Altaïr, Brotherhood Mentor (Commander) - Expensive Core

Original Name:

Kelsien, the PlagueKelsien, the Plague

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
Stensian Sanguinist
33%inclusion2 decks6 decks
32%synergy
Decorum Dissertation
33%inclusion2 decks6 decks
32%synergy
Improvisation Capstone
17%inclusion1 decks6 decks
16%synergy
Restoration Seminar
17%inclusion1 decks6 decks
16%synergy
Erode
17%inclusion1 decks6 decks
15%synergy
High Synergy Cards
Basilisk Collar
96%inclusion71 decks74 decks
92%synergy
Drumbellower
77%inclusion57 decks74 decks
75%synergy
Otharri, Suns' Glory
80%inclusion59 decks74 decks
74%synergy
Mari, the Killing Quill
80%inclusion59 decks74 decks
73%synergy
Vorpal Sword
73%inclusion54 decks74 decks
71%synergy
Rune of Mortality
70%inclusion52 decks74 decks
69%synergy
Gorgon's Head
68%inclusion50 decks74 decks
66%synergy
Thornbite Staff
68%inclusion50 decks74 decks
66%synergy
Minthara, Merciless Soul
68%inclusion50 decks74 decks
66%synergy
Sting, the Glinting Dagger
62%inclusion46 decks74 decks
60%synergy
Top Cards
Morbid Opportunist
76%inclusion56 decks74 decks
57%synergy
Shadowspear
64%inclusion47 decks74 decks
59%synergy
Falthis, Shadowcat Familiar
61%inclusion45 decks74 decks
60%synergy
Shay Cormac
61%inclusion43 decks71 decks
58%synergy
Maha, Its Feathers Night
52%inclusion37 decks71 decks
51%synergy
White Plume Adventurer
50%inclusion37 decks74 decks
49%synergy
You Are Already Dead
49%inclusion36 decks74 decks
47%synergy
General's Enforcer
47%inclusion35 decks74 decks
39%synergy
Humble Defector
46%inclusion34 decks74 decks
44%synergy
Magewright's Stone
46%inclusion34 decks74 decks
45%synergy
Game Changers
Teferi's Protection
16%inclusion12 decks74 decks
-3%synergy
Orcish Bowmasters
14%inclusion10 decks74 decks
8%synergy
Farewell
12%inclusion9 decks74 decks
2%synergy
Creatures
Daxos the Returned
46%inclusion34 decks74 decks
45%synergy
Goblin Sharpshooter
45%inclusion33 decks74 decks
44%synergy
Mother of Runes
43%inclusion32 decks74 decks
36%synergy
Magda, the Hoardmaster
41%inclusion30 decks74 decks
38%synergy
Taii Wakeen, Perfect Shot
36%inclusion27 decks74 decks
36%synergy
Termination Facilitator
36%inclusion27 decks74 decks
35%synergy
Kalemne, Disciple of Iroas
35%inclusion26 decks74 decks
34%synergy
Esper Sentinel
31%inclusion23 decks74 decks
13%synergy
Puresteel Paladin
30%inclusion22 decks74 decks
26%synergy
Slaughter Specialist
30%inclusion22 decks74 decks
29%synergy
Stoneforge Mystic
28%inclusion21 decks74 decks
26%synergy
Mathas, Fiend Seeker
28%inclusion21 decks74 decks
26%synergy
Ertha Jo, Frontier Mentor
27%inclusion20 decks74 decks
26%synergy
Massacre Girl, Known Killer
27%inclusion20 decks74 decks
25%synergy
Lae'zel, Vlaakith's Champion
24%inclusion18 decks74 decks
22%synergy
Athreos, Shroud-Veiled
23%inclusion17 decks74 decks
22%synergy
Harvester of Souls
23%inclusion17 decks74 decks
20%synergy
Marvin, Murderous Mimic
23%inclusion15 decks66 decks
21%synergy
Giver of Runes
22%inclusion16 decks74 decks
19%synergy
Archetype of Finality
22%inclusion16 decks74 decks
21%synergy
Void Beckoner
20%inclusion15 decks74 decks
20%synergy
Akiri, Fearless Voyager
20%inclusion15 decks74 decks
18%synergy
Blood Cultist
19%inclusion14 decks74 decks
18%synergy
Cunning Sparkmage
18%inclusion13 decks74 decks
17%synergy
Sun Titan
18%inclusion13 decks74 decks
7%synergy
Kratos, Stoic Father
17%inclusion5 decks29 decks
17%synergy
Assault Intercessor
15%inclusion11 decks74 decks
14%synergy
Zagras, Thief of Heartbeats
15%inclusion11 decks74 decks
14%synergy
Bureau Headmaster
14%inclusion10 decks71 decks
13%synergy
Witch Enchanter
14%inclusion10 decks73 decks
7%synergy
Ankle Shanker
14%inclusion10 decks74 decks
10%synergy
Deathbringer Thoctar
14%inclusion10 decks74 decks
13%synergy
Queen Marchesa
12%inclusion9 decks74 decks
6%synergy
Clackbridge Troll
12%inclusion9 decks74 decks
12%synergy
Sram, Senior Edificer
11%inclusion8 decks74 decks
8%synergy
Royal Assassin
11%inclusion8 decks74 decks
8%synergy
Vulshok Sorcerer
11%inclusion8 decks74 decks
11%synergy
Ojer Axonil, Deepest Might
11%inclusion8 decks74 decks
11%synergy
Qarsi Revenant
10%inclusion4 decks41 decks
7%synergy
Weathered Wayfarer
9.5%inclusion7 decks74 decks
8%synergy
Robaran Mercenaries
9.5%inclusion7 decks74 decks
9%synergy
Tor Wauki the Younger
9.5%inclusion7 decks74 decks
9%synergy
Gisa, Glorious Resurrector
9.5%inclusion7 decks74 decks
9%synergy
Codsworth, Handy Helper
9.5%inclusion7 decks74 decks
9%synergy
Aang, Airbending Master
8.8%inclusion3 decks34 decks
8%synergy
Rev, Tithe Extractor
8.3%inclusion5 decks60 decks
6%synergy
Cloud, Midgar Mercenary
8.3%inclusion3 decks36 decks
7%synergy
Metastatic Evangel
8.2%inclusion6 decks73 decks
8%synergy
Boggart Trawler
8.2%inclusion6 decks73 decks
6%synergy
Blood Artist
8.1%inclusion6 decks74 decks
-10%synergy
Instants
Anguished Unmaking
45%inclusion33 decks74 decks
11%synergy
Swords to Plowshares
43%inclusion32 decks74 decks
-19%synergy
Boros Charm
38%inclusion28 decks74 decks
9%synergy
Mirrodin Avenged
35%inclusion26 decks74 decks
34%synergy
Stroke of Midnight
31%inclusion23 decks74 decks
19%synergy
Path to Exile
27%inclusion20 decks74 decks
-20%synergy
Generous Gift
26%inclusion19 decks74 decks
8%synergy
Flawless Maneuver
24%inclusion18 decks74 decks
10%synergy
Fracture
24%inclusion18 decks74 decks
18%synergy
Malakir Rebirth
23%inclusion17 decks74 decks
18%synergy
Crackling Doom
23%inclusion17 decks74 decks
6%synergy
Deflecting Swat
23%inclusion17 decks74 decks
7%synergy
Despark
23%inclusion17 decks74 decks
9%synergy
Wear // Tear
18%inclusion13 decks74 decks
6%synergy
Dawn's Truce
14%inclusion10 decks71 decks
7%synergy
Fell the Profane
14%inclusion10 decks73 decks
7%synergy
Chaos Warp
14%inclusion10 decks74 decks
-2%synergy
Offer Immortality
14%inclusion10 decks74 decks
13%synergy
Bladebrand
12%inclusion9 decks74 decks
12%synergy
Redirect Lightning
12%inclusion4 decks34 decks
6%synergy
Rakdos Charm
11%inclusion8 decks74 decks
2%synergy
Bedevil
11%inclusion8 decks74 decks
4%synergy
Terminate
9.5%inclusion7 decks74 decks
-3%synergy
Swift Demise
9.1%inclusion1 decks11 decks
9%synergy
Bolt Bend
8.1%inclusion6 decks74 decks
6%synergy
Volt Charge
8.1%inclusion6 decks74 decks
8%synergy
Deflecting Palm
8.1%inclusion6 decks74 decks
2%synergy
Valakut Awakening
8.1%inclusion6 decks74 decks
5%synergy
Mortify
8.1%inclusion6 decks74 decks
-7%synergy
Untimely Malfunction
7.6%inclusion5 decks66 decks
3%synergy
Clever Concealment
6.8%inclusion5 decks74 decks
3%synergy
Tibalt's Trickery
6.8%inclusion5 decks74 decks
3%synergy
Virulent Swipe
6.8%inclusion5 decks74 decks
7%synergy
Sejiri Shelter
6.8%inclusion5 decks74 decks
5%synergy
Restoration Magic
5.6%inclusion2 decks36 decks
3%synergy
Legion Leadership
5.5%inclusion4 decks73 decks
1%synergy
Fire Covenant
5.4%inclusion4 decks74 decks
4%synergy
Deadly Rollick
5.4%inclusion4 decks74 decks
-6%synergy
Final Showdown
5.4%inclusion4 decks74 decks
3%synergy
Tainted Strike
5.4%inclusion4 decks74 decks
5%synergy
Disenchant
5.4%inclusion4 decks74 decks
4%synergy
Utter End
5.4%inclusion4 decks74 decks
1%synergy
Touch of Moonglove
5.4%inclusion4 decks74 decks
5%synergy
Galadriel's Dismissal
5.4%inclusion4 decks74 decks
4%synergy
Akroma's Will
5.4%inclusion4 decks74 decks
-8%synergy
Big Score
5.4%inclusion4 decks74 decks
-5%synergy
Sorceries
Ruinous Ultimatum
46%inclusion34 decks74 decks
7%synergy
Open the Armory
35%inclusion26 decks74 decks
31%synergy
Vandalblast
28%inclusion21 decks74 decks
18%synergy
Blasphemous Act
28%inclusion21 decks74 decks
6%synergy
Night's Whisper
27%inclusion20 decks74 decks
14%synergy
Mythos of Snapdax
26%inclusion19 decks74 decks
20%synergy
Call of the Death-Dweller
26%inclusion19 decks74 decks
25%synergy
Steelshaper's Gift
24%inclusion18 decks74 decks
21%synergy
Painful Truths
23%inclusion17 decks74 decks
15%synergy
Sign in Blood
20%inclusion15 decks74 decks
12%synergy
Read the Bones
19%inclusion14 decks74 decks
10%synergy
Sevinne's Reclamation
16%inclusion12 decks74 decks
8%synergy
Vindicate
16%inclusion12 decks74 decks
10%synergy
Toxic Deluge
15%inclusion11 decks74 decks
7%synergy
Chandra's Ignition
14%inclusion10 decks74 decks
12%synergy
Faithless Looting
12%inclusion9 decks74 decks
-3%synergy
Damn
12%inclusion9 decks74 decks
-6%synergy
Drown in Ichor
11%inclusion8 decks74 decks
10%synergy
Single Combat
9.5%inclusion7 decks74 decks
8%synergy
Reanimate
9.5%inclusion7 decks74 decks
-8%synergy
Divine Reckoning
6.8%inclusion5 decks74 decks
6%synergy
Unearth
6.8%inclusion5 decks74 decks
4%synergy
Unfinished Business
6.8%inclusion5 decks74 decks
6%synergy
Rip Apart
6.8%inclusion5 decks74 decks
6%synergy
Tempt with Bunnies
5.6%inclusion4 decks71 decks
5%synergy
Feed the Swarm
5.4%inclusion4 decks74 decks
0%synergy
Utility Artifacts
Swiftfoot Boots
42%inclusion31 decks74 decks
10%synergy
Illusionist's Bracers
41%inclusion30 decks74 decks
39%synergy
Gorgon Flail
41%inclusion30 decks74 decks
40%synergy
Thousand-Year Elixir
35%inclusion26 decks74 decks
34%synergy
Quietus Spike
31%inclusion23 decks74 decks
30%synergy
Mithril Coat
31%inclusion23 decks74 decks
26%synergy
Glaring Spotlight
19%inclusion14 decks74 decks
19%synergy
Hunter's Blowgun
19%inclusion14 decks74 decks
18%synergy
Wayfarer's Bauble
16%inclusion12 decks74 decks
8%synergy
Battlemage's Bracers
16%inclusion12 decks74 decks
16%synergy
Lightning Greaves
16%inclusion12 decks74 decks
-18%synergy
Sword of Truth and Justice
15%inclusion11 decks74 decks
14%synergy
Brotherhood Regalia
13%inclusion9 decks71 decks
9%synergy
Halo Fountain
12%inclusion9 decks74 decks
12%synergy
Sword of the Animist
12%inclusion9 decks74 decks
3%synergy
Robe of Stars
11%inclusion8 decks74 decks
10%synergy
Whispersilk Cloak
9.5%inclusion7 decks74 decks
4%synergy
Scythe of the Wretched
9.5%inclusion7 decks74 decks
9%synergy
The Masamune
8.3%inclusion3 decks36 decks
8%synergy
Nazgûl Battle-Mace
8.1%inclusion6 decks74 decks
8%synergy
Haystack
8.1%inclusion6 decks74 decks
7%synergy
Hammer of Nazahn
8.1%inclusion6 decks74 decks
6%synergy
Hidden Blade
6.8%inclusion5 decks74 decks
6%synergy
Helm of the Host
6.8%inclusion5 decks74 decks
1%synergy
Sword of Hearth and Home
6.8%inclusion5 decks74 decks
4%synergy
Mask of Griselbrand
6.8%inclusion5 decks74 decks
6%synergy
Tome of Legends
6.8%inclusion5 decks74 decks
6%synergy
Sword of Feast and Famine
6.8%inclusion5 decks74 decks
3%synergy
The Seriema
5.7%inclusion2 decks35 decks
5%synergy
Chainsaw
5.6%inclusion4 decks71 decks
5%synergy
Genji Glove
5.6%inclusion2 decks36 decks
4%synergy
Umbral Mantle
5.4%inclusion4 decks74 decks
5%synergy
Embercleave
5.4%inclusion4 decks74 decks
2%synergy
Mask of Memory
5.4%inclusion4 decks74 decks
4%synergy
Enchantments
Gift of Doom
43%inclusion32 decks74 decks
42%synergy
Fighter Class
41%inclusion30 decks74 decks
38%synergy
Black Market Connections
38%inclusion28 decks74 decks
22%synergy
Phyrexian Arena
35%inclusion26 decks74 decks
16%synergy
All-Out Assault
34%inclusion14 decks41 decks
22%synergy
Revel in Riches
28%inclusion21 decks74 decks
22%synergy
Reconnaissance
26%inclusion19 decks74 decks
14%synergy
Dazzling Theater // Prop Room
25%inclusion16 decks65 decks
23%synergy
At Knifepoint
24%inclusion18 decks74 decks
23%synergy
Sigarda's Aid
20%inclusion15 decks74 decks
17%synergy
Agent of the Shadow Thieves
20%inclusion15 decks74 decks
20%synergy
Black Market
18%inclusion13 decks74 decks
12%synergy
Aspect of Gorgon
18%inclusion13 decks74 decks
17%synergy
Forge Anew
18%inclusion13 decks74 decks
15%synergy
Death Pits of Rath
14%inclusion10 decks74 decks
13%synergy
Land Tax
12%inclusion9 decks74 decks
6%synergy
Gift of Immortality
11%inclusion8 decks74 decks
10%synergy
Retreat to Hagra
11%inclusion8 decks74 decks
11%synergy
Spiteful Banditry
11%inclusion8 decks74 decks
9%synergy
Trouble in Pairs
9.5%inclusion7 decks74 decks
4%synergy
Grave Betrayal
8.1%inclusion6 decks74 decks
8%synergy
Glasswing Grace
5.5%inclusion4 decks73 decks
4%synergy
Ghoulish Impetus
5.4%inclusion4 decks74 decks
4%synergy
Life Insurance
5.4%inclusion4 decks74 decks
3%synergy
Phyrexian Reclamation
5.4%inclusion4 decks74 decks
3%synergy
Eternal Thirst
5.4%inclusion4 decks74 decks
5%synergy
Kaya's Ghostform
5.4%inclusion4 decks74 decks
3%synergy
Planeswalkers
Kaya, Geist Hunter
12%inclusion9 decks74 decks
8%synergy
Vraska, Betrayal's Sting
11%inclusion8 decks74 decks
10%synergy
Utility Lands
Vault of the Archangel
59%inclusion44 decks74 decks
37%synergy
Arcane Lighthouse
46%inclusion34 decks74 decks
45%synergy
Rogue's Passage
45%inclusion33 decks74 decks
21%synergy
Bojuka Bog
36%inclusion27 decks74 decks
5%synergy
Urborg, Tomb of Yawgmoth
32%inclusion24 decks74 decks
19%synergy
Detection Tower
30%inclusion22 decks74 decks
29%synergy
Shizo, Death's Storehouse
28%inclusion21 decks74 decks
21%synergy
Karn's Bastion
24%inclusion18 decks74 decks
23%synergy
Eiganjo, Seat of the Empire
19%inclusion14 decks74 decks
12%synergy
Urza's Saga
18%inclusion13 decks74 decks
13%synergy
Reliquary Tower
18%inclusion13 decks74 decks
2%synergy
Axgard Armory
14%inclusion10 decks74 decks
12%synergy
Maze of Ith
9.5%inclusion7 decks74 decks
6%synergy
Command Beacon
8.1%inclusion6 decks74 decks
3%synergy
Sunhome, Fortress of the Legion
8.1%inclusion6 decks74 decks
5%synergy
Takenuma, Abandoned Mire
8.1%inclusion6 decks74 decks
1%synergy
Hall of Heliod's Generosity
6.8%inclusion5 decks74 decks
5%synergy
Cabal Coffers
5.4%inclusion4 decks74 decks
2%synergy
Mana Artifacts
Arcane Signet
86%inclusion64 decks74 decks
1%synergy
Sol Ring
84%inclusion62 decks74 decks
-5%synergy
Patriar's Seal
69%inclusion51 decks74 decks
67%synergy
Talisman of Hierarchy
47%inclusion35 decks74 decks
6%synergy
Talisman of Indulgence
43%inclusion32 decks74 decks
6%synergy
Talisman of Conviction
42%inclusion31 decks74 decks
0%synergy
Rakdos Signet
35%inclusion26 decks74 decks
6%synergy
Orzhov Signet
35%inclusion26 decks74 decks
4%synergy
Boros Signet
28%inclusion21 decks74 decks
1%synergy
Fellwar Stone
24%inclusion18 decks74 decks
-4%synergy
Bandit's Haul
20%inclusion15 decks74 decks
19%synergy
Bounty Board
20%inclusion15 decks74 decks
18%synergy
Chromatic Lantern
14%inclusion10 decks74 decks
3%synergy
The Soul Stone
12%inclusion4 decks34 decks
9%synergy
Commander's Sphere
8.1%inclusion6 decks74 decks
-6%synergy
Staff of Compleation
8.1%inclusion6 decks74 decks
8%synergy
Mind Stone
8.1%inclusion6 decks74 decks
0%synergy
Aetheric Amplifier
7.8%inclusion4 decks51 decks
8%synergy
Mardu Banner
5.4%inclusion4 decks74 decks
2%synergy
Savai Crystal
5.4%inclusion4 decks74 decks
4%synergy
Lands
Command Tower
95%inclusion70 decks74 decks
2%synergy
Plains
95%inclusion70 decks74 decks
-1%synergy
Swamp
93%inclusion69 decks74 decks
-2%synergy
Blood Crypt
92%inclusion68 decks74 decks
48%synergy
Mountain
92%inclusion68 decks74 decks
-2%synergy
Godless Shrine
91%inclusion67 decks74 decks
43%synergy
Sacred Foundry
89%inclusion66 decks74 decks
44%synergy
Vault of Champions
85%inclusion63 decks74 decks
53%synergy
Savai Triome
84%inclusion62 decks74 decks
46%synergy
Luxury Suite
81%inclusion60 decks74 decks
50%synergy
Spectator Seating
80%inclusion59 decks74 decks
49%synergy
Marsh Flats
72%inclusion53 decks74 decks
40%synergy
Arid Mesa
68%inclusion50 decks74 decks
36%synergy
Forbidden Orchard
65%inclusion48 decks74 decks
62%synergy
Bloodstained Mire
64%inclusion47 decks74 decks
31%synergy
Exotic Orchard
59%inclusion44 decks74 decks
7%synergy
Sundown Pass
47%inclusion35 decks74 decks
27%synergy
Nomad Outpost
45%inclusion33 decks74 decks
-14%synergy
Haunted Ridge
43%inclusion32 decks74 decks
23%synergy
Caves of Koilos
42%inclusion31 decks74 decks
3%synergy
Shattered Sanctum
42%inclusion31 decks74 decks
18%synergy
Battlefield Forge
41%inclusion30 decks74 decks
0%synergy
Plateau
39%inclusion29 decks74 decks
27%synergy
Badlands
38%inclusion28 decks74 decks
26%synergy
Isolated Chapel
35%inclusion26 decks74 decks
-18%synergy
Scrubland
35%inclusion26 decks74 decks
23%synergy
Dragonskull Summit
31%inclusion23 decks74 decks
-21%synergy
Sulfurous Springs
31%inclusion23 decks74 decks
3%synergy
Clifftop Retreat
30%inclusion22 decks74 decks
-21%synergy
Brightclimb Pathway
23%inclusion17 decks74 decks
14%synergy
Malakir Rebirth
23%inclusion17 decks74 decks
18%synergy
Needleverge Pathway
20%inclusion15 decks74 decks
12%synergy
Shadowy Backstreet
19%inclusion14 decks74 decks
9%synergy
Raucous Theater
18%inclusion13 decks74 decks
8%synergy
Rugged Prairie
18%inclusion13 decks74 decks
0%synergy
Reflecting Pool
18%inclusion13 decks74 decks
10%synergy
Blightstep Pathway
18%inclusion13 decks74 decks
10%synergy
Fetid Heath
16%inclusion12 decks74 decks
-5%synergy
Plaza of Heroes
16%inclusion12 decks74 decks
12%synergy
Path of Ancestry
16%inclusion12 decks74 decks
-22%synergy
Elegant Parlor
15%inclusion11 decks74 decks
5%synergy
Fell the Profane
14%inclusion10 decks73 decks
7%synergy
Witch Enchanter
14%inclusion10 decks73 decks
7%synergy
Prismatic Vista
14%inclusion10 decks74 decks
10%synergy
City of Brass
14%inclusion10 decks74 decks
3%synergy
Mana Confluence
12%inclusion9 decks74 decks
3%synergy
Blazemire Verge
12%inclusion8 decks66 decks
0%synergy
Verdant Catacombs
11%inclusion8 decks74 decks
4%synergy
Smoldering Marsh
11%inclusion8 decks74 decks
-26%synergy
Orzhov Basilica
11%inclusion8 decks74 decks
-3%synergy