Kelsien, the Plague (Commander) - Midrange

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #423
23decks
As CommanderAs CardAverage DeckDecksView Precon
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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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Basilisk Collar
83%inclusion19 decks23 decks
78%synergy
Otharri, Suns' Glory
78%inclusion18 decks23 decks
73%synergy
Sting, the Glinting Dagger
70%inclusion16 decks23 decks
68%synergy
Rune of Mortality
65%inclusion15 decks23 decks
64%synergy
Minthara, Merciless Soul
65%inclusion15 decks23 decks
64%synergy
Mari, the Killing Quill
65%inclusion15 decks23 decks
59%synergy
Drumbellower
57%inclusion13 decks23 decks
55%synergy
Magda, the Hoardmaster
55%inclusion12 decks22 decks
52%synergy
Arcane Lighthouse
52%inclusion12 decks23 decks
51%synergy
Gorgon's Head
52%inclusion12 decks23 decks
51%synergy
Top Cards
Morbid Opportunist
61%inclusion14 decks23 decks
43%synergy
Ruinous Ultimatum
57%inclusion13 decks23 decks
17%synergy
White Plume Adventurer
52%inclusion12 decks23 decks
51%synergy
Shadowspear
52%inclusion12 decks23 decks
48%synergy
Vorpal Sword
48%inclusion11 decks23 decks
46%synergy
Falthis, Shadowcat Familiar
48%inclusion11 decks23 decks
47%synergy
Daxos the Returned
48%inclusion11 decks23 decks
47%synergy
General's Enforcer
48%inclusion11 decks23 decks
39%synergy
Thornbite Staff
48%inclusion11 decks23 decks
46%synergy
Dazzling Theater // Prop Room
44%inclusion8 decks18 decks
42%synergy
Game Changers
Enlightened Tutor
35%inclusion8 decks23 decks
23%synergy
Teferi's Protection
22%inclusion5 decks23 decks
2%synergy
Jeska's Will
22%inclusion5 decks23 decks
12%synergy
Demonic Tutor
22%inclusion5 decks23 decks
3%synergy
Orcish Bowmasters
22%inclusion5 decks23 decks
16%synergy
Smothering Tithe
17%inclusion4 decks23 decks
-8%synergy
The One Ring
17%inclusion4 decks23 decks
10%synergy
Farewell
13%inclusion3 decks23 decks
2%synergy
Vampiric Tutor
13%inclusion3 decks23 decks
-1%synergy
Ancient Tomb
8.7%inclusion2 decks23 decks
0%synergy
Creatures
Shay Cormac
43%inclusion9 decks21 decks
40%synergy
Taii Wakeen, Perfect Shot
41%inclusion9 decks22 decks
40%synergy
Humble Defector
39%inclusion9 decks23 decks
37%synergy
Kalemne, Disciple of Iroas
39%inclusion9 decks23 decks
38%synergy
Maha, Its Feathers Night
38%inclusion8 decks21 decks
37%synergy
Termination Facilitator
35%inclusion8 decks23 decks
33%synergy
Esper Sentinel
35%inclusion8 decks23 decks
16%synergy
Slaughter Specialist
35%inclusion8 decks23 decks
34%synergy
Lae'zel, Vlaakith's Champion
35%inclusion8 decks23 decks
33%synergy
Patrolling Peacemaker
31%inclusion4 decks13 decks
30%synergy
Goblin Sharpshooter
30%inclusion7 decks23 decks
30%synergy
Ertha Jo, Frontier Mentor
27%inclusion6 decks22 decks
27%synergy
Mathas, Fiend Seeker
26%inclusion6 decks23 decks
24%synergy
Stoneforge Mystic
26%inclusion6 decks23 decks
23%synergy
Void Beckoner
26%inclusion6 decks23 decks
25%synergy
Weathered Wayfarer
22%inclusion5 decks23 decks
20%synergy
Ankle Shanker
22%inclusion5 decks23 decks
19%synergy
Harvester of Souls
22%inclusion5 decks23 decks
19%synergy
Athreos, Shroud-Veiled
22%inclusion5 decks23 decks
20%synergy
Karlach, Fury of Avernus
17%inclusion4 decks23 decks
13%synergy
Lotho, Corrupt Shirriff
17%inclusion4 decks23 decks
4%synergy
Ragavan, Nimble Pilferer
17%inclusion4 decks23 decks
10%synergy
Giver of Runes
17%inclusion4 decks23 decks
15%synergy
Mother of Runes
17%inclusion4 decks23 decks
10%synergy
Queen Marchesa
17%inclusion4 decks23 decks
11%synergy
Grateful Apparition
17%inclusion4 decks23 decks
17%synergy
Qarsi Revenant
13%inclusion2 decks15 decks
10%synergy
Cloud, Midgar Mercenary
13%inclusion2 decks15 decks
12%synergy
Professional Face-Breaker
13%inclusion3 decks23 decks
-2%synergy
Varchild, Betrayer of Kjeldor
13%inclusion3 decks23 decks
13%synergy
Clackbridge Troll
13%inclusion3 decks23 decks
13%synergy
Loran of the Third Path
13%inclusion3 decks23 decks
6%synergy
Akiri, Fearless Voyager
13%inclusion3 decks23 decks
11%synergy
Hunted Bonebrute
13%inclusion3 decks23 decks
13%synergy
Guul Draz Assassin
13%inclusion3 decks23 decks
12%synergy
Massacre Girl, Known Killer
13%inclusion3 decks23 decks
11%synergy
Gisa, Glorious Resurrector
13%inclusion3 decks23 decks
12%synergy
Dauthi Voidwalker
13%inclusion3 decks23 decks
9%synergy
Azula, Ruthless Firebender
13%inclusion1 decks8 decks
12%synergy
Kratos, Stoic Father
11%inclusion1 decks9 decks
11%synergy
Rinoa, Angel Wing
11%inclusion1 decks9 decks
10%synergy
Metastatic Evangel
10%inclusion2 decks21 decks
9%synergy
Bureau Headmaster
10%inclusion2 decks21 decks
9%synergy
Pinnacle Monk
10%inclusion2 decks21 decks
6%synergy
Servant of the Stinger
9.1%inclusion2 decks22 decks
9%synergy
Claim Jumper
9.1%inclusion2 decks22 decks
8%synergy
Gisa, the Hellraiser
9.1%inclusion2 decks22 decks
9%synergy
Generous Plunderer
9.1%inclusion2 decks22 decks
6%synergy
Archivist of Oghma
8.7%inclusion2 decks23 decks
6%synergy
Student of Warfare
8.7%inclusion2 decks23 decks
9%synergy
Instants
Boros Charm
43%inclusion10 decks23 decks
14%synergy
Stroke of Midnight
43%inclusion10 decks23 decks
32%synergy
Anguished Unmaking
43%inclusion10 decks23 decks
10%synergy
Swords to Plowshares
39%inclusion9 decks23 decks
-23%synergy
Generous Gift
39%inclusion9 decks23 decks
21%synergy
Malakir Rebirth
30%inclusion7 decks23 decks
25%synergy
You Are Already Dead
30%inclusion7 decks23 decks
29%synergy
Deflecting Swat
30%inclusion7 decks23 decks
15%synergy
Crackling Doom
30%inclusion7 decks23 decks
13%synergy
Chaos Warp
26%inclusion6 decks23 decks
10%synergy
Mirrodin Avenged
22%inclusion5 decks23 decks
21%synergy
Fracture
22%inclusion5 decks23 decks
16%synergy
Untimely Malfunction
21%inclusion4 decks19 decks
16%synergy
Inevitable Defeat
19%inclusion3 decks16 decks
13%synergy
Final Showdown
18%inclusion4 decks22 decks
16%synergy
Wear // Tear
17%inclusion4 decks23 decks
6%synergy
Legion Leadership
14%inclusion3 decks21 decks
10%synergy
Deadly Rollick
13%inclusion3 decks23 decks
2%synergy
Everybody Lives!
13%inclusion3 decks23 decks
12%synergy
Despark
13%inclusion3 decks23 decks
-1%synergy
Offer Immortality
13%inclusion3 decks23 decks
12%synergy
Galadriel's Dismissal
13%inclusion3 decks23 decks
11%synergy
Return the Favor
9.1%inclusion2 decks22 decks
7%synergy
Loran's Escape
8.7%inclusion2 decks23 decks
7%synergy
Whisper of the Dross
8.7%inclusion2 decks23 decks
9%synergy
Flawless Maneuver
8.7%inclusion2 decks23 decks
-6%synergy
Dark Ritual
8.7%inclusion2 decks23 decks
-8%synergy
Soul Shatter
8.7%inclusion2 decks23 decks
7%synergy
Tibalt's Trickery
8.7%inclusion2 decks23 decks
5%synergy
Big Score
8.7%inclusion2 decks23 decks
-2%synergy
Bladebrand
8.7%inclusion2 decks23 decks
8%synergy
Bedevil
8.7%inclusion2 decks23 decks
2%synergy
Touch of Moonglove
8.7%inclusion2 decks23 decks
9%synergy
Sejiri Shelter
8.7%inclusion2 decks23 decks
6%synergy
Reprieve
8.7%inclusion2 decks23 decks
6%synergy
Valakut Awakening
8.7%inclusion2 decks23 decks
6%synergy
Restoration Magic
6.7%inclusion1 decks15 decks
4%synergy
Sorceries
Open the Armory
35%inclusion8 decks23 decks
31%synergy
Mythos of Snapdax
35%inclusion8 decks23 decks
29%synergy
Painful Truths
35%inclusion8 decks23 decks
26%synergy
Vandalblast
30%inclusion7 decks23 decks
20%synergy
Night's Whisper
30%inclusion7 decks23 decks
17%synergy
Call of the Death-Dweller
30%inclusion7 decks23 decks
30%synergy
Steelshaper's Gift
26%inclusion6 decks23 decks
23%synergy
Read the Bones
22%inclusion5 decks23 decks
12%synergy
Drown in Ichor
22%inclusion5 decks23 decks
21%synergy
Sevinne's Reclamation
17%inclusion4 decks23 decks
10%synergy
Faithless Looting
17%inclusion4 decks23 decks
2%synergy
Blasphemous Act
17%inclusion4 decks23 decks
-5%synergy
Single Combat
17%inclusion4 decks23 decks
16%synergy
Toxic Deluge
17%inclusion4 decks23 decks
9%synergy
Damn
17%inclusion4 decks23 decks
-1%synergy
Sign in Blood
17%inclusion4 decks23 decks
9%synergy
Wheel of Fortune
13%inclusion3 decks23 decks
9%synergy
Chandra's Ignition
13%inclusion3 decks23 decks
11%synergy
Bloodsoaked Insight
10%inclusion2 decks21 decks
8%synergy
Sundering Eruption
10%inclusion2 decks21 decks
7%synergy
Wheel of Misfortune
8.7%inclusion2 decks23 decks
7%synergy
Secret Rendezvous
8.7%inclusion2 decks23 decks
7%synergy
Damning Verdict
8.7%inclusion2 decks23 decks
8%synergy
Unearth
8.7%inclusion2 decks23 decks
6%synergy
Agadeem's Awakening
8.7%inclusion2 decks23 decks
6%synergy
Make an Example
8.7%inclusion2 decks23 decks
8%synergy
Gamble
8.7%inclusion2 decks23 decks
2%synergy
Wanderer's Strike
8.7%inclusion2 decks23 decks
9%synergy
Search for Glory
8.7%inclusion2 decks23 decks
8%synergy
Scout for Survivors
7.7%inclusion1 decks13 decks
8%synergy
Nibelheim Aflame
6.7%inclusion1 decks15 decks
6%synergy
Blasphemous Edict
5.6%inclusion1 decks18 decks
1%synergy
Utility Artifacts
Gorgon Flail
39%inclusion9 decks23 decks
38%synergy
Quietus Spike
35%inclusion8 decks23 decks
34%synergy
Illusionist's Bracers
30%inclusion7 decks23 decks
29%synergy
Magewright's Stone
30%inclusion7 decks23 decks
29%synergy
Swiftfoot Boots
30%inclusion7 decks23 decks
-1%synergy
Halo Fountain
17%inclusion4 decks23 decks
17%synergy
Thousand-Year Elixir
17%inclusion4 decks23 decks
16%synergy
Hunter's Blowgun
17%inclusion4 decks23 decks
17%synergy
Genesis Chamber
13%inclusion3 decks23 decks
13%synergy
Mithril Coat
13%inclusion3 decks23 decks
7%synergy
Lightning Greaves
13%inclusion3 decks23 decks
-21%synergy
Dowsing Dagger
13%inclusion3 decks23 decks
12%synergy
The Fire Nation Drill
13%inclusion1 decks8 decks
12%synergy
Peter Parker's Camera
10%inclusion1 decks10 decks
10%synergy
Brotherhood Regalia
10%inclusion2 decks21 decks
6%synergy
Glaring Spotlight
8.7%inclusion2 decks23 decks
8%synergy
Wayfarer's Bauble
8.7%inclusion2 decks23 decks
0%synergy
Contagion Clasp
8.7%inclusion2 decks23 decks
9%synergy
Embercleave
8.7%inclusion2 decks23 decks
5%synergy
Whispersilk Cloak
8.7%inclusion2 decks23 decks
3%synergy
Battlemage's Bracers
8.7%inclusion2 decks23 decks
8%synergy
Tome of Legends
8.7%inclusion2 decks23 decks
8%synergy
Sunforger
8.7%inclusion2 decks23 decks
6%synergy
Hammer of Nazahn
8.7%inclusion2 decks23 decks
7%synergy
Archaeomancer's Map
8.7%inclusion2 decks23 decks
7%synergy
Requiem Monolith
8.3%inclusion1 decks12 decks
8%synergy
The Seriema
7.7%inclusion1 decks13 decks
7%synergy
Long-Range Sensor
7.7%inclusion1 decks13 decks
7%synergy
Dragonfire Blade
6.7%inclusion1 decks15 decks
5%synergy
The Fire Crystal
6.7%inclusion1 decks15 decks
4%synergy
Dissection Tools
5.6%inclusion1 decks18 decks
5%synergy
Enchantments
All-Out Assault
40%inclusion6 decks15 decks
28%synergy
Gift of Doom
39%inclusion9 decks23 decks
38%synergy
Black Market Connections
30%inclusion7 decks23 decks
15%synergy
Reconnaissance
26%inclusion6 decks23 decks
15%synergy
Revel in Riches
26%inclusion6 decks23 decks
19%synergy
At Knifepoint
23%inclusion5 decks22 decks
21%synergy
Aspect of Gorgon
22%inclusion5 decks23 decks
21%synergy
Fighter Class
22%inclusion5 decks23 decks
19%synergy
Agent of the Shadow Thieves
22%inclusion5 decks23 decks
21%synergy
Trouble in Pairs
22%inclusion5 decks23 decks
17%synergy
Kaya's Ghostform
17%inclusion4 decks23 decks
15%synergy
Land Tax
17%inclusion4 decks23 decks
11%synergy
Phyrexian Arena
17%inclusion4 decks23 decks
-1%synergy
Forge Anew
13%inclusion3 decks23 decks
11%synergy
Sigarda's Aid
13%inclusion3 decks23 decks
10%synergy
Death Pits of Rath
13%inclusion3 decks23 decks
13%synergy
Court of Ardenvale
13%inclusion3 decks23 decks
11%synergy
Nowhere to Run
10%inclusion2 decks21 decks
9%synergy
Smuggler's Share
8.7%inclusion2 decks23 decks
6%synergy
Grasp of Fate
8.7%inclusion2 decks23 decks
8%synergy
Life Insurance
8.7%inclusion2 decks23 decks
6%synergy
Feast of the Victorious Dead
8.7%inclusion2 decks23 decks
8%synergy
Prosperous Partnership
8.7%inclusion2 decks23 decks
7%synergy
Curse of Opulence
8.7%inclusion2 decks23 decks
3%synergy
Sticky Fingers
8.7%inclusion2 decks23 decks
8%synergy
Spiteful Banditry
8.7%inclusion2 decks23 decks
7%synergy
Eye of Nidhogg
6.7%inclusion1 decks15 decks
6%synergy
Smile at Death
6.3%inclusion1 decks16 decks
4%synergy
Sheltered by Ghosts
5.6%inclusion1 decks18 decks
5%synergy
Grievous Wound
5.3%inclusion1 decks19 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
8.7%inclusion2 decks23 decks
8%synergy
Utility Lands
Vault of the Archangel
39%inclusion9 decks23 decks
16%synergy
Bojuka Bog
35%inclusion8 decks23 decks
4%synergy
Karn's Bastion
26%inclusion6 decks23 decks
25%synergy
Rogue's Passage
26%inclusion6 decks23 decks
3%synergy
Detection Tower
22%inclusion5 decks23 decks
21%synergy
Urborg, Tomb of Yawgmoth
22%inclusion5 decks23 decks
8%synergy
Urza's Saga
17%inclusion4 decks23 decks
13%synergy
Axgard Armory
17%inclusion4 decks23 decks
15%synergy
Buried Ruin
13%inclusion3 decks23 decks
10%synergy
Scavenger Grounds
13%inclusion3 decks23 decks
12%synergy
Eiganjo, Seat of the Empire
13%inclusion3 decks23 decks
6%synergy
Takenuma, Abandoned Mire
13%inclusion3 decks23 decks
5%synergy
Shizo, Death's Storehouse
8.7%inclusion2 decks23 decks
2%synergy
Maze of Ith
8.7%inclusion2 decks23 decks
5%synergy
Minas Tirith
8.7%inclusion2 decks23 decks
0%synergy
Command Beacon
8.7%inclusion2 decks23 decks
3%synergy
Field of the Dead
8.7%inclusion2 decks23 decks
8%synergy
Susur Secundi, Void Altar
7.7%inclusion1 decks13 decks
6%synergy
Mana Artifacts
Sol Ring
83%inclusion19 decks23 decks
-6%synergy
Arcane Signet
78%inclusion18 decks23 decks
-8%synergy
Patriar's Seal
52%inclusion12 decks23 decks
50%synergy
Talisman of Conviction
39%inclusion9 decks23 decks
-2%synergy
Talisman of Hierarchy
39%inclusion9 decks23 decks
-2%synergy
Talisman of Indulgence
26%inclusion6 decks23 decks
-11%synergy
Fellwar Stone
26%inclusion6 decks23 decks
-2%synergy
Commander's Sphere
22%inclusion5 decks23 decks
7%synergy
Aetheric Amplifier
19%inclusion3 decks16 decks
18%synergy
Boros Signet
17%inclusion4 decks23 decks
-11%synergy
Chromatic Lantern
17%inclusion4 decks23 decks
6%synergy
Rakdos Signet
13%inclusion3 decks23 decks
-17%synergy
Orzhov Signet
13%inclusion3 decks23 decks
-19%synergy
Hourglass of the Lost
10%inclusion2 decks21 decks
9%synergy
Bandit's Haul
9.1%inclusion2 decks22 decks
8%synergy
Bounty Board
9.1%inclusion2 decks22 decks
7%synergy
Cursed Mirror
8.7%inclusion2 decks23 decks
6%synergy
Mind Stone
8.7%inclusion2 decks23 decks
0%synergy
Chrome Mox
8.7%inclusion2 decks23 decks
4%synergy
The Soul Stone
8.3%inclusion1 decks12 decks
6%synergy
Lands
Plains
100%inclusion23 decks23 decks
5%synergy
Swamp
96%inclusion22 decks23 decks
0%synergy
Mountain
96%inclusion22 decks23 decks
2%synergy
Command Tower
91%inclusion21 decks23 decks
-1%synergy
Forbidden Orchard
70%inclusion16 decks23 decks
67%synergy
Exotic Orchard
61%inclusion14 decks23 decks
9%synergy
Sacred Foundry
61%inclusion14 decks23 decks
16%synergy
Savai Triome
57%inclusion13 decks23 decks
18%synergy
Blood Crypt
57%inclusion13 decks23 decks
13%synergy
Godless Shrine
57%inclusion13 decks23 decks
9%synergy
Nomad Outpost
48%inclusion11 decks23 decks
-11%synergy
Arid Mesa
48%inclusion11 decks23 decks
16%synergy
Marsh Flats
48%inclusion11 decks23 decks
16%synergy
Caves of Koilos
43%inclusion10 decks23 decks
4%synergy
Dragonskull Summit
43%inclusion10 decks23 decks
-8%synergy
Spectator Seating
43%inclusion10 decks23 decks
12%synergy
Vault of Champions
43%inclusion10 decks23 decks
11%synergy
Bloodstained Mire
43%inclusion10 decks23 decks
11%synergy
Shattered Landscape
43%inclusion9 decks21 decks
24%synergy
Sundown Pass
39%inclusion9 decks23 decks
19%synergy
Isolated Chapel
39%inclusion9 decks23 decks
-14%synergy
Smoldering Marsh
35%inclusion8 decks23 decks
-2%synergy
Fetid Heath
35%inclusion8 decks23 decks
14%synergy
Battlefield Forge
35%inclusion8 decks23 decks
-5%synergy
Luxury Suite
35%inclusion8 decks23 decks
3%synergy
Clifftop Retreat
35%inclusion8 decks23 decks
-16%synergy
Sulfurous Springs
35%inclusion8 decks23 decks
7%synergy
Malakir Rebirth
30%inclusion7 decks23 decks
25%synergy
Shattered Sanctum
30%inclusion7 decks23 decks
7%synergy
Haunted Ridge
30%inclusion7 decks23 decks
10%synergy
Rugged Prairie
26%inclusion6 decks23 decks
9%synergy
Orzhov Basilica
26%inclusion6 decks23 decks
12%synergy
Fabled Passage
22%inclusion5 decks23 decks
14%synergy
Rakdos Carnarium
17%inclusion4 decks23 decks
5%synergy
Badlands
17%inclusion4 decks23 decks
5%synergy
Boros Garrison
17%inclusion4 decks23 decks
5%synergy
Needleverge Pathway
17%inclusion4 decks23 decks
9%synergy
Path of Ancestry
17%inclusion4 decks23 decks
-21%synergy
Plateau
17%inclusion4 decks23 decks
5%synergy
Scrubland
17%inclusion4 decks23 decks
5%synergy
Mana Confluence
17%inclusion4 decks23 decks
8%synergy
Silent Clearing
17%inclusion4 decks23 decks
14%synergy
Glittering Massif
15%inclusion2 decks13 decks
14%synergy
Legion Leadership
14%inclusion3 decks21 decks
10%synergy
Starting Town
13%inclusion2 decks15 decks
10%synergy
Prismatic Vista
13%inclusion3 decks23 decks
9%synergy
Shadowblood Ridge
13%inclusion3 decks23 decks
-2%synergy
Terramorphic Expanse
13%inclusion3 decks23 decks
-6%synergy
Brightclimb Pathway
13%inclusion3 decks23 decks
4%synergy
Shadowy Backstreet
13%inclusion3 decks23 decks
3%synergy
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