Kelsien, the Plague (Commander) - Core Control

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #426
21decks
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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Pain 101
20%inclusion1 decks5 decks
20%synergy
High Synergy Cards
Morbid Opportunist
100%inclusion21 decks21 decks
82%synergy
Basilisk Collar
86%inclusion18 decks21 decks
81%synergy
Sting, the Glinting Dagger
81%inclusion17 decks21 decks
79%synergy
Shay Cormac
80%inclusion16 decks20 decks
77%synergy
Otharri, Suns' Glory
81%inclusion17 decks21 decks
75%synergy
Rune of Mortality
71%inclusion15 decks21 decks
70%synergy
Minthara, Merciless Soul
71%inclusion15 decks21 decks
70%synergy
Mari, the Killing Quill
71%inclusion15 decks21 decks
65%synergy
Vorpal Sword
67%inclusion14 decks21 decks
64%synergy
Thornbite Staff
57%inclusion12 decks21 decks
56%synergy
Top Cards
Gorgon's Head
52%inclusion11 decks21 decks
51%synergy
You Are Already Dead
52%inclusion11 decks21 decks
51%synergy
Swords to Plowshares
52%inclusion11 decks21 decks
-10%synergy
Phyrexian Arena
52%inclusion11 decks21 decks
34%synergy
All-Out Assault
50%inclusion8 decks16 decks
38%synergy
Drumbellower
48%inclusion10 decks21 decks
46%synergy
Ertha Jo, Frontier Mentor
48%inclusion10 decks21 decks
47%synergy
Falthis, Shadowcat Familiar
48%inclusion10 decks21 decks
46%synergy
Night's Whisper
48%inclusion10 decks21 decks
34%synergy
Mirrodin Avenged
48%inclusion10 decks21 decks
47%synergy
Game Changers
Farewell
10%inclusion2 decks21 decks
-1%synergy
Creatures
Termination Facilitator
43%inclusion9 decks21 decks
41%synergy
Magda, the Hoardmaster
43%inclusion9 decks21 decks
41%synergy
Kalemne, Disciple of Iroas
43%inclusion9 decks21 decks
42%synergy
Maha, Its Feathers Night
40%inclusion8 decks20 decks
39%synergy
Mathas, Fiend Seeker
38%inclusion8 decks21 decks
36%synergy
White Plume Adventurer
38%inclusion8 decks21 decks
37%synergy
Harvester of Souls
38%inclusion8 decks21 decks
35%synergy
General's Enforcer
38%inclusion8 decks21 decks
30%synergy
Humble Defector
33%inclusion7 decks21 decks
31%synergy
Taii Wakeen, Perfect Shot
33%inclusion7 decks21 decks
33%synergy
Athreos, Shroud-Veiled
33%inclusion7 decks21 decks
32%synergy
Lae'zel, Vlaakith's Champion
33%inclusion7 decks21 decks
31%synergy
Kratos, Stoic Father
33%inclusion3 decks9 decks
33%synergy
Assault Intercessor
29%inclusion6 decks21 decks
28%synergy
Void Beckoner
29%inclusion6 decks21 decks
28%synergy
Daxos the Returned
29%inclusion6 decks21 decks
28%synergy
Slaughter Specialist
29%inclusion6 decks21 decks
28%synergy
Marvin, Murderous Mimic
26%inclusion5 decks19 decks
25%synergy
Sun Titan
24%inclusion5 decks21 decks
13%synergy
Archetype of Finality
24%inclusion5 decks21 decks
23%synergy
Robaran Mercenaries
19%inclusion4 decks21 decks
19%synergy
Village Pillagers
17%inclusion1 decks6 decks
16%synergy
Oft-Nabbed Goat
17%inclusion1 decks6 decks
16%synergy
High-Society Hunter
16%inclusion3 decks19 decks
14%synergy
Deathbringer Thoctar
14%inclusion3 decks21 decks
14%synergy
Mother of Runes
14%inclusion3 decks21 decks
7%synergy
Puresteel Paladin
14%inclusion3 decks21 decks
10%synergy
Sram, Senior Edificer
14%inclusion3 decks21 decks
11%synergy
Massacre Wurm
14%inclusion3 decks21 decks
14%synergy
Zagras, Thief of Heartbeats
14%inclusion3 decks21 decks
13%synergy
Queen Marchesa
14%inclusion3 decks21 decks
8%synergy
Goblin Sharpshooter
14%inclusion3 decks21 decks
14%synergy
Jirina, Dauntless General
14%inclusion3 decks21 decks
12%synergy
Vincent Valentine
14%inclusion2 decks14 decks
13%synergy
The Destined Black Mage
11%inclusion1 decks9 decks
11%synergy
Rinoa, Angel Wing
11%inclusion1 decks9 decks
10%synergy
Azula, Ruthless Firebender
11%inclusion1 decks9 decks
11%synergy
Abyssal Harvester
11%inclusion2 decks19 decks
10%synergy
Witch Enchanter
10%inclusion2 decks20 decks
3%synergy
Phlage, Titan of Fire's Fury
10%inclusion2 decks20 decks
9%synergy
Solemn Simulacrum
10%inclusion2 decks21 decks
-3%synergy
Blood Cultist
10%inclusion2 decks21 decks
9%synergy
Karlach, Fury of Avernus
10%inclusion2 decks21 decks
5%synergy
Weathered Wayfarer
10%inclusion2 decks21 decks
8%synergy
Lotho, Corrupt Shirriff
10%inclusion2 decks21 decks
-4%synergy
Syr Konrad, the Grim
10%inclusion2 decks21 decks
6%synergy
Yes Man, Personal Securitron
10%inclusion2 decks21 decks
8%synergy
Ankle Shanker
10%inclusion2 decks21 decks
6%synergy
Blood Artist
10%inclusion2 decks21 decks
-9%synergy
Stoneforge Mystic
10%inclusion2 decks21 decks
7%synergy
Instants
Boros Charm
38%inclusion8 decks21 decks
9%synergy
Stroke of Midnight
33%inclusion7 decks21 decks
22%synergy
Anguished Unmaking
29%inclusion6 decks21 decks
-5%synergy
Crackling Doom
29%inclusion6 decks21 decks
12%synergy
Fracture
29%inclusion6 decks21 decks
23%synergy
Generous Gift
29%inclusion6 decks21 decks
10%synergy
Legion Leadership
25%inclusion5 decks20 decks
21%synergy
Inevitable Defeat
24%inclusion4 decks17 decks
18%synergy
Chaos Warp
19%inclusion4 decks21 decks
3%synergy
Bladebrand
19%inclusion4 decks21 decks
19%synergy
Despark
19%inclusion4 decks21 decks
5%synergy
Sejiri Shelter
19%inclusion4 decks21 decks
17%synergy
Path to Exile
19%inclusion4 decks21 decks
-28%synergy
Reprieve
19%inclusion4 decks21 decks
16%synergy
Untimely Malfunction
15%inclusion3 decks20 decks
10%synergy
Loran's Escape
14%inclusion3 decks21 decks
13%synergy
Return the Favor
14%inclusion3 decks21 decks
13%synergy
Rakdos Charm
14%inclusion3 decks21 decks
5%synergy
Wear // Tear
14%inclusion3 decks21 decks
3%synergy
Offer Immortality
14%inclusion3 decks21 decks
13%synergy
Deflecting Palm
14%inclusion3 decks21 decks
8%synergy
Mortify
14%inclusion3 decks21 decks
-1%synergy
Alesha's Legacy
13%inclusion2 decks15 decks
12%synergy
Dawn's Truce
10%inclusion2 decks20 decks
3%synergy
Dire Tactics
10%inclusion2 decks21 decks
7%synergy
Thrill of Possibility
10%inclusion2 decks21 decks
2%synergy
Toxin Analysis
10%inclusion2 decks21 decks
9%synergy
Lightning Bolt
10%inclusion2 decks21 decks
6%synergy
Flawless Maneuver
10%inclusion2 decks21 decks
-5%synergy
Battle-Rage Blessing
10%inclusion2 decks21 decks
9%synergy
Dark Ritual
10%inclusion2 decks21 decks
-7%synergy
Outrageous Robbery
10%inclusion2 decks21 decks
9%synergy
Blacksmith's Skill
10%inclusion2 decks21 decks
8%synergy
Terminate
10%inclusion2 decks21 decks
-3%synergy
Infernal Grasp
10%inclusion2 decks21 decks
7%synergy
Big Score
10%inclusion2 decks21 decks
-1%synergy
Malakir Rebirth
10%inclusion2 decks21 decks
4%synergy
Bolt Bend
10%inclusion2 decks21 decks
8%synergy
Mandate of Peace
10%inclusion2 decks21 decks
9%synergy
Touch of Moonglove
10%inclusion2 decks21 decks
9%synergy
Inkshield
10%inclusion2 decks21 decks
2%synergy
Redirect Lightning
8.3%inclusion1 decks12 decks
2%synergy
Restoration Magic
7.7%inclusion1 decks13 decks
5%synergy
Espers to Magicite
7.1%inclusion1 decks14 decks
5%synergy
Maximum Overdrive
5.6%inclusion1 decks18 decks
5%synergy
Fell the Profane
5.0%inclusion1 decks20 decks
-1%synergy
Perch Protection
5.0%inclusion1 decks20 decks
5%synergy
Parting Gust
5.0%inclusion1 decks20 decks
4%synergy
Sorceries
Open the Armory
43%inclusion9 decks21 decks
39%synergy
Painful Truths
43%inclusion9 decks21 decks
35%synergy
Ruinous Ultimatum
43%inclusion9 decks21 decks
4%synergy
Sevinne's Reclamation
38%inclusion8 decks21 decks
30%synergy
Mythos of Snapdax
38%inclusion8 decks21 decks
33%synergy
Sign in Blood
38%inclusion8 decks21 decks
30%synergy
Vandalblast
33%inclusion7 decks21 decks
23%synergy
Unearth
33%inclusion7 decks21 decks
31%synergy
Read the Bones
24%inclusion5 decks21 decks
15%synergy
Blasphemous Act
19%inclusion4 decks21 decks
-4%synergy
Chandra's Ignition
19%inclusion4 decks21 decks
17%synergy
Mutinous Massacre
17%inclusion2 decks12 decks
16%synergy
Bloodsoaked Insight
15%inclusion3 decks20 decks
13%synergy
Sundering Eruption
15%inclusion3 decks20 decks
12%synergy
Feed the Swarm
14%inclusion3 decks21 decks
9%synergy
Single Combat
14%inclusion3 decks21 decks
13%synergy
Call of the Death-Dweller
14%inclusion3 decks21 decks
14%synergy
Nibelheim Aflame
14%inclusion2 decks14 decks
14%synergy
Mega Flare
11%inclusion1 decks9 decks
11%synergy
Day of Black Sun
11%inclusion1 decks9 decks
10%synergy
Momo's Heist
11%inclusion1 decks9 decks
11%synergy
Austere Command
10%inclusion2 decks21 decks
2%synergy
Diabolic Tutor
10%inclusion2 decks21 decks
3%synergy
Divine Reckoning
10%inclusion2 decks21 decks
9%synergy
Faithless Looting
10%inclusion2 decks21 decks
-6%synergy
Ambition's Cost
10%inclusion2 decks21 decks
8%synergy
Reanimate
10%inclusion2 decks21 decks
-8%synergy
Insatiable Avarice
10%inclusion2 decks21 decks
7%synergy
Cleansing Nova
10%inclusion2 decks21 decks
8%synergy
Damn
10%inclusion2 decks21 decks
-8%synergy
Steelshaper's Gift
10%inclusion2 decks21 decks
6%synergy
Recommission
10%inclusion2 decks21 decks
9%synergy
Drown in Ichor
10%inclusion2 decks21 decks
9%synergy
Hymn of the Faller
8.3%inclusion1 decks12 decks
8%synergy
Explosive Getaway
5.6%inclusion1 decks18 decks
5%synergy
Blasphemous Edict
5.3%inclusion1 decks19 decks
1%synergy
Petty Larceny
5.0%inclusion1 decks20 decks
5%synergy
Tempt with Bunnies
5.0%inclusion1 decks20 decks
4%synergy
Cruelclaw's Heist
5.0%inclusion1 decks20 decks
5%synergy
Diresight
5.0%inclusion1 decks20 decks
4%synergy
Utility Artifacts
Swiftfoot Boots
43%inclusion9 decks21 decks
11%synergy
Shadowspear
29%inclusion6 decks21 decks
24%synergy
Gorgon Flail
29%inclusion6 decks21 decks
28%synergy
Whispersilk Cloak
29%inclusion6 decks21 decks
23%synergy
Hunter's Blowgun
29%inclusion6 decks21 decks
28%synergy
Lightning Greaves
29%inclusion6 decks21 decks
-6%synergy
Quietus Spike
24%inclusion5 decks21 decks
23%synergy
Wayfarer's Bauble
24%inclusion5 decks21 decks
15%synergy
Magewright's Stone
24%inclusion5 decks21 decks
23%synergy
Dragonfire Blade
20%inclusion3 decks15 decks
19%synergy
Glaring Spotlight
19%inclusion4 decks21 decks
19%synergy
The Masamune
15%inclusion2 decks13 decks
15%synergy
Brotherhood Regalia
15%inclusion3 decks20 decks
12%synergy
Illusionist's Bracers
14%inclusion3 decks21 decks
13%synergy
Hidden Blade
14%inclusion3 decks21 decks
14%synergy
Mask of Griselbrand
14%inclusion3 decks21 decks
13%synergy
Reaper's Talisman
14%inclusion3 decks21 decks
14%synergy
The Fire Nation Drill
11%inclusion1 decks9 decks
11%synergy
Leyline Axe
11%inclusion2 decks19 decks
9%synergy
Peter Parker's Camera
10%inclusion1 decks10 decks
10%synergy
Mithril Coat
10%inclusion2 decks21 decks
4%synergy
Thousand-Year Elixir
10%inclusion2 decks21 decks
8%synergy
Battlemage's Bracers
10%inclusion2 decks21 decks
9%synergy
Haystack
10%inclusion2 decks21 decks
8%synergy
Mask of Memory
10%inclusion2 decks21 decks
8%synergy
Sword of the Animist
10%inclusion2 decks21 decks
0%synergy
Long-Range Sensor
8.3%inclusion1 decks12 decks
7%synergy
Requiem Monolith
8.3%inclusion1 decks12 decks
8%synergy
Genji Glove
7.7%inclusion1 decks13 decks
6%synergy
The Darkness Crystal
7.1%inclusion1 decks14 decks
6%synergy
The Fire Crystal
7.1%inclusion1 decks14 decks
4%synergy
Chainsaw
5.0%inclusion1 decks20 decks
4%synergy
Smoke Bomb
5.0%inclusion1 decks20 decks
4%synergy
Enchantments
Dazzling Theater // Prop Room
42%inclusion8 decks19 decks
40%synergy
Reconnaissance
38%inclusion8 decks21 decks
27%synergy
Gift of Doom
29%inclusion6 decks21 decks
28%synergy
Nowhere to Run
25%inclusion5 decks20 decks
24%synergy
Fighter Class
24%inclusion5 decks21 decks
21%synergy
Kaya's Ghostform
24%inclusion5 decks21 decks
22%synergy
Glasswing Grace
20%inclusion4 decks20 decks
19%synergy
Aspect of Gorgon
19%inclusion4 decks21 decks
19%synergy
Agent of the Shadow Thieves
19%inclusion4 decks21 decks
18%synergy
At Knifepoint
19%inclusion4 decks21 decks
18%synergy
Life Insurance
14%inclusion3 decks21 decks
12%synergy
Blind Obedience
14%inclusion3 decks21 decks
9%synergy
Black Market Connections
14%inclusion3 decks21 decks
-1%synergy
Trouble in Pairs
14%inclusion3 decks21 decks
9%synergy
Search for Dagger
11%inclusion1 decks9 decks
11%synergy
Descent into Avernus
10%inclusion2 decks21 decks
7%synergy
Black Market
10%inclusion2 decks21 decks
4%synergy
Ghoulish Impetus
10%inclusion2 decks21 decks
9%synergy
Curse of Opulence
10%inclusion2 decks21 decks
4%synergy
Court of Ardenvale
10%inclusion2 decks21 decks
8%synergy
Revel in Riches
10%inclusion2 decks21 decks
3%synergy
Chorale of the Void
8.3%inclusion1 decks12 decks
8%synergy
Fated Firepower
8.3%inclusion1 decks12 decks
6%synergy
Eye of Nidhogg
7.1%inclusion1 decks14 decks
7%synergy
Sidequest: Catch a Fish
5.9%inclusion1 decks17 decks
6%synergy
Cracked Skull
5.3%inclusion1 decks19 decks
5%synergy
Derelict Attic // Widow's Walk
5.3%inclusion1 decks19 decks
5%synergy
Unholy Annex // Ritual Chamber
5.3%inclusion1 decks19 decks
4%synergy
Alchemist's Talent
5.0%inclusion1 decks20 decks
2%synergy
Artist's Talent
5.0%inclusion1 decks20 decks
5%synergy
Utility Lands
Rogue's Passage
62%inclusion13 decks21 decks
38%synergy
Vault of the Archangel
57%inclusion12 decks21 decks
34%synergy
Bojuka Bog
52%inclusion11 decks21 decks
21%synergy
Arcane Lighthouse
43%inclusion9 decks21 decks
42%synergy
Axgard Armory
38%inclusion8 decks21 decks
36%synergy
Detection Tower
19%inclusion4 decks21 decks
18%synergy
Karn's Bastion
14%inclusion3 decks21 decks
13%synergy
Buried Ruin
10%inclusion2 decks21 decks
6%synergy
Maze of Ith
10%inclusion2 decks21 decks
6%synergy
Scavenger Grounds
10%inclusion2 decks21 decks
8%synergy
Command Beacon
10%inclusion2 decks21 decks
4%synergy
Sunhome, Fortress of the Legion
10%inclusion2 decks21 decks
6%synergy
Reliquary Tower
10%inclusion2 decks21 decks
-6%synergy
Urborg, Tomb of Yawgmoth
10%inclusion2 decks21 decks
-4%synergy
Susur Secundi, Void Altar
8.3%inclusion1 decks12 decks
7%synergy
Cori Mountain Monastery
6.3%inclusion1 decks16 decks
4%synergy
Spymaster's Vault
5.0%inclusion1 decks20 decks
4%synergy
Monumental Henge
5.0%inclusion1 decks20 decks
4%synergy
Mana Artifacts
Arcane Signet
81%inclusion17 decks21 decks
-5%synergy
Rakdos Signet
67%inclusion14 decks21 decks
37%synergy
Orzhov Signet
67%inclusion14 decks21 decks
35%synergy
Boros Signet
57%inclusion12 decks21 decks
29%synergy
Sol Ring
57%inclusion12 decks21 decks
-31%synergy
Patriar's Seal
52%inclusion11 decks21 decks
50%synergy
Fellwar Stone
38%inclusion8 decks21 decks
10%synergy
Bounty Board
38%inclusion8 decks21 decks
36%synergy
Talisman of Conviction
33%inclusion7 decks21 decks
-8%synergy
Talisman of Hierarchy
33%inclusion7 decks21 decks
-7%synergy
Aetheric Amplifier
22%inclusion4 decks18 decks
22%synergy
Talisman of Indulgence
19%inclusion4 decks21 decks
-18%synergy
Commander's Sphere
10%inclusion2 decks21 decks
-5%synergy
Bandit's Haul
10%inclusion2 decks21 decks
8%synergy
Mind Stone
10%inclusion2 decks21 decks
1%synergy
Hourglass of the Lost
5.0%inclusion1 decks20 decks
5%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
Dragonskull Summit
86%inclusion18 decks21 decks
34%synergy
Nomad Outpost
81%inclusion17 decks21 decks
23%synergy
Isolated Chapel
81%inclusion17 decks21 decks
28%synergy
Clifftop Retreat
81%inclusion17 decks21 decks
30%synergy
Exotic Orchard
71%inclusion15 decks21 decks
19%synergy
Shattered Landscape
60%inclusion12 decks20 decks
41%synergy
Caves of Koilos
52%inclusion11 decks21 decks
13%synergy
Path of Ancestry
52%inclusion11 decks21 decks
14%synergy
Battlefield Forge
43%inclusion9 decks21 decks
3%synergy
Temple of Triumph
43%inclusion9 decks21 decks
21%synergy
Haunted Ridge
43%inclusion9 decks21 decks
23%synergy
Temple of Silence
43%inclusion9 decks21 decks
20%synergy
Sulfurous Springs
43%inclusion9 decks21 decks
15%synergy
Smoldering Marsh
38%inclusion8 decks21 decks
1%synergy
Fetid Heath
38%inclusion8 decks21 decks
17%synergy
Sacred Foundry
38%inclusion8 decks21 decks
-7%synergy
Godless Shrine
38%inclusion8 decks21 decks
-9%synergy
Forbidden Orchard
38%inclusion8 decks21 decks
36%synergy
Savai Triome
33%inclusion7 decks21 decks
-5%synergy
Blood Crypt
33%inclusion7 decks21 decks
-11%synergy
Sundown Pass
33%inclusion7 decks21 decks
13%synergy
Evolving Wilds
33%inclusion7 decks21 decks
7%synergy
Tainted Field
29%inclusion6 decks21 decks
17%synergy
Temple of Malice
29%inclusion6 decks21 decks
12%synergy
Rugged Prairie
29%inclusion6 decks21 decks
11%synergy
Shattered Sanctum
29%inclusion6 decks21 decks
5%synergy
Vault of Champions
29%inclusion6 decks21 decks
-4%synergy
Legion Leadership
25%inclusion5 decks20 decks
21%synergy
Luxury Suite
24%inclusion5 decks21 decks
-7%synergy
Spectator Seating
24%inclusion5 decks21 decks
-7%synergy
Glasswing Grace
20%inclusion4 decks20 decks
19%synergy
Shadowblood Ridge
19%inclusion4 decks21 decks
4%synergy
Terramorphic Expanse
19%inclusion4 decks21 decks
0%synergy
Desolate Mire
19%inclusion4 decks21 decks
7%synergy
Sunscorched Divide
19%inclusion4 decks21 decks
13%synergy
Orzhov Basilica
19%inclusion4 decks21 decks
5%synergy
Tainted Peak
19%inclusion4 decks21 decks
9%synergy
Arid Mesa
19%inclusion4 decks21 decks
-12%synergy
Sejiri Shelter
19%inclusion4 decks21 decks
17%synergy
Marsh Flats
19%inclusion4 decks21 decks
-12%synergy
Bloodsoaked Insight
15%inclusion3 decks20 decks
13%synergy
Sundering Eruption
15%inclusion3 decks20 decks
12%synergy
Myriad Landscape
14%inclusion3 decks21 decks
3%synergy
Foreboding Ruins
14%inclusion3 decks21 decks
3%synergy
Furycalm Snarl
14%inclusion3 decks21 decks
5%synergy
Boros Garrison
14%inclusion3 decks21 decks
2%synergy
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