Kelsien, the Plague (Commander) - Commander Matters

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #399
23decks
As CommanderAs CardAverage DeckDecksView Precon
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Any$$$$
Background image for Rebuilding Kelsien, the Plague with Avatar: The Last Airbender Eternal
Ezra Sassaman
Nov 20, 2025
Ezra Sassaman
Rebuilding Kelsien, the Plague with Avatar: The Last Airbender Eternal
Avatar: The Last Airbender is bringing back experience counters, and that means that we can revamp Kelsien, the Plague.
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Back to Top
Enter the Avatar State
25%inclusion1 decks4 decks
23%synergy
High Synergy Cards
Basilisk Collar
91%inclusion21 decks23 decks
87%synergy
Minthara, Merciless Soul
87%inclusion20 decks23 decks
85%synergy
Rune of Mortality
83%inclusion19 decks23 decks
81%synergy
Vorpal Sword
78%inclusion18 decks23 decks
76%synergy
Otharri, Suns' Glory
78%inclusion18 decks23 decks
72%synergy
Gorgon's Head
70%inclusion16 decks23 decks
68%synergy
Thornbite Staff
70%inclusion16 decks23 decks
68%synergy
Falthis, Shadowcat Familiar
65%inclusion15 decks23 decks
64%synergy
Drumbellower
65%inclusion15 decks23 decks
63%synergy
Shay Cormac
62%inclusion13 decks21 decks
59%synergy
Top Cards
Morbid Opportunist
70%inclusion16 decks23 decks
52%synergy
Mari, the Killing Quill
65%inclusion15 decks23 decks
58%synergy
Swords to Plowshares
61%inclusion14 decks23 decks
-1%synergy
Gift of Doom
57%inclusion13 decks23 decks
56%synergy
Open the Armory
57%inclusion13 decks23 decks
52%synergy
You Are Already Dead
52%inclusion12 decks23 decks
50%synergy
Swiftfoot Boots
52%inclusion12 decks23 decks
21%synergy
Quietus Spike
48%inclusion11 decks23 decks
47%synergy
Boros Charm
48%inclusion11 decks23 decks
18%synergy
General's Enforcer
48%inclusion11 decks23 decks
39%synergy
Game Changers
Smothering Tithe
26%inclusion6 decks23 decks
0%synergy
Enlightened Tutor
26%inclusion6 decks23 decks
14%synergy
Demonic Tutor
17%inclusion4 decks23 decks
-2%synergy
Orcish Bowmasters
13%inclusion3 decks23 decks
8%synergy
Vampiric Tutor
13%inclusion3 decks23 decks
-2%synergy
Teferi's Protection
8.7%inclusion2 decks23 decks
-12%synergy
Ancient Tomb
8.7%inclusion2 decks23 decks
0%synergy
Creatures
Lae'zel, Vlaakith's Champion
48%inclusion11 decks23 decks
46%synergy
Magda, the Hoardmaster
45%inclusion10 decks22 decks
43%synergy
Harvester of Souls
43%inclusion10 decks23 decks
40%synergy
Humble Defector
39%inclusion9 decks23 decks
37%synergy
Termination Facilitator
39%inclusion9 decks23 decks
37%synergy
Void Beckoner
39%inclusion9 decks23 decks
38%synergy
Puresteel Paladin
39%inclusion9 decks23 decks
35%synergy
Kalemne, Disciple of Iroas
39%inclusion9 decks23 decks
38%synergy
Maha, Its Feathers Night
38%inclusion8 decks21 decks
37%synergy
Slaughter Specialist
35%inclusion8 decks23 decks
34%synergy
Sun Titan
35%inclusion8 decks23 decks
24%synergy
Mathas, Fiend Seeker
30%inclusion7 decks23 decks
28%synergy
Mother of Runes
30%inclusion7 decks23 decks
23%synergy
Daxos the Returned
30%inclusion7 decks23 decks
30%synergy
Archetype of Finality
30%inclusion7 decks23 decks
29%synergy
Ertha Jo, Frontier Mentor
27%inclusion6 decks22 decks
27%synergy
Taii Wakeen, Perfect Shot
27%inclusion6 decks22 decks
26%synergy
White Plume Adventurer
26%inclusion6 decks23 decks
25%synergy
Goblin Sharpshooter
26%inclusion6 decks23 decks
25%synergy
Stoneforge Mystic
22%inclusion5 decks23 decks
19%synergy
Esper Sentinel
22%inclusion5 decks23 decks
3%synergy
Zagras, Thief of Heartbeats
22%inclusion5 decks23 decks
21%synergy
Akiri, Fearless Voyager
22%inclusion5 decks23 decks
19%synergy
Massacre Girl, Known Killer
22%inclusion5 decks23 decks
19%synergy
Solemn Simulacrum
17%inclusion4 decks23 decks
4%synergy
Blood Cultist
17%inclusion4 decks23 decks
17%synergy
Deathbringer Thoctar
17%inclusion4 decks23 decks
17%synergy
Assault Intercessor
17%inclusion4 decks23 decks
17%synergy
Giver of Runes
17%inclusion4 decks23 decks
15%synergy
Athreos, Shroud-Veiled
17%inclusion4 decks23 decks
16%synergy
Stonehewer Giant
17%inclusion4 decks23 decks
16%synergy
Queen Marchesa
17%inclusion4 decks23 decks
11%synergy
Witch Enchanter
14%inclusion3 decks21 decks
8%synergy
Bureau Headmaster
14%inclusion3 decks21 decks
14%synergy
Ankle Shanker
13%inclusion3 decks23 decks
10%synergy
Knight of the White Orchid
13%inclusion3 decks23 decks
9%synergy
Onyx Mage
13%inclusion3 decks23 decks
13%synergy
Cunning Sparkmage
13%inclusion3 decks23 decks
13%synergy
Tor Wauki the Younger
13%inclusion3 decks23 decks
13%synergy
Armored Skyhunter
13%inclusion3 decks23 decks
11%synergy
Claim Jumper
9.1%inclusion2 decks22 decks
8%synergy
Flash Thompson, Spider-Fan
9.1%inclusion1 decks11 decks
9%synergy
Bounty Agent
8.7%inclusion2 decks23 decks
8%synergy
Archivist of Oghma
8.7%inclusion2 decks23 decks
6%synergy
Weathered Wayfarer
8.7%inclusion2 decks23 decks
7%synergy
Shadowheart, Dark Justiciar
8.7%inclusion2 decks23 decks
8%synergy
Astor, Bearer of Blades
8.7%inclusion2 decks23 decks
8%synergy
Mahadi, Emporium Master
8.7%inclusion2 decks23 decks
0%synergy
Devout Chaplain
8.7%inclusion2 decks23 decks
8%synergy
Blood Artist
8.7%inclusion2 decks23 decks
-9%synergy
Instants
Despark
43%inclusion10 decks23 decks
29%synergy
Crackling Doom
39%inclusion9 decks23 decks
22%synergy
Mirrodin Avenged
35%inclusion8 decks23 decks
34%synergy
Generous Gift
35%inclusion8 decks23 decks
15%synergy
Stroke of Midnight
30%inclusion7 decks23 decks
19%synergy
Loran's Escape
26%inclusion6 decks23 decks
25%synergy
Anguished Unmaking
26%inclusion6 decks23 decks
-8%synergy
Fracture
26%inclusion6 decks23 decks
20%synergy
Mortify
26%inclusion6 decks23 decks
11%synergy
Dire Tactics
22%inclusion5 decks23 decks
19%synergy
Terminate
22%inclusion5 decks23 decks
9%synergy
Path to Exile
22%inclusion5 decks23 decks
-25%synergy
Deflecting Palm
22%inclusion5 decks23 decks
15%synergy
Deadly Rollick
17%inclusion4 decks23 decks
7%synergy
Flawless Maneuver
17%inclusion4 decks23 decks
3%synergy
Rakdos Charm
17%inclusion4 decks23 decks
8%synergy
Deflecting Swat
17%inclusion4 decks23 decks
2%synergy
Bladebrand
17%inclusion4 decks23 decks
17%synergy
Offer Immortality
17%inclusion4 decks23 decks
16%synergy
Utter End
17%inclusion4 decks23 decks
12%synergy
Touch of Moonglove
17%inclusion4 decks23 decks
17%synergy
Chaos Warp
13%inclusion3 decks23 decks
-3%synergy
Thrill of Possibility
13%inclusion3 decks23 decks
5%synergy
Malakir Rebirth
13%inclusion3 decks23 decks
8%synergy
Heliod's Intervention
13%inclusion3 decks23 decks
11%synergy
Alesha's Legacy
13%inclusion2 decks16 decks
11%synergy
Inevitable Defeat
12%inclusion2 decks17 decks
6%synergy
Flare of Fortitude
10%inclusion2 decks21 decks
6%synergy
Legion Leadership
10%inclusion2 decks21 decks
5%synergy
Return to Dust
8.7%inclusion2 decks23 decks
6%synergy
Imp's Mischief
8.7%inclusion2 decks23 decks
7%synergy
Clever Concealment
8.7%inclusion2 decks23 decks
5%synergy
Deadly Dispute
8.7%inclusion2 decks23 decks
-14%synergy
Battle-Rage Blessing
8.7%inclusion2 decks23 decks
8%synergy
Blacksmith's Skill
8.7%inclusion2 decks23 decks
7%synergy
Armor of Shadows
8.7%inclusion2 decks23 decks
9%synergy
Virulent Swipe
8.7%inclusion2 decks23 decks
9%synergy
Bedevil
8.7%inclusion2 decks23 decks
2%synergy
Bolt Bend
8.7%inclusion2 decks23 decks
7%synergy
Sejiri Shelter
8.7%inclusion2 decks23 decks
6%synergy
Sudden Spoiling
8.7%inclusion2 decks23 decks
8%synergy
Akroma's Will
8.7%inclusion2 decks23 decks
-5%synergy
Maximum Overdrive
5.9%inclusion1 decks17 decks
6%synergy
Divine Resilience
5.6%inclusion1 decks18 decks
5%synergy
Untimely Malfunction
5.0%inclusion1 decks20 decks
0%synergy
Sorceries
Painful Truths
43%inclusion10 decks23 decks
35%synergy
Ruinous Ultimatum
43%inclusion10 decks23 decks
4%synergy
Steelshaper's Gift
43%inclusion10 decks23 decks
40%synergy
Sevinne's Reclamation
35%inclusion8 decks23 decks
27%synergy
Read the Bones
35%inclusion8 decks23 decks
25%synergy
Night's Whisper
35%inclusion8 decks23 decks
22%synergy
Vandalblast
30%inclusion7 decks23 decks
20%synergy
Mythos of Snapdax
30%inclusion7 decks23 decks
24%synergy
Sign in Blood
30%inclusion7 decks23 decks
22%synergy
Vindicate
22%inclusion5 decks23 decks
15%synergy
Chandra's Ignition
22%inclusion5 decks23 decks
20%synergy
Wrath of God
13%inclusion3 decks23 decks
8%synergy
Faithless Looting
13%inclusion3 decks23 decks
-2%synergy
Farewell
13%inclusion3 decks23 decks
2%synergy
Call of the Death-Dweller
13%inclusion3 decks23 decks
13%synergy
Toxic Deluge
13%inclusion3 decks23 decks
5%synergy
Damn
13%inclusion3 decks23 decks
-5%synergy
Split Up
10%inclusion2 decks20 decks
9%synergy
Divine Reckoning
8.7%inclusion2 decks23 decks
8%synergy
Blasphemous Act
8.7%inclusion2 decks23 decks
-14%synergy
Unfinished Business
8.7%inclusion2 decks23 decks
8%synergy
Single Combat
8.7%inclusion2 decks23 decks
7%synergy
Ambition's Cost
8.7%inclusion2 decks23 decks
7%synergy
Drown in Ichor
8.7%inclusion2 decks23 decks
8%synergy
Hymn of the Faller
7.1%inclusion1 decks14 decks
7%synergy
Vengeful Possession
5.0%inclusion1 decks20 decks
5%synergy
Utility Artifacts
Sting, the Glinting Dagger
48%inclusion11 decks23 decks
46%synergy
Shadowspear
35%inclusion8 decks23 decks
30%synergy
Thousand-Year Elixir
30%inclusion7 decks23 decks
29%synergy
Gorgon Flail
26%inclusion6 decks23 decks
25%synergy
Magewright's Stone
26%inclusion6 decks23 decks
25%synergy
Hunter's Blowgun
26%inclusion6 decks23 decks
25%synergy
Whispersilk Cloak
22%inclusion5 decks23 decks
16%synergy
Brotherhood Regalia
19%inclusion4 decks21 decks
16%synergy
Illusionist's Bracers
17%inclusion4 decks23 decks
16%synergy
Battlemage's Bracers
17%inclusion4 decks23 decks
17%synergy
Lightning Greaves
17%inclusion4 decks23 decks
-17%synergy
Hammer of Nazahn
17%inclusion4 decks23 decks
15%synergy
The Reaver Cleaver
13%inclusion3 decks23 decks
7%synergy
Skullclamp
13%inclusion3 decks23 decks
-16%synergy
Champion's Helm
13%inclusion3 decks23 decks
12%synergy
Sword of the Animist
13%inclusion3 decks23 decks
3%synergy
Dragonfire Blade
13%inclusion2 decks16 decks
11%synergy
Haystack
9.1%inclusion2 decks22 decks
8%synergy
Bagel and Schmear
9.1%inclusion1 decks11 decks
9%synergy
Glaring Spotlight
8.7%inclusion2 decks23 decks
8%synergy
Wayfarer's Bauble
8.7%inclusion2 decks23 decks
0%synergy
Mithril Coat
8.7%inclusion2 decks23 decks
3%synergy
Robe of Stars
8.7%inclusion2 decks23 decks
8%synergy
Helm of the Host
8.7%inclusion2 decks23 decks
3%synergy
Mask of Griselbrand
8.7%inclusion2 decks23 decks
7%synergy
Darksteel Plate
8.7%inclusion2 decks23 decks
7%synergy
Puppet Strings
8.7%inclusion2 decks23 decks
8%synergy
Hexplate Wallbreaker
8.7%inclusion2 decks23 decks
8%synergy
Leyline Axe
5.6%inclusion1 decks18 decks
4%synergy
Enchantments
Fighter Class
43%inclusion10 decks23 decks
40%synergy
Sigarda's Aid
30%inclusion7 decks23 decks
27%synergy
Phyrexian Arena
26%inclusion6 decks23 decks
7%synergy
Aspect of Gorgon
22%inclusion5 decks23 decks
21%synergy
Forge Anew
17%inclusion4 decks23 decks
15%synergy
Death Pits of Rath
17%inclusion4 decks23 decks
17%synergy
Kaya's Ghostform
17%inclusion4 decks23 decks
15%synergy
Revel in Riches
17%inclusion4 decks23 decks
11%synergy
Nowhere to Run
14%inclusion3 decks21 decks
14%synergy
Blind Obedience
13%inclusion3 decks23 decks
7%synergy
Grave Betrayal
13%inclusion3 decks23 decks
13%synergy
Agent of the Shadow Thieves
13%inclusion3 decks23 decks
12%synergy
Black Market Connections
13%inclusion3 decks23 decks
-3%synergy
All-Out Assault
13%inclusion2 decks16 decks
0%synergy
Dazzling Theater // Prop Room
10%inclusion2 decks20 decks
8%synergy
Glasswing Grace
10%inclusion2 decks21 decks
8%synergy
At Knifepoint
9.1%inclusion2 decks22 decks
7%synergy
Black Market
8.7%inclusion2 decks23 decks
3%synergy
Gift of Immortality
8.7%inclusion2 decks23 decks
8%synergy
Reconnaissance
8.7%inclusion2 decks23 decks
-2%synergy
Forging the Tyrite Sword
8.7%inclusion2 decks23 decks
8%synergy
Retreat to Hagra
8.7%inclusion2 decks23 decks
8%synergy
Chorale of the Void
6.7%inclusion1 decks15 decks
6%synergy
Sporogenic Infection
5.0%inclusion1 decks20 decks
5%synergy
Sheltered by Ghosts
5.0%inclusion1 decks20 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
13%inclusion3 decks23 decks
13%synergy
Nahiri, the Lithomancer
13%inclusion3 decks23 decks
13%synergy
Kaya, Geist Hunter
13%inclusion3 decks23 decks
9%synergy
Utility Lands
Bojuka Bog
52%inclusion12 decks23 decks
21%synergy
Vault of the Archangel
52%inclusion12 decks23 decks
30%synergy
Rogue's Passage
48%inclusion11 decks23 decks
24%synergy
Axgard Armory
39%inclusion9 decks23 decks
37%synergy
Arcane Lighthouse
35%inclusion8 decks23 decks
34%synergy
Buried Ruin
35%inclusion8 decks23 decks
31%synergy
Shizo, Death's Storehouse
22%inclusion5 decks23 decks
14%synergy
Detection Tower
17%inclusion4 decks23 decks
17%synergy
Karn's Bastion
17%inclusion4 decks23 decks
17%synergy
Reliquary Tower
13%inclusion3 decks23 decks
-3%synergy
Urborg, Tomb of Yawgmoth
13%inclusion3 decks23 decks
-1%synergy
Phyrexian Tower
8.7%inclusion2 decks23 decks
-1%synergy
Urza's Saga
8.7%inclusion2 decks23 decks
4%synergy
Sunhome, Fortress of the Legion
8.7%inclusion2 decks23 decks
5%synergy
Castle Locthwain
8.7%inclusion2 decks23 decks
6%synergy
Mana Artifacts
Arcane Signet
96%inclusion22 decks23 decks
10%synergy
Sol Ring
83%inclusion19 decks23 decks
-6%synergy
Patriar's Seal
65%inclusion15 decks23 decks
63%synergy
Orzhov Signet
52%inclusion12 decks23 decks
19%synergy
Boros Signet
43%inclusion10 decks23 decks
14%synergy
Rakdos Signet
39%inclusion9 decks23 decks
8%synergy
Talisman of Hierarchy
39%inclusion9 decks23 decks
-2%synergy
Commander's Sphere
35%inclusion8 decks23 decks
20%synergy
Talisman of Indulgence
35%inclusion8 decks23 decks
-2%synergy
Talisman of Conviction
30%inclusion7 decks23 decks
-10%synergy
Fellwar Stone
22%inclusion5 decks23 decks
-6%synergy
Bandit's Haul
14%inclusion3 decks22 decks
12%synergy
Savai Crystal
13%inclusion3 decks23 decks
11%synergy
Aetheric Amplifier
12%inclusion2 decks17 decks
11%synergy
Bounty Board
9.1%inclusion2 decks22 decks
7%synergy
Mind Stone
8.7%inclusion2 decks23 decks
0%synergy
Lands
Command Tower
96%inclusion22 decks23 decks
3%synergy
Swamp
91%inclusion21 decks23 decks
-4%synergy
Mountain
91%inclusion21 decks23 decks
-3%synergy
Plains
87%inclusion20 decks23 decks
-8%synergy
Nomad Outpost
83%inclusion19 decks23 decks
24%synergy
Exotic Orchard
65%inclusion15 decks23 decks
14%synergy
Caves of Koilos
65%inclusion15 decks23 decks
26%synergy
Battlefield Forge
57%inclusion13 decks23 decks
17%synergy
Isolated Chapel
57%inclusion13 decks23 decks
5%synergy
Sacred Foundry
52%inclusion12 decks23 decks
8%synergy
Dragonskull Summit
52%inclusion12 decks23 decks
1%synergy
Godless Shrine
52%inclusion12 decks23 decks
5%synergy
Clifftop Retreat
52%inclusion12 decks23 decks
3%synergy
Smoldering Marsh
48%inclusion11 decks23 decks
12%synergy
Forbidden Orchard
48%inclusion11 decks23 decks
45%synergy
Savai Triome
43%inclusion10 decks23 decks
5%synergy
Spectator Seating
43%inclusion10 decks23 decks
11%synergy
Sulfurous Springs
43%inclusion10 decks23 decks
17%synergy
Vault of Champions
35%inclusion8 decks23 decks
1%synergy
Blood Crypt
30%inclusion7 decks23 decks
-13%synergy
Luxury Suite
30%inclusion7 decks23 decks
-2%synergy
Evolving Wilds
30%inclusion7 decks23 decks
4%synergy
Path of Ancestry
30%inclusion7 decks23 decks
-7%synergy
Arid Mesa
30%inclusion7 decks23 decks
-1%synergy
Marsh Flats
30%inclusion7 decks23 decks
-1%synergy
Shattered Landscape
29%inclusion6 decks21 decks
9%synergy
Bloodstained Mire
26%inclusion6 decks23 decks
-6%synergy
Brightclimb Pathway
22%inclusion5 decks23 decks
12%synergy
Fetid Heath
22%inclusion5 decks23 decks
2%synergy
Sundown Pass
22%inclusion5 decks23 decks
1%synergy
Needleverge Pathway
22%inclusion5 decks23 decks
13%synergy
Shadowblood Ridge
17%inclusion4 decks23 decks
2%synergy
Terramorphic Expanse
17%inclusion4 decks23 decks
-2%synergy
Myriad Landscape
17%inclusion4 decks23 decks
5%synergy
Tainted Field
17%inclusion4 decks23 decks
5%synergy
Graven Cairns
17%inclusion4 decks23 decks
6%synergy
Rugged Prairie
17%inclusion4 decks23 decks
1%synergy
Orzhov Basilica
17%inclusion4 decks23 decks
3%synergy
Haunted Ridge
17%inclusion4 decks23 decks
-3%synergy
Temple of Silence
17%inclusion4 decks23 decks
-6%synergy
Silent Clearing
17%inclusion4 decks23 decks
14%synergy
Witch Enchanter
14%inclusion3 decks21 decks
8%synergy
Desolate Mire
14%inclusion3 decks22 decks
2%synergy
Rakdos Carnarium
13%inclusion3 decks23 decks
0%synergy
Inspiring Vantage
13%inclusion3 decks23 decks
9%synergy
Temple of Triumph
13%inclusion3 decks23 decks
-9%synergy
Temple of Malice
13%inclusion3 decks23 decks
-4%synergy
Malakir Rebirth
13%inclusion3 decks23 decks
8%synergy
Tainted Peak
13%inclusion3 decks23 decks
3%synergy
Shattered Sanctum
13%inclusion3 decks23 decks
-10%synergy
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