Kelsien, the Plague (Commander) - Upgraded Control

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Background image for Rebuilding Kelsien, the Plague with Avatar: The Last Airbender Eternal
Ezra Sassaman
Nov 20, 2025
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.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
Hexing Squelcher
22%inclusion2 decks9 decks
17%synergy
Collective Inferno
13%inclusion1 decks8 decks
11%synergy
High Synergy Cards
Basilisk Collar
96%inclusion27 decks28 decks
92%synergy
Rune of Mortality
82%inclusion23 decks28 decks
81%synergy
Vorpal Sword
82%inclusion23 decks28 decks
80%synergy
Sting, the Glinting Dagger
71%inclusion20 decks28 decks
70%synergy
Thornbite Staff
68%inclusion19 decks28 decks
66%synergy
Drumbellower
64%inclusion18 decks28 decks
62%synergy
Gorgon's Head
61%inclusion17 decks28 decks
59%synergy
Minthara, Merciless Soul
61%inclusion17 decks28 decks
59%synergy
Morbid Opportunist
75%inclusion21 decks28 decks
57%synergy
General's Enforcer
64%inclusion18 decks28 decks
56%synergy
Top Cards
Mari, the Killing Quill
61%inclusion17 decks28 decks
54%synergy
Otharri, Suns' Glory
61%inclusion17 decks28 decks
55%synergy
Swiftfoot Boots
61%inclusion17 decks28 decks
29%synergy
Night's Whisper
57%inclusion16 decks28 decks
44%synergy
Shadowspear
57%inclusion16 decks28 decks
53%synergy
Open the Armory
54%inclusion15 decks28 decks
49%synergy
Falthis, Shadowcat Familiar
50%inclusion14 decks28 decks
49%synergy
Aspect of Gorgon
46%inclusion13 decks28 decks
46%synergy
Read the Bones
46%inclusion13 decks28 decks
37%synergy
Mother of Runes
46%inclusion13 decks28 decks
39%synergy
Game Changers
Teferi's Protection
29%inclusion8 decks28 decks
9%synergy
Smothering Tithe
25%inclusion7 decks28 decks
-1%synergy
Demonic Tutor
25%inclusion7 decks28 decks
6%synergy
Enlightened Tutor
25%inclusion7 decks28 decks
13%synergy
Ancient Tomb
11%inclusion3 decks28 decks
3%synergy
Farewell
11%inclusion3 decks28 decks
0%synergy
Vampiric Tutor
11%inclusion3 decks28 decks
-4%synergy
Opposition Agent
7.1%inclusion2 decks28 decks
4%synergy
Orcish Bowmasters
7.1%inclusion2 decks28 decks
2%synergy
Creatures
Shay Cormac
43%inclusion12 decks28 decks
40%synergy
Lae'zel, Vlaakith's Champion
39%inclusion11 decks28 decks
37%synergy
Maha, Its Feathers Night
36%inclusion10 decks28 decks
34%synergy
Stoneforge Mystic
36%inclusion10 decks28 decks
33%synergy
Magda, the Hoardmaster
32%inclusion9 decks28 decks
30%synergy
Harvester of Souls
29%inclusion8 decks28 decks
25%synergy
Void Beckoner
29%inclusion8 decks28 decks
28%synergy
Puresteel Paladin
29%inclusion8 decks28 decks
25%synergy
Kalemne, Disciple of Iroas
29%inclusion8 decks28 decks
28%synergy
White Plume Adventurer
25%inclusion7 decks28 decks
24%synergy
Esper Sentinel
25%inclusion7 decks28 decks
7%synergy
Sun Titan
25%inclusion7 decks28 decks
14%synergy
Kratos, Stoic Father
22%inclusion4 decks18 decks
22%synergy
Daxos the Returned
21%inclusion6 decks28 decks
21%synergy
Loran of the Third Path
21%inclusion6 decks28 decks
15%synergy
Humble Defector
18%inclusion5 decks28 decks
15%synergy
Mathas, Fiend Seeker
18%inclusion5 decks28 decks
16%synergy
Sram, Senior Edificer
18%inclusion5 decks28 decks
15%synergy
Kellan, the Fae-Blooded
14%inclusion4 decks28 decks
13%synergy
Marvin, Murderous Mimic
14%inclusion4 decks28 decks
13%synergy
Deathbringer Thoctar
14%inclusion4 decks28 decks
14%synergy
Blood Artist
14%inclusion4 decks28 decks
-4%synergy
Assault Intercessor
14%inclusion4 decks28 decks
14%synergy
Giver of Runes
14%inclusion4 decks28 decks
11%synergy
Termination Facilitator
14%inclusion4 decks28 decks
13%synergy
Bastion Protector
14%inclusion4 decks28 decks
13%synergy
Slaughter Specialist
14%inclusion4 decks28 decks
13%synergy
Armored Skyhunter
14%inclusion4 decks28 decks
12%synergy
Bureau Headmaster
14%inclusion4 decks28 decks
14%synergy
Akiri, Fearless Voyager
14%inclusion4 decks28 decks
12%synergy
Massacre Girl, Known Killer
14%inclusion4 decks28 decks
12%synergy
Goblin Sharpshooter
14%inclusion4 decks28 decks
14%synergy
Archetype of Finality
14%inclusion4 decks28 decks
13%synergy
Cloud, Midgar Mercenary
14%inclusion3 decks22 decks
12%synergy
Karlach, Fury of Avernus
11%inclusion3 decks28 decks
7%synergy
Ertha Jo, Frontier Mentor
11%inclusion3 decks28 decks
10%synergy
Aurelia, the Warleader
11%inclusion3 decks28 decks
-7%synergy
Taii Wakeen, Perfect Shot
11%inclusion3 decks28 decks
10%synergy
Species Specialist
11%inclusion3 decks28 decks
8%synergy
Vulshok Sorcerer
11%inclusion3 decks28 decks
10%synergy
Reyav, Master Smith
11%inclusion3 decks28 decks
10%synergy
Magus of the Wheel
11%inclusion3 decks28 decks
10%synergy
Dauthi Voidwalker
11%inclusion3 decks28 decks
7%synergy
Vincent Valentine
9.1%inclusion2 decks22 decks
8%synergy
Solemn Simulacrum
7.1%inclusion2 decks28 decks
-6%synergy
Blood Cultist
7.1%inclusion2 decks28 decks
7%synergy
Archivist of Oghma
7.1%inclusion2 decks28 decks
4%synergy
Heliod's Pilgrim
7.1%inclusion2 decks28 decks
7%synergy
Weathered Wayfarer
7.1%inclusion2 decks28 decks
5%synergy
Astor, Bearer of Blades
7.1%inclusion2 decks28 decks
6%synergy
Instants
Anguished Unmaking
46%inclusion13 decks28 decks
12%synergy
Stroke of Midnight
43%inclusion12 decks28 decks
31%synergy
Boros Charm
39%inclusion11 decks28 decks
10%synergy
Swords to Plowshares
39%inclusion11 decks28 decks
-23%synergy
Generous Gift
32%inclusion9 decks28 decks
13%synergy
Path to Exile
29%inclusion8 decks28 decks
-18%synergy
Fracture
25%inclusion7 decks28 decks
19%synergy
You Are Already Dead
21%inclusion6 decks28 decks
20%synergy
Despark
21%inclusion6 decks28 decks
7%synergy
Chaos Warp
18%inclusion5 decks28 decks
2%synergy
Flawless Maneuver
18%inclusion5 decks28 decks
3%synergy
Wear // Tear
18%inclusion5 decks28 decks
6%synergy
Crackling Doom
18%inclusion5 decks28 decks
1%synergy
Dire Tactics
14%inclusion4 decks28 decks
11%synergy
Imp's Mischief
14%inclusion4 decks28 decks
13%synergy
Bladebrand
14%inclusion4 decks28 decks
14%synergy
Valakut Awakening
14%inclusion4 decks28 decks
11%synergy
Loran's Escape
11%inclusion3 decks28 decks
9%synergy
Thrill of Possibility
11%inclusion3 decks28 decks
3%synergy
Dark Ritual
11%inclusion3 decks28 decks
-5%synergy
Terminate
11%inclusion3 decks28 decks
-2%synergy
Tainted Strike
11%inclusion3 decks28 decks
10%synergy
Disenchant
11%inclusion3 decks28 decks
9%synergy
Deflecting Swat
11%inclusion3 decks28 decks
-5%synergy
Bedevil
11%inclusion3 decks28 decks
4%synergy
Touch of Moonglove
11%inclusion3 decks28 decks
11%synergy
Inkshield
11%inclusion3 decks28 decks
3%synergy
Mirrodin Avenged
11%inclusion3 decks28 decks
10%synergy
Mortify
11%inclusion3 decks28 decks
-5%synergy
Alesha's Legacy
8.0%inclusion2 decks25 decks
7%synergy
Fell the Profane
7.1%inclusion2 decks28 decks
1%synergy
Toxin Analysis
7.1%inclusion2 decks28 decks
7%synergy
Dawn's Truce
7.1%inclusion2 decks28 decks
0%synergy
Deadly Dispute
7.1%inclusion2 decks28 decks
-16%synergy
Gods Willing
7.1%inclusion2 decks28 decks
6%synergy
Unexpected Windfall
7.1%inclusion2 decks28 decks
2%synergy
Blacksmith's Skill
7.1%inclusion2 decks28 decks
6%synergy
Rakdos Charm
7.1%inclusion2 decks28 decks
-2%synergy
Abstruse Appropriation
7.1%inclusion2 decks28 decks
6%synergy
Big Score
7.1%inclusion2 decks28 decks
-3%synergy
Malakir Rebirth
7.1%inclusion2 decks28 decks
2%synergy
Legion Leadership
7.1%inclusion2 decks28 decks
3%synergy
Surge of Salvation
7.1%inclusion2 decks28 decks
6%synergy
Offer Immortality
7.1%inclusion2 decks28 decks
6%synergy
Demand Answers
7.1%inclusion2 decks28 decks
2%synergy
Sejiri Shelter
7.1%inclusion2 decks28 decks
5%synergy
Deflecting Palm
7.1%inclusion2 decks28 decks
1%synergy
Reprieve
7.1%inclusion2 decks28 decks
4%synergy
Tragic Slip
7.1%inclusion2 decks28 decks
6%synergy
Azula Always Lies
5.3%inclusion1 decks19 decks
5%synergy
Sorceries
Steelshaper's Gift
46%inclusion13 decks28 decks
43%synergy
Painful Truths
43%inclusion12 decks28 decks
34%synergy
Ruinous Ultimatum
36%inclusion10 decks28 decks
-4%synergy
Sign in Blood
36%inclusion10 decks28 decks
28%synergy
Mythos of Snapdax
29%inclusion8 decks28 decks
23%synergy
Vandalblast
25%inclusion7 decks28 decks
14%synergy
Call of the Death-Dweller
21%inclusion6 decks28 decks
21%synergy
Damn
21%inclusion6 decks28 decks
3%synergy
Blasphemous Act
18%inclusion5 decks28 decks
-5%synergy
Grim Tutor
18%inclusion5 decks28 decks
14%synergy
Sevinne's Reclamation
14%inclusion4 decks28 decks
7%synergy
Unearth
11%inclusion3 decks28 decks
8%synergy
Idyllic Tutor
11%inclusion3 decks28 decks
9%synergy
Single Combat
11%inclusion3 decks28 decks
9%synergy
Reanimate
11%inclusion3 decks28 decks
-6%synergy
Drown in Ichor
11%inclusion3 decks28 decks
10%synergy
Divine Reckoning
7.1%inclusion2 decks28 decks
7%synergy
Wrath of God
7.1%inclusion2 decks28 decks
3%synergy
Faithless Looting
7.1%inclusion2 decks28 decks
-8%synergy
Feed the Swarm
7.1%inclusion2 decks28 decks
2%synergy
Pirate's Pillage
7.1%inclusion2 decks28 decks
6%synergy
Unfinished Business
7.1%inclusion2 decks28 decks
7%synergy
Tragic Arrogance
7.1%inclusion2 decks28 decks
5%synergy
Toxic Deluge
7.1%inclusion2 decks28 decks
-1%synergy
Chandra's Ignition
7.1%inclusion2 decks28 decks
5%synergy
Avatar's Wrath
6.3%inclusion1 decks16 decks
2%synergy
Hymn of the Faller
5.3%inclusion1 decks19 decks
5%synergy
Utility Artifacts
Gorgon Flail
46%inclusion13 decks28 decks
46%synergy
Illusionist's Bracers
43%inclusion12 decks28 decks
41%synergy
Magewright's Stone
39%inclusion11 decks28 decks
38%synergy
Quietus Spike
36%inclusion10 decks28 decks
34%synergy
Hunter's Blowgun
36%inclusion10 decks28 decks
35%synergy
Thousand-Year Elixir
32%inclusion9 decks28 decks
31%synergy
The Masamune
27%inclusion6 decks22 decks
27%synergy
Mithril Coat
25%inclusion7 decks28 decks
19%synergy
Lightning Greaves
25%inclusion7 decks28 decks
-9%synergy
Glaring Spotlight
21%inclusion6 decks28 decks
21%synergy
Robe of Stars
21%inclusion6 decks28 decks
20%synergy
Hammer of Nazahn
21%inclusion6 decks28 decks
19%synergy
Brotherhood Regalia
18%inclusion5 decks28 decks
15%synergy
Puppet Strings
18%inclusion5 decks28 decks
18%synergy
Dragonfire Blade
16%inclusion4 decks25 decks
15%synergy
Reaper's Talisman
14%inclusion4 decks28 decks
14%synergy
Champion's Helm
14%inclusion4 decks28 decks
13%synergy
Wayfarer's Bauble
11%inclusion3 decks28 decks
2%synergy
Umbral Mantle
11%inclusion3 decks28 decks
11%synergy
Trailblazer's Boots
11%inclusion3 decks28 decks
9%synergy
Whispersilk Cloak
11%inclusion3 decks28 decks
5%synergy
Scythe of the Wretched
11%inclusion3 decks28 decks
11%synergy
Battlemage's Bracers
11%inclusion3 decks28 decks
10%synergy
Blackblade Reforged
11%inclusion3 decks28 decks
6%synergy
Hidden Blade
7.1%inclusion2 decks28 decks
6%synergy
Embercleave
7.1%inclusion2 decks28 decks
4%synergy
Prowler's Helm
7.1%inclusion2 decks28 decks
7%synergy
Skullclamp
7.1%inclusion2 decks28 decks
-22%synergy
Conqueror's Flail
7.1%inclusion2 decks28 decks
6%synergy
Darksteel Plate
7.1%inclusion2 decks28 decks
5%synergy
Rings of Brighthearth
7.1%inclusion2 decks28 decks
7%synergy
Mask of Memory
7.1%inclusion2 decks28 decks
6%synergy
Staff of Domination
7.1%inclusion2 decks28 decks
7%synergy
Sword of the Animist
7.1%inclusion2 decks28 decks
-2%synergy
Dowsing Dagger
7.1%inclusion2 decks28 decks
6%synergy
The Fire Nation Drill
5.9%inclusion1 decks17 decks
5%synergy
The Seriema
5.0%inclusion1 decks20 decks
4%synergy
Enchantments
Fighter Class
46%inclusion13 decks28 decks
44%synergy
Gift of Doom
43%inclusion12 decks28 decks
42%synergy
Dazzling Theater // Prop Room
36%inclusion10 decks28 decks
34%synergy
Sigarda's Aid
25%inclusion7 decks28 decks
22%synergy
Nowhere to Run
25%inclusion7 decks28 decks
24%synergy
Phyrexian Arena
25%inclusion7 decks28 decks
6%synergy
All-Out Assault
24%inclusion6 decks25 decks
12%synergy
Kaya's Ghostform
21%inclusion6 decks28 decks
19%synergy
Revel in Riches
21%inclusion6 decks28 decks
15%synergy
Gift of Immortality
18%inclusion5 decks28 decks
17%synergy
Reconnaissance
18%inclusion5 decks28 decks
7%synergy
Black Market Connections
18%inclusion5 decks28 decks
2%synergy
Forge Anew
14%inclusion4 decks28 decks
12%synergy
Grave Betrayal
14%inclusion4 decks28 decks
14%synergy
Eye of Nidhogg
14%inclusion3 decks22 decks
13%synergy
Black Market
11%inclusion3 decks28 decks
5%synergy
Aura of Silence
11%inclusion3 decks28 decks
10%synergy
Trouble in Pairs
11%inclusion3 decks28 decks
6%synergy
Price of Glory
7.1%inclusion2 decks28 decks
7%synergy
Forging the Tyrite Sword
7.1%inclusion2 decks28 decks
6%synergy
Retreat to Hagra
7.1%inclusion2 decks28 decks
7%synergy
Phyresis
7.1%inclusion2 decks28 decks
7%synergy
Eternal Thirst
7.1%inclusion2 decks28 decks
7%synergy
Everlasting Torment
7.1%inclusion2 decks28 decks
7%synergy
Gauntlets of Light
7.1%inclusion2 decks28 decks
7%synergy
Ghostly Prison
7.1%inclusion2 decks28 decks
0%synergy
Obsessive Pursuit
6.7%inclusion1 decks15 decks
5%synergy
Super State
5.0%inclusion1 decks20 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
14%inclusion4 decks28 decks
14%synergy
Nahiri, the Harbinger
11%inclusion3 decks28 decks
10%synergy
Utility Lands
Rogue's Passage
61%inclusion17 decks28 decks
37%synergy
Bojuka Bog
54%inclusion15 decks28 decks
23%synergy
Vault of the Archangel
50%inclusion14 decks28 decks
27%synergy
Arcane Lighthouse
46%inclusion13 decks28 decks
45%synergy
Detection Tower
32%inclusion9 decks28 decks
32%synergy
Urborg, Tomb of Yawgmoth
21%inclusion6 decks28 decks
8%synergy
Buried Ruin
18%inclusion5 decks28 decks
15%synergy
Urza's Saga
14%inclusion4 decks28 decks
10%synergy
Karn's Bastion
14%inclusion4 decks28 decks
13%synergy
Command Beacon
11%inclusion3 decks28 decks
5%synergy
Eiganjo, Seat of the Empire
11%inclusion3 decks28 decks
4%synergy
Sunhome, Fortress of the Legion
11%inclusion3 decks28 decks
7%synergy
Reliquary Tower
11%inclusion3 decks28 decks
-5%synergy
Shizo, Death's Storehouse
7.1%inclusion2 decks28 decks
0%synergy
Arena of Glory
7.1%inclusion2 decks28 decks
0%synergy
Muraganda Raceway
7.1%inclusion2 decks28 decks
7%synergy
Axgard Armory
7.1%inclusion2 decks28 decks
5%synergy
Mana Artifacts
Arcane Signet
89%inclusion25 decks28 decks
3%synergy
Sol Ring
86%inclusion24 decks28 decks
-3%synergy
Talisman of Indulgence
61%inclusion17 decks28 decks
24%synergy
Talisman of Hierarchy
57%inclusion16 decks28 decks
16%synergy
Talisman of Conviction
54%inclusion15 decks28 decks
12%synergy
Orzhov Signet
54%inclusion15 decks28 decks
22%synergy
Patriar's Seal
50%inclusion14 decks28 decks
48%synergy
Rakdos Signet
46%inclusion13 decks28 decks
16%synergy
Boros Signet
43%inclusion12 decks28 decks
15%synergy
Fellwar Stone
29%inclusion8 decks28 decks
1%synergy
Chromatic Lantern
25%inclusion7 decks28 decks
14%synergy
Mind Stone
18%inclusion5 decks28 decks
9%synergy
Bandit's Haul
11%inclusion3 decks28 decks
9%synergy
Bounty Board
11%inclusion3 decks28 decks
9%synergy
Commander's Sphere
7.1%inclusion2 decks28 decks
-7%synergy
Staff of Compleation
7.1%inclusion2 decks28 decks
7%synergy
Aetheric Amplifier
7.1%inclusion2 decks28 decks
7%synergy
Thought Vessel
7.1%inclusion2 decks28 decks
2%synergy
Paradise Mantle
7.1%inclusion2 decks28 decks
7%synergy
Bender's Waterskin
5.3%inclusion1 decks19 decks
4%synergy
Lands
Command Tower
96%inclusion27 decks28 decks
4%synergy
Plains
93%inclusion26 decks28 decks
-2%synergy
Swamp
89%inclusion25 decks28 decks
-6%synergy
Mountain
86%inclusion24 decks28 decks
-8%synergy
Caves of Koilos
75%inclusion21 decks28 decks
36%synergy
Battlefield Forge
75%inclusion21 decks28 decks
35%synergy
Godless Shrine
68%inclusion19 decks28 decks
21%synergy
Dragonskull Summit
64%inclusion18 decks28 decks
12%synergy
Sacred Foundry
61%inclusion17 decks28 decks
16%synergy
Nomad Outpost
61%inclusion17 decks28 decks
2%synergy
Sulfurous Springs
61%inclusion17 decks28 decks
33%synergy
Savai Triome
57%inclusion16 decks28 decks
19%synergy
Exotic Orchard
57%inclusion16 decks28 decks
5%synergy
Isolated Chapel
57%inclusion16 decks28 decks
4%synergy
Blood Crypt
50%inclusion14 decks28 decks
6%synergy
Clifftop Retreat
50%inclusion14 decks28 decks
-1%synergy
Luxury Suite
46%inclusion13 decks28 decks
15%synergy
Spectator Seating
46%inclusion13 decks28 decks
15%synergy
Haunted Ridge
46%inclusion13 decks28 decks
26%synergy
Vault of Champions
46%inclusion13 decks28 decks
13%synergy
Sundown Pass
43%inclusion12 decks28 decks
22%synergy
Shattered Sanctum
43%inclusion12 decks28 decks
19%synergy
Forbidden Orchard
43%inclusion12 decks28 decks
40%synergy
Marsh Flats
43%inclusion12 decks28 decks
11%synergy
Bloodstained Mire
39%inclusion11 decks28 decks
7%synergy
Fetid Heath
36%inclusion10 decks28 decks
15%synergy
Rugged Prairie
36%inclusion10 decks28 decks
19%synergy
Graven Cairns
32%inclusion9 decks28 decks
21%synergy
Smoldering Marsh
29%inclusion8 decks28 decks
-8%synergy
Plaza of Heroes
29%inclusion8 decks28 decks
24%synergy
Arid Mesa
29%inclusion8 decks28 decks
-3%synergy
Tainted Field
21%inclusion6 decks28 decks
9%synergy
Needleverge Pathway
21%inclusion6 decks28 decks
13%synergy
Path of Ancestry
21%inclusion6 decks28 decks
-16%synergy
Badlands
18%inclusion5 decks28 decks
6%synergy
Foreboding Ruins
18%inclusion5 decks28 decks
7%synergy
Plateau
18%inclusion5 decks28 decks
6%synergy
Scrubland
18%inclusion5 decks28 decks
6%synergy
Shineshadow Snarl
18%inclusion5 decks28 decks
8%synergy
Mana Confluence
18%inclusion5 decks28 decks
9%synergy
Shadowblood Ridge
14%inclusion4 decks28 decks
-1%synergy
Brightclimb Pathway
14%inclusion4 decks28 decks
5%synergy
Temple of Malice
14%inclusion4 decks28 decks
-3%synergy
Shattered Landscape
14%inclusion4 decks28 decks
-5%synergy
Orzhov Basilica
14%inclusion4 decks28 decks
0%synergy
Blightstep Pathway
14%inclusion4 decks28 decks
6%synergy
Temple of Silence
14%inclusion4 decks28 decks
-9%synergy
City of Brass
14%inclusion4 decks28 decks
4%synergy
Silent Clearing
14%inclusion4 decks28 decks
11%synergy
Valakut Awakening
14%inclusion4 decks28 decks
11%synergy