy
Cover of Darkness
14%inclusion3 decks21 decks
11%synergy
Ghostly Prison
14%inclusion3 decks21 decks
7%synergy
Greed
10%inclusion2 decks21 decks
9%synergy
Black Market
10%inclusion2 decks21 decks
4%synergy
Witch's Mist
10%inclusion2 decks21 decks
10%synergy
Reprobation
10%inclusion2 decks21 decks
9%synergy
All Will Be One
10%inclusion2 decks21 decks
9%synergy
Bleeding Effect
10%inclusion2 decks21 decks
9%synergy
Gratuitous Violence
10%inclusion2 decks21 decks
9%synergy
Grave Betrayal
10%inclusion2 decks21 decks
9%synergy
Origin of the Hidden Ones
10%inclusion2 decks21 decks
9%synergy
Agent of the Shadow Thieves
10%inclusion2 decks21 decks
9%synergy
Curse of Opulence
10%inclusion2 decks21 decks
3%synergy
At Knifepoint
10%inclusion2 decks21 decks
8%synergy
Court of Ardenvale
10%inclusion2 decks21 decks
8%synergy
Detained by Legionnaires
10%inclusion2 decks21 decks
9%synergy
Nowhere to Run
10%inclusion2 decks21 decks
9%synergy
Fall of the First Civilization
10%inclusion2 decks21 decks
9%synergy
Smile at Death
6.3%inclusion1 decks16 decks
4%synergy
Sidequest: Hunt the Mark
6.3%inclusion1 decks16 decks
6%synergy
Planeswalkers
Kaya, Geist Hunter
10%inclusion2 decks21 decks
5%synergy
Utility Lands
Rogue's Passage
57%inclusion12 decks21 decks
33%synergy
Arcane Lighthouse
48%inclusion10 decks21 decks
47%synergy
Vault of the Archangel
48%inclusion10 decks21 decks
25%synergy
Karn's Bastion
38%inclusion8 decks21 decks
37%synergy
Bojuka Bog
29%inclusion6 decks21 decks
-2%synergy
Reliquary Tower
24%inclusion5 decks21 decks
9%synergy
Detection Tower
19%inclusion4 decks21 decks
19%synergy
Axgard Armory
19%inclusion4 decks21 decks
17%synergy
Urborg, Tomb of Yawgmoth
14%inclusion3 decks21 decks
1%synergy
Buried Ruin
10%inclusion2 decks21 decks
6%synergy
Maze of Ith
10%inclusion2 decks21 decks
6%synergy
Labyrinth of Skophos
10%inclusion2 decks21 decks
9%synergy
Temple of the False God
10%inclusion2 decks21 decks
4%synergy
Ishgard, the Holy See
6.3%inclusion1 decks16 decks
5%synergy
Mana Artifacts
Sol Ring
90%inclusion19 decks21 decks
2%synergy
Arcane Signet
71%inclusion15 decks21 decks
-14%synergy
Patriar's Seal
38%inclusion8 decks21 decks
36%synergy
Bounty Board
29%inclusion6 decks21 decks
27%synergy
Orzhov Signet
24%inclusion5 decks21 decks
-6%synergy
Talisman of Indulgence
19%inclusion4 decks21 decks
-18%synergy
Rakdos Signet
19%inclusion4 decks21 decks
-9%synergy
Commander's Sphere
14%inclusion3 decks21 decks
1%synergy
Chromatic Lantern
14%inclusion3 decks21 decks
4%synergy
Fellwar Stone
14%inclusion3 decks21 decks
-14%synergy
Talisman of Hierarchy
14%inclusion3 decks21 decks
-27%synergy
Savai Crystal
14%inclusion3 decks21 decks
13%synergy
Boros Signet
10%inclusion2 decks21 decks
-17%synergy
Talisman of Conviction
10%inclusion2 decks21 decks
-33%synergy
Bandit's Haul
10%inclusion2 decks21 decks
8%synergy
Lands
Command Tower
100%inclusion21 decks21 decks
8%synergy
Swamp
100%inclusion21 decks21 decks
5%synergy
Mountain
100%inclusion21 decks21 decks
6%synergy
Plains
100%inclusion21 decks21 decks
5%synergy
Savai Triome
57%inclusion12 decks21 decks
20%synergy
Nomad Outpost
43%inclusion9 decks21 decks
-15%synergy
Path of Ancestry
43%inclusion9 decks21 decks
5%synergy
Exotic Orchard
38%inclusion8 decks21 decks
-15%synergy
Dragonskull Summit
38%inclusion8 decks21 decks
-15%synergy
Godless Shrine
33%inclusion7 decks21 decks
-15%synergy
Isolated Chapel
33%inclusion7 decks21 decks
-21%synergy
Luxury Suite
33%inclusion7 decks21 decks
2%synergy
Vault of Champions
33%inclusion7 decks21 decks
1%synergy
Brotherhood Headquarters
29%inclusion6 decks21 decks
27%synergy
Caves of Koilos
29%inclusion6 decks21 decks
-11%synergy
Blood Crypt
29%inclusion6 decks21 decks
-17%synergy
Sacred Foundry
29%inclusion6 decks21 decks
-17%synergy
Arid Mesa
29%inclusion6 decks21 decks
-3%synergy
Scrubland
29%inclusion6 decks21 decks
16%synergy
Marsh Flats
29%inclusion6 decks21 decks
-3%synergy
Badlands
24%inclusion5 decks21 decks
11%synergy
Sundown Pass
24%inclusion5 decks21 decks
2%synergy
Battlefield Forge
24%inclusion5 decks21 decks
-17%synergy
Plateau
24%inclusion5 decks21 decks
12%synergy
Spectator Seating
24%inclusion5 decks21 decks
-7%synergy
Clifftop Retreat
24%inclusion5 decks21 decks
-28%synergy
Bloodstained Mire
24%inclusion5 decks21 decks
-9%synergy
Raucous Theater
19%inclusion4 decks21 decks
9%synergy
Smoldering Marsh
19%inclusion4 decks21 decks
-18%synergy
Shattered Sanctum
19%inclusion4 decks21 decks
-7%synergy
Forbidden Orchard
19%inclusion4 decks21 decks
17%synergy
Haunted Ridge
19%inclusion4 decks21 decks
-1%synergy
Shadowy Backstreet
14%inclusion3 decks21 decks
4%synergy
Myriad Landscape
14%inclusion3 decks21 decks
4%synergy
Elegant Parlor
14%inclusion3 decks21 decks
4%synergy
Malakir Rebirth
14%inclusion3 decks21 decks
9%synergy
Temple of Silence
14%inclusion3 decks21 decks
-7%synergy
Sulfurous Springs
14%inclusion3 decks21 decks
-15%synergy
Sunbaked Canyon
14%inclusion3 decks21 decks
11%synergy
Valakut Awakening
14%inclusion3 decks21 decks
11%synergy
Radiant Summit
13%inclusion2 decks15 decks
9%synergy
Sunbillow Verge
12%inclusion2 decks17 decks
3%synergy
Rakdos Carnarium
10%inclusion2 decks21 decks
-1%synergy
Shadowblood Ridge
10%inclusion2 decks21 decks
-6%synergy
Windswept Heath
10%inclusion2 decks21 decks
3%synergy
Wooded Foothills
10%inclusion2 decks21 decks
3%synergy
Reflecting Pool
10%inclusion2 decks21 decks
2%synergy
Temple of Triumph
10%inclusion2 decks21 decks
-11%synergy
Temple of Malice
10%inclusion2 decks21 decks
-6%synergy
Shattered Landscape
10%inclusion2 decks21 decks
-9%synergy
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