Altaïr, Brotherhood Mentor (Commander) - 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
Decorum Dissertation
11%inclusion4 decks38 decks
9%synergy
Emeritus of Woe
7.9%inclusion3 decks38 decks
3%synergy
Stensian Sanguinist
7.0%inclusion3 decks43 decks
5%synergy
Harsh Annotation
5.3%inclusion2 decks38 decks
5%synergy
Restoration Seminar
4.9%inclusion2 decks41 decks
4%synergy
High Synergy Cards
Basilisk Collar
84%inclusion614 decks734 decks
79%synergy
Minthara, Merciless Soul
78%inclusion573 decks734 decks
76%synergy
Rune of Mortality
73%inclusion537 decks734 decks
72%synergy
Otharri, Suns' Glory
77%inclusion566 decks734 decks
72%synergy
Vorpal Sword
65%inclusion477 decks734 decks
63%synergy
Falthis, Shadowcat Familiar
62%inclusion456 decks734 decks
61%synergy
Gorgon's Head
61%inclusion451 decks734 decks
60%synergy
You Are Already Dead
61%inclusion446 decks734 decks
59%synergy
Sting, the Glinting Dagger
60%inclusion443 decks734 decks
59%synergy
Mari, the Killing Quill
65%inclusion476 decks734 decks
58%synergy
Top Cards
Morbid Opportunist
73%inclusion538 decks734 decks
55%synergy
General's Enforcer
56%inclusion413 decks734 decks
48%synergy
Shay Cormac
56%inclusion388 decks692 decks
53%synergy
Drumbellower
56%inclusion409 decks734 decks
54%synergy
Swiftfoot Boots
54%inclusion400 decks734 decks
23%synergy
Humble Defector
47%inclusion347 decks734 decks
45%synergy
Termination Facilitator
47%inclusion346 decks734 decks
45%synergy
Mirrodin Avenged
46%inclusion341 decks734 decks
46%synergy
Kalemne, Disciple of Iroas
46%inclusion336 decks734 decks
45%synergy
Gift of Doom
46%inclusion334 decks734 decks
45%synergy
Game Changers
Farewell
5.0%inclusion37 decks734 decks
-5%synergy
Creatures
Mathas, Fiend Seeker
44%inclusion323 decks734 decks
42%synergy
Lae'zel, Vlaakith's Champion
43%inclusion315 decks734 decks
41%synergy
Slaughter Specialist
43%inclusion313 decks734 decks
42%synergy
Taii Wakeen, Perfect Shot
41%inclusion304 decks734 decks
41%synergy
Magda, the Hoardmaster
41%inclusion301 decks734 decks
39%synergy
Daxos the Returned
41%inclusion299 decks734 decks
40%synergy
Harvester of Souls
39%inclusion289 decks734 decks
36%synergy
White Plume Adventurer
37%inclusion274 decks734 decks
36%synergy
Void Beckoner
36%inclusion263 decks734 decks
35%synergy
Archetype of Finality
34%inclusion253 decks734 decks
34%synergy
Ertha Jo, Frontier Mentor
33%inclusion242 decks734 decks
32%synergy
Maha, Its Feathers Night
32%inclusion213 decks666 decks
31%synergy
Blood Cultist
31%inclusion228 decks734 decks
31%synergy
Zagras, Thief of Heartbeats
28%inclusion202 decks734 decks
27%synergy
Ankle Shanker
25%inclusion187 decks734 decks
22%synergy
Sun Titan
25%inclusion186 decks734 decks
15%synergy
Mother of Runes
25%inclusion180 decks734 decks
17%synergy
Athreos, Shroud-Veiled
22%inclusion161 decks734 decks
21%synergy
Goblin Sharpshooter
22%inclusion158 decks734 decks
21%synergy
Assault Intercessor
21%inclusion157 decks734 decks
21%synergy
Queen Marchesa
21%inclusion152 decks734 decks
15%synergy
Clackbridge Troll
20%inclusion149 decks734 decks
20%synergy
Marvin, Murderous Mimic
20%inclusion124 decks611 decks
19%synergy
Cunning Sparkmage
20%inclusion147 decks734 decks
20%synergy
Deathbringer Thoctar
18%inclusion135 decks734 decks
18%synergy
Tor Wauki the Younger
18%inclusion132 decks734 decks
18%synergy
Akiri, Fearless Voyager
18%inclusion131 decks734 decks
16%synergy
Vulshok Sorcerer
17%inclusion125 decks734 decks
17%synergy
Solemn Simulacrum
16%inclusion114 decks734 decks
3%synergy
Robaran Mercenaries
16%inclusion114 decks734 decks
15%synergy
Puresteel Paladin
15%inclusion112 decks734 decks
11%synergy
Massacre Girl, Known Killer
14%inclusion105 decks734 decks
12%synergy
Grateful Apparition
14%inclusion103 decks734 decks
14%synergy
Royal Assassin
14%inclusion101 decks734 decks
11%synergy
Torbran, Thane of Red Fell
13%inclusion98 decks734 decks
13%synergy
Kratos, Stoic Father
12%inclusion26 decks211 decks
12%synergy
Rakdos Ickspitter
11%inclusion84 decks734 decks
11%synergy
Onyx Mage
11%inclusion82 decks734 decks
11%synergy
Aang, Airbending Master
11%inclusion26 decks238 decks
10%synergy
Blood Artist
10%inclusion77 decks734 decks
-8%synergy
Gisa, Glorious Resurrector
10%inclusion74 decks734 decks
9%synergy
Azula, Ruthless Firebender
10%inclusion18 decks185 decks
9%synergy
Jirina, Dauntless General
10%inclusion70 decks734 decks
7%synergy
Bureau Headmaster
9.0%inclusion62 decks688 decks
8%synergy
Sram, Senior Edificer
8.6%inclusion63 decks734 decks
6%synergy
Norn's Choirmaster
8.2%inclusion60 decks734 decks
8%synergy
Prodigal Pyromancer
7.9%inclusion58 decks734 decks
8%synergy
Esper Sentinel
7.8%inclusion57 decks734 decks
-10%synergy
Zuko, Firebending Master
7.6%inclusion14 decks184 decks
6%synergy
Akroan Horse
7.5%inclusion55 decks734 decks
7%synergy
Instants
Crackling Doom
45%inclusion330 decks734 decks
28%synergy
Swords to Plowshares
43%inclusion319 decks734 decks
-18%synergy
Boros Charm
38%inclusion280 decks734 decks
9%synergy
Stroke of Midnight
35%inclusion254 decks734 decks
23%synergy
Fracture
32%inclusion232 decks734 decks
26%synergy
Despark
30%inclusion218 decks734 decks
16%synergy
Offer Immortality
28%inclusion206 decks734 decks
27%synergy
Generous Gift
27%inclusion201 decks734 decks
9%synergy
Path to Exile
25%inclusion186 decks734 decks
-21%synergy
Bladebrand
25%inclusion185 decks734 decks
25%synergy
Anguished Unmaking
25%inclusion181 decks734 decks
-9%synergy
Terminate
20%inclusion146 decks734 decks
7%synergy
Mortify
20%inclusion144 decks734 decks
4%synergy
Dire Tactics
18%inclusion133 decks734 decks
15%synergy
Chaos Warp
15%inclusion109 decks734 decks
-1%synergy
Virulent Swipe
12%inclusion90 decks734 decks
12%synergy
Rakdos Charm
12%inclusion90 decks734 decks
3%synergy
Wear // Tear
12%inclusion87 decks734 decks
0%synergy
Flawless Maneuver
12%inclusion86 decks734 decks
-3%synergy
Battle-Rage Blessing
11%inclusion80 decks734 decks
11%synergy
Tragic Slip
10%inclusion75 decks734 decks
9%synergy
Thrill of Possibility
10%inclusion70 decks734 decks
2%synergy
Toxin Analysis
10%inclusion70 decks734 decks
9%synergy
Malakir Rebirth
9.4%inclusion69 decks734 decks
4%synergy
Bedevil
9.4%inclusion69 decks734 decks
2%synergy
Volt Charge
9.1%inclusion67 decks734 decks
9%synergy
Deflecting Palm
9.1%inclusion67 decks734 decks
3%synergy
Dawn's Truce
9.0%inclusion60 decks665 decks
2%synergy
Whisper of the Dross
8.6%inclusion63 decks734 decks
8%synergy
Sejiri Shelter
7.9%inclusion58 decks734 decks
6%synergy
Legion Leadership
7.8%inclusion56 decks718 decks
3%synergy
Touch of Moonglove
7.6%inclusion56 decks734 decks
8%synergy
Swift Demise
7.4%inclusion7 decks94 decks
7%synergy
Untimely Malfunction
7.0%inclusion43 decks618 decks
2%synergy
Utter End
6.5%inclusion48 decks734 decks
2%synergy
Alchemist's Gift
5.4%inclusion40 decks734 decks
5%synergy
Inevitable Defeat
5.2%inclusion21 decks401 decks
0%synergy
Sorceries
Open the Armory
42%inclusion310 decks734 decks
38%synergy
Ruinous Ultimatum
41%inclusion301 decks734 decks
2%synergy
Mythos of Snapdax
37%inclusion270 decks734 decks
31%synergy
Painful Truths
35%inclusion259 decks734 decks
27%synergy
Read the Bones
31%inclusion224 decks734 decks
22%synergy
Call of the Death-Dweller
27%inclusion195 decks734 decks
26%synergy
Night's Whisper
24%inclusion174 decks734 decks
11%synergy
Sign in Blood
21%inclusion156 decks734 decks
13%synergy
Drown in Ichor
21%inclusion151 decks734 decks
20%synergy
Blasphemous Act
18%inclusion130 decks734 decks
-5%synergy
Vandalblast
17%inclusion125 decks734 decks
7%synergy
Steelshaper's Gift
14%inclusion105 decks734 decks
11%synergy
Sevinne's Reclamation
13%inclusion97 decks734 decks
5%synergy
Vindicate
12%inclusion91 decks734 decks
6%synergy
Damn
12%inclusion88 decks734 decks
-6%synergy
Unfinished Business
11%inclusion80 decks734 decks
10%synergy
Single Combat
11%inclusion80 decks734 decks
9%synergy
Chandra's Ignition
10%inclusion77 decks734 decks
8%synergy
Austere Command
10%inclusion72 decks734 decks
3%synergy
Unearth
10%inclusion71 decks734 decks
7%synergy
Vat Emergence
9.1%inclusion67 decks734 decks
9%synergy
Faithless Looting
8.9%inclusion65 decks734 decks
-7%synergy
Feed the Swarm
8.9%inclusion65 decks734 decks
4%synergy
Rip Apart
7.5%inclusion55 decks734 decks
6%synergy
Ambition's Cost
5.9%inclusion43 decks734 decks
4%synergy
Divine Reckoning
5.3%inclusion39 decks734 decks
5%synergy
Tempt with Bunnies
5.0%inclusion33 decks659 decks
4%synergy
Utility Artifacts
Thornbite Staff
44%inclusion321 decks734 decks
42%synergy
Gorgon Flail
44%inclusion320 decks734 decks
43%synergy
Quietus Spike
42%inclusion308 decks734 decks
41%synergy
Magewright's Stone
33%inclusion241 decks734 decks
32%synergy
Hunter's Blowgun
32%inclusion233 decks734 decks
31%synergy
Illusionist's Bracers
28%inclusion202 decks734 decks
26%synergy
Shadowspear
26%inclusion189 decks734 decks
21%synergy
Thousand-Year Elixir
25%inclusion184 decks734 decks
24%synergy
Glaring Spotlight
17%inclusion126 decks734 decks
17%synergy
Wayfarer's Bauble
16%inclusion114 decks734 decks
7%synergy
Battlemage's Bracers
15%inclusion113 decks734 decks
15%synergy
Lightning Greaves
15%inclusion108 decks734 decks
-20%synergy
Puppet Strings
12%inclusion89 decks734 decks
12%synergy
Whispersilk Cloak
11%inclusion84 decks734 decks
6%synergy
Mithril Coat
11%inclusion81 decks734 decks
6%synergy
Brotherhood Regalia
11%inclusion73 decks691 decks
7%synergy
Hidden Blade
10%inclusion73 decks734 decks
9%synergy
Mask of Griselbrand
8.9%inclusion65 decks734 decks
8%synergy
Sword of the Animist
7.4%inclusion54 decks734 decks
-2%synergy
Reaper's Talisman
7.1%inclusion52 decks734 decks
7%synergy
Loxodon Warhammer
6.8%inclusion50 decks734 decks
4%synergy
Dragonfire Blade
6.1%inclusion22 decks359 decks
5%synergy
Sword of Truth and Justice
5.6%inclusion41 decks734 decks
5%synergy
Robe of Stars
5.4%inclusion40 decks734 decks
5%synergy
Haystack
5.4%inclusion40 decks734 decks
4%synergy
Halo Fountain
5.3%inclusion39 decks734 decks
5%synergy
Enchantments
Dazzling Theater // Prop Room
30%inclusion182 decks607 decks
28%synergy
Aspect of Gorgon
29%inclusion211 decks734 decks
28%synergy
Phyrexian Arena
28%inclusion204 decks734 decks
9%synergy
Fighter Class
26%inclusion194 decks734 decks
24%synergy
All-Out Assault
25%inclusion91 decks364 decks
13%synergy
At Knifepoint
23%inclusion167 decks734 decks
21%synergy
Retreat to Hagra
18%inclusion129 decks734 decks
17%synergy
Agent of the Shadow Thieves
16%inclusion118 decks734 decks
15%synergy
Reconnaissance
16%inclusion117 decks734 decks
4%synergy
Death Pits of Rath
15%inclusion111 decks734 decks
15%synergy
Black Market
14%inclusion106 decks734 decks
9%synergy
Revel in Riches
13%inclusion98 decks734 decks
7%synergy
Eternal Thirst
11%inclusion84 decks734 decks
11%synergy
Forge Anew
10%inclusion72 decks734 decks
8%synergy
Black Market Connections
9.3%inclusion68 decks734 decks
-6%synergy
Nowhere to Run
8.9%inclusion60 decks675 decks
8%synergy
Sigarda's Aid
8.3%inclusion61 decks734 decks
5%synergy
Kaya's Ghostform
7.8%inclusion57 decks734 decks
6%synergy
Grave Betrayal
7.4%inclusion54 decks734 decks
7%synergy
Glasswing Grace
6.5%inclusion47 decks720 decks
5%synergy
Gift of Immortality
5.7%inclusion42 decks734 decks
5%synergy
Feast of the Victorious Dead
5.7%inclusion42 decks734 decks
5%synergy
Life Insurance
5.0%inclusion37 decks734 decks
3%synergy
Planeswalkers
Kaya, Geist Hunter
8.7%inclusion64 decks734 decks
4%synergy
Vraska, Betrayal's Sting
7.8%inclusion57 decks734 decks
7%synergy
Dihada, Binder of Wills
7.1%inclusion52 decks734 decks
3%synergy
Utility Lands
Vault of the Archangel
55%inclusion404 decks734 decks
32%synergy
Rogue's Passage
53%inclusion391 decks734 decks
30%synergy
Bojuka Bog
37%inclusion274 decks734 decks
6%synergy
Arcane Lighthouse
29%inclusion213 decks734 decks
28%synergy
Detection Tower
25%inclusion184 decks734 decks
24%synergy
Karn's Bastion
24%inclusion179 decks734 decks
24%synergy
Axgard Armory
17%inclusion125 decks734 decks
15%synergy
Sunhome, Fortress of the Legion
11%inclusion79 decks734 decks
7%synergy
Buried Ruin
10%inclusion73 decks734 decks
7%synergy
Temple of the False God
8.0%inclusion59 decks734 decks
2%synergy
Reliquary Tower
7.9%inclusion58 decks734 decks
-7%synergy
Shizo, Death's Storehouse
5.9%inclusion43 decks734 decks
-1%synergy
Urborg, Tomb of Yawgmoth
5.6%inclusion41 decks734 decks
-8%synergy
Mana Artifacts
Arcane Signet
87%inclusion642 decks734 decks
2%synergy
Sol Ring
80%inclusion586 decks734 decks
-9%synergy
Patriar's Seal
59%inclusion431 decks734 decks
57%synergy
Orzhov Signet
52%inclusion379 decks734 decks
20%synergy
Rakdos Signet
48%inclusion351 decks734 decks
19%synergy
Boros Signet
43%inclusion319 decks734 decks
16%synergy
Talisman of Conviction
32%inclusion235 decks734 decks
-10%synergy
Talisman of Hierarchy
32%inclusion234 decks734 decks
-9%synergy
Talisman of Indulgence
25%inclusion187 decks734 decks
-11%synergy
Fellwar Stone
24%inclusion179 decks734 decks
-4%synergy
Bounty Board
24%inclusion175 decks734 decks
22%synergy
Commander's Sphere
21%inclusion151 decks734 decks
7%synergy
Bandit's Haul
13%inclusion94 decks734 decks
12%synergy
Aetheric Amplifier
11%inclusion49 decks448 decks
11%synergy
Chromatic Lantern
7.6%inclusion56 decks734 decks
-3%synergy
Mardu Banner
7.2%inclusion53 decks734 decks
4%synergy
Mind Stone
6.7%inclusion49 decks734 decks
-2%synergy
Savai Crystal
6.1%inclusion45 decks734 decks
5%synergy
Staff of Compleation
5.4%inclusion40 decks734 decks
5%synergy
Lands
Swamp
98%inclusion722 decks734 decks
3%synergy
Plains
98%inclusion722 decks734 decks
3%synergy
Mountain
98%inclusion718 decks734 decks
4%synergy
Command Tower
93%inclusion686 decks734 decks
1%synergy
Nomad Outpost
75%inclusion554 decks734 decks
17%synergy
Exotic Orchard
63%inclusion462 decks734 decks
11%synergy
Clifftop Retreat
51%inclusion372 decks734 decks
-1%synergy
Isolated Chapel
50%inclusion364 decks734 decks
-4%synergy
Dragonskull Summit
49%inclusion358 decks734 decks
-3%synergy
Caves of Koilos
43%inclusion317 decks734 decks
4%synergy
Smoldering Marsh
43%inclusion317 decks734 decks
7%synergy
Battlefield Forge
43%inclusion313 decks734 decks
2%synergy
Evolving Wilds
37%inclusion274 decks734 decks
11%synergy
Savai Triome
37%inclusion273 decks734 decks
-1%synergy
Forbidden Orchard
34%inclusion253 decks734 decks
32%synergy
Shattered Landscape
31%inclusion218 decks714 decks
12%synergy
Godless Shrine
30%inclusion222 decks734 decks
-17%synergy
Sacred Foundry
29%inclusion213 decks734 decks
-16%synergy
Blood Crypt
29%inclusion212 decks734 decks
-16%synergy
Vault of Champions
29%inclusion210 decks734 decks
-4%synergy
Temple of Silence
28%inclusion207 decks734 decks
6%synergy
Orzhov Basilica
28%inclusion203 decks734 decks
14%synergy
Path of Ancestry
28%inclusion203 decks734 decks
-10%synergy
Spectator Seating
27%inclusion196 decks734 decks
-4%synergy
Luxury Suite
26%inclusion193 decks734 decks
-5%synergy
Temple of Triumph
26%inclusion190 decks734 decks
4%synergy
Rakdos Carnarium
25%inclusion187 decks734 decks
14%synergy
Boros Garrison
25%inclusion183 decks734 decks
13%synergy
Terramorphic Expanse
25%inclusion181 decks734 decks
6%synergy
Sulfurous Springs
22%inclusion165 decks734 decks
-5%synergy
Temple of Malice
21%inclusion157 decks734 decks
5%synergy
Sundown Pass
21%inclusion152 decks734 decks
0%synergy
Shattered Sanctum
20%inclusion145 decks734 decks
-5%synergy
Myriad Landscape
19%inclusion141 decks734 decks
8%synergy
Haunted Ridge
19%inclusion139 decks734 decks
-1%synergy
Shadowblood Ridge
18%inclusion135 decks734 decks
3%synergy
Marsh Flats
16%inclusion118 decks734 decks
-15%synergy
Bloodstained Mire
15%inclusion113 decks734 decks
-17%synergy
Arid Mesa
15%inclusion113 decks734 decks
-16%synergy
Tainted Field
15%inclusion109 decks734 decks
3%synergy
Rugged Prairie
14%inclusion102 decks734 decks
-3%synergy
Fetid Heath
14%inclusion101 decks734 decks
-7%synergy
Foreboding Ruins
12%inclusion88 decks734 decks
1%synergy
Furycalm Snarl
10%inclusion76 decks734 decks
1%synergy
Shineshadow Snarl
10%inclusion72 decks734 decks
0%synergy
Bloodfell Caves
10%inclusion70 decks734 decks
1%synergy
Malakir Rebirth
9.4%inclusion69 decks734 decks
4%synergy
Scoured Barrens
9.3%inclusion68 decks734 decks
0%synergy
Wind-Scarred Crag
8.3%inclusion61 decks734 decks
0%synergy
Brightclimb Pathway
8.0%inclusion59 decks734 decks
-1%synergy