Kelsien, the Plague (Commander) - Upgraded

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

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
Emeritus of Woe
3.4%inclusion2 decks58 decks
-1%synergy
Emeritus of Truce
3.3%inclusion2 decks61 decks
2%synergy
Decorum Dissertation
3.2%inclusion2 decks63 decks
2%synergy
Turbulent Moor
2.8%inclusion2 decks71 decks
0%synergy
Eclipsed Steppe
2.8%inclusion2 decks71 decks
1%synergy
High Synergy Cards
Basilisk Collar
93%inclusion395 decks425 decks
89%synergy
Rune of Mortality
72%inclusion307 decks425 decks
71%synergy
Minthara, Merciless Soul
70%inclusion298 decks425 decks
69%synergy
Vorpal Sword
69%inclusion292 decks425 decks
66%synergy
Otharri, Suns' Glory
71%inclusion302 decks425 decks
66%synergy
Thornbite Staff
66%inclusion279 decks425 decks
64%synergy
Mari, the Killing Quill
70%inclusion298 decks425 decks
64%synergy
Sting, the Glinting Dagger
64%inclusion274 decks425 decks
63%synergy
Gorgon's Head
62%inclusion263 decks425 decks
61%synergy
Drumbellower
61%inclusion259 decks425 decks
59%synergy
Top Cards
Morbid Opportunist
71%inclusion303 decks425 decks
53%synergy
Swiftfoot Boots
60%inclusion255 decks425 decks
28%synergy
Shay Cormac
58%inclusion246 decks423 decks
55%synergy
Falthis, Shadowcat Familiar
58%inclusion245 decks425 decks
56%synergy
Open the Armory
56%inclusion240 decks425 decks
52%synergy
General's Enforcer
54%inclusion228 decks425 decks
46%synergy
Shadowspear
50%inclusion213 decks425 decks
46%synergy
Ruinous Ultimatum
50%inclusion211 decks425 decks
10%synergy
Gift of Doom
47%inclusion199 decks425 decks
46%synergy
Fighter Class
45%inclusion193 decks425 decks
43%synergy
Game Changers
Smothering Tithe
21%inclusion91 decks425 decks
-3%synergy
Teferi's Protection
21%inclusion88 decks425 decks
1%synergy
Enlightened Tutor
18%inclusion78 decks425 decks
6%synergy
Demonic Tutor
15%inclusion64 decks425 decks
-4%synergy
Orcish Bowmasters
9.4%inclusion40 decks425 decks
4%synergy
Farewell
8.9%inclusion38 decks425 decks
-1%synergy
Vampiric Tutor
6.8%inclusion29 decks425 decks
-7%synergy
Jeska's Will
5.4%inclusion23 decks425 decks
-4%synergy
Creatures
Lae'zel, Vlaakith's Champion
43%inclusion184 decks425 decks
41%synergy
Maha, Its Feathers Night
39%inclusion166 decks423 decks
38%synergy
Magda, the Hoardmaster
39%inclusion166 decks425 decks
37%synergy
Termination Facilitator
38%inclusion162 decks425 decks
36%synergy
White Plume Adventurer
38%inclusion161 decks425 decks
37%synergy
Humble Defector
37%inclusion158 decks425 decks
35%synergy
Mother of Runes
36%inclusion155 decks425 decks
29%synergy
Daxos the Returned
35%inclusion150 decks425 decks
35%synergy
Kalemne, Disciple of Iroas
33%inclusion141 decks425 decks
32%synergy
Stoneforge Mystic
33%inclusion140 decks425 decks
30%synergy
Slaughter Specialist
32%inclusion134 decks425 decks
31%synergy
Goblin Sharpshooter
31%inclusion133 decks425 decks
31%synergy
Taii Wakeen, Perfect Shot
31%inclusion131 decks425 decks
30%synergy
Harvester of Souls
30%inclusion128 decks425 decks
27%synergy
Mathas, Fiend Seeker
29%inclusion125 decks425 decks
27%synergy
Void Beckoner
29%inclusion124 decks425 decks
29%synergy
Puresteel Paladin
29%inclusion122 decks425 decks
25%synergy
Esper Sentinel
26%inclusion112 decks425 decks
8%synergy
Ertha Jo, Frontier Mentor
26%inclusion110 decks425 decks
25%synergy
Archetype of Finality
24%inclusion100 decks425 decks
23%synergy
Sun Titan
21%inclusion89 decks425 decks
10%synergy
Athreos, Shroud-Veiled
20%inclusion85 decks425 decks
19%synergy
Marvin, Murderous Mimic
18%inclusion76 decks419 decks
17%synergy
Zagras, Thief of Heartbeats
18%inclusion76 decks425 decks
17%synergy
Akiri, Fearless Voyager
18%inclusion76 decks425 decks
16%synergy
Queen Marchesa
18%inclusion75 decks425 decks
12%synergy
Blood Cultist
17%inclusion71 decks425 decks
16%synergy
Assault Intercessor
15%inclusion63 decks425 decks
14%synergy
Blood Artist
15%inclusion62 decks425 decks
-4%synergy
Sram, Senior Edificer
14%inclusion58 decks425 decks
11%synergy
Kratos, Stoic Father
14%inclusion28 decks206 decks
13%synergy
Massacre Girl, Known Killer
13%inclusion55 decks425 decks
11%synergy
Deathbringer Thoctar
12%inclusion52 decks425 decks
12%synergy
Stonehewer Giant
12%inclusion51 decks425 decks
11%synergy
Ankle Shanker
12%inclusion50 decks425 decks
9%synergy
Clackbridge Troll
11%inclusion48 decks425 decks
11%synergy
Qarsi Revenant
11%inclusion40 decks363 decks
8%synergy
Kellan, the Fae-Blooded
11%inclusion46 decks425 decks
10%synergy
Bureau Headmaster
10%inclusion44 decks423 decks
10%synergy
Giver of Runes
10%inclusion44 decks425 decks
8%synergy
Gisa, Glorious Resurrector
10%inclusion44 decks425 decks
10%synergy
Vulshok Sorcerer
10%inclusion43 decks425 decks
10%synergy
Cunning Sparkmage
10%inclusion43 decks425 decks
10%synergy
Witch Enchanter
9.2%inclusion39 decks425 decks
3%synergy
Tor Wauki the Younger
9.2%inclusion39 decks425 decks
9%synergy
Solemn Simulacrum
8.9%inclusion38 decks425 decks
-4%synergy
Royal Assassin
8.5%inclusion36 decks425 decks
5%synergy
Patrolling Peacemaker
8.4%inclusion22 decks261 decks
8%synergy
Robaran Mercenaries
8.2%inclusion35 decks425 decks
8%synergy
Torbran, Thane of Red Fell
7.8%inclusion33 decks425 decks
7%synergy
Instants
Boros Charm
44%inclusion189 decks425 decks
15%synergy
Swords to Plowshares
42%inclusion180 decks425 decks
-20%synergy
You Are Already Dead
38%inclusion163 decks425 decks
37%synergy
Stroke of Midnight
38%inclusion161 decks425 decks
26%synergy
Anguished Unmaking
35%inclusion148 decks425 decks
1%synergy
Crackling Doom
30%inclusion129 decks425 decks
13%synergy
Path to Exile
29%inclusion122 decks425 decks
-18%synergy
Generous Gift
28%inclusion120 decks425 decks
10%synergy
Mirrodin Avenged
25%inclusion108 decks425 decks
25%synergy
Fracture
24%inclusion101 decks425 decks
18%synergy
Flawless Maneuver
22%inclusion92 decks425 decks
7%synergy
Deflecting Swat
19%inclusion82 decks425 decks
3%synergy
Despark
17%inclusion71 decks425 decks
3%synergy
Malakir Rebirth
15%inclusion64 decks425 decks
10%synergy
Chaos Warp
15%inclusion63 decks425 decks
-1%synergy
Mortify
15%inclusion62 decks425 decks
-1%synergy
Wear // Tear
14%inclusion61 decks425 decks
3%synergy
Bladebrand
14%inclusion61 decks425 decks
14%synergy
Offer Immortality
13%inclusion56 decks425 decks
12%synergy
Dawn's Truce
13%inclusion55 decks422 decks
6%synergy
Rakdos Charm
13%inclusion54 decks425 decks
4%synergy
Dire Tactics
11%inclusion48 decks425 decks
9%synergy
Terminate
11%inclusion47 decks425 decks
-1%synergy
Sejiri Shelter
11%inclusion45 decks425 decks
8%synergy
Untimely Malfunction
10%inclusion41 decks419 decks
5%synergy
Deflecting Palm
10%inclusion41 decks425 decks
3%synergy
Deadly Rollick
8.5%inclusion36 decks425 decks
-3%synergy
Legion Leadership
8.0%inclusion34 decks425 decks
4%synergy
Dark Ritual
7.1%inclusion30 decks425 decks
-10%synergy
Fell the Profane
6.6%inclusion28 decks425 decks
0%synergy
Inkshield
6.6%inclusion28 decks425 decks
-1%synergy
Bedevil
6.4%inclusion27 decks425 decks
-1%synergy
Loran's Escape
6.1%inclusion26 decks425 decks
5%synergy
Utter End
6.1%inclusion26 decks425 decks
2%synergy
Thrill of Possibility
5.6%inclusion24 decks425 decks
-2%synergy
Tragic Slip
5.2%inclusion22 decks425 decks
4%synergy
Sorceries
Steelshaper's Gift
43%inclusion183 decks425 decks
40%synergy
Mythos of Snapdax
33%inclusion139 decks425 decks
27%synergy
Painful Truths
29%inclusion124 decks425 decks
21%synergy
Night's Whisper
29%inclusion123 decks425 decks
16%synergy
Read the Bones
26%inclusion112 decks425 decks
17%synergy
Vandalblast
22%inclusion95 decks425 decks
12%synergy
Call of the Death-Dweller
20%inclusion84 decks425 decks
19%synergy
Sevinne's Reclamation
19%inclusion80 decks425 decks
11%synergy
Blasphemous Act
18%inclusion78 decks425 decks
-4%synergy
Sign in Blood
16%inclusion66 decks425 decks
8%synergy
Damn
15%inclusion62 decks425 decks
-3%synergy
Chandra's Ignition
12%inclusion50 decks425 decks
10%synergy
Toxic Deluge
9.4%inclusion40 decks425 decks
1%synergy
Drown in Ichor
9.2%inclusion39 decks425 decks
9%synergy
Faithless Looting
8.7%inclusion37 decks425 decks
-7%synergy
Unearth
7.8%inclusion33 decks425 decks
5%synergy
Vindicate
7.8%inclusion33 decks425 decks
2%synergy
Single Combat
7.8%inclusion33 decks425 decks
6%synergy
Feed the Swarm
6.4%inclusion27 decks425 decks
1%synergy
Austere Command
5.6%inclusion24 decks425 decks
-2%synergy
Unfinished Business
5.6%inclusion24 decks425 decks
5%synergy
Reanimate
5.4%inclusion23 decks425 decks
-12%synergy
Utility Artifacts
Quietus Spike
43%inclusion184 decks425 decks
42%synergy
Gorgon Flail
42%inclusion179 decks425 decks
41%synergy
Magewright's Stone
41%inclusion175 decks425 decks
40%synergy
Illusionist's Bracers
31%inclusion131 decks425 decks
29%synergy
Thousand-Year Elixir
29%inclusion123 decks425 decks
28%synergy
Lightning Greaves
26%inclusion109 decks425 decks
-9%synergy
Hunter's Blowgun
24%inclusion103 decks425 decks
24%synergy
Mithril Coat
23%inclusion98 decks425 decks
18%synergy
Glaring Spotlight
18%inclusion75 decks425 decks
17%synergy
Brotherhood Regalia
16%inclusion66 decks423 decks
12%synergy
Sword of the Animist
16%inclusion66 decks425 decks
6%synergy
Hammer of Nazahn
14%inclusion58 decks425 decks
12%synergy
Battlemage's Bracers
12%inclusion50 decks425 decks
11%synergy
Whispersilk Cloak
12%inclusion49 decks425 decks
6%synergy
Robe of Stars
11%inclusion48 decks425 decks
10%synergy
Sword of Truth and Justice
11%inclusion45 decks425 decks
10%synergy
Wayfarer's Bauble
9.4%inclusion40 decks425 decks
1%synergy
The Masamune
8.8%inclusion26 decks295 decks
8%synergy
The Reaver Cleaver
8.7%inclusion37 decks425 decks
3%synergy
Darksteel Plate
8.7%inclusion37 decks425 decks
7%synergy
Puppet Strings
8.7%inclusion37 decks425 decks
8%synergy
Hidden Blade
7.8%inclusion33 decks425 decks
7%synergy
Haystack
7.3%inclusion31 decks425 decks
6%synergy
Dragonfire Blade
7.0%inclusion25 decks356 decks
6%synergy
Sword of Feast and Famine
6.8%inclusion29 decks425 decks
3%synergy
Conqueror's Flail
6.6%inclusion28 decks425 decks
5%synergy
Skullclamp
6.1%inclusion26 decks425 decks
-23%synergy
Scythe of the Wretched
6.1%inclusion26 decks425 decks
6%synergy
Halo Fountain
5.9%inclusion25 decks425 decks
5%synergy
Mask of Griselbrand
5.9%inclusion25 decks425 decks
5%synergy
Reaper's Talisman
5.6%inclusion24 decks425 decks
5%synergy
Enchantments
Dazzling Theater // Prop Room
32%inclusion132 decks419 decks
30%synergy
Phyrexian Arena
29%inclusion125 decks425 decks
11%synergy
All-Out Assault
28%inclusion103 decks363 decks
17%synergy
Revel in Riches
24%inclusion100 decks425 decks
17%synergy
Aspect of Gorgon
23%inclusion98 decks425 decks
23%synergy
Sigarda's Aid
22%inclusion94 decks425 decks
19%synergy
Reconnaissance
22%inclusion92 decks425 decks
10%synergy
Black Market Connections
20%inclusion85 decks425 decks
4%synergy
Forge Anew
19%inclusion79 decks425 decks
16%synergy
Agent of the Shadow Thieves
16%inclusion67 decks425 decks
15%synergy
Black Market
15%inclusion62 decks425 decks
9%synergy
Retreat to Hagra
13%inclusion56 decks425 decks
13%synergy
Death Pits of Rath
12%inclusion52 decks425 decks
12%synergy
At Knifepoint
12%inclusion52 decks425 decks
11%synergy
Nowhere to Run
11%inclusion46 decks423 decks
10%synergy
Ghostly Prison
11%inclusion45 decks425 decks
3%synergy
Trouble in Pairs
8.9%inclusion38 decks425 decks
4%synergy
Grave Betrayal
8.7%inclusion37 decks425 decks
8%synergy
Gift of Immortality
8.5%inclusion36 decks425 decks
8%synergy
Kaya's Ghostform
8.2%inclusion35 decks425 decks
6%synergy
Land Tax
7.5%inclusion32 decks425 decks
1%synergy
Eternal Thirst
7.1%inclusion30 decks425 decks
7%synergy
Spiteful Banditry
6.8%inclusion29 decks425 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
6.1%inclusion26 decks425 decks
6%synergy
Kaya, Geist Hunter
5.4%inclusion23 decks425 decks
1%synergy
Utility Lands
Vault of the Archangel
51%inclusion217 decks425 decks
28%synergy
Rogue's Passage
49%inclusion208 decks425 decks
25%synergy
Bojuka Bog
42%inclusion180 decks425 decks
11%synergy
Arcane Lighthouse
39%inclusion165 decks425 decks
38%synergy
Detection Tower
24%inclusion102 decks425 decks
23%synergy
Axgard Armory
21%inclusion89 decks425 decks
19%synergy
Karn's Bastion
20%inclusion84 decks425 decks
19%synergy
Buried Ruin
18%inclusion77 decks425 decks
15%synergy
Urborg, Tomb of Yawgmoth
16%inclusion69 decks425 decks
3%synergy
Shizo, Death's Storehouse
14%inclusion61 decks425 decks
7%synergy
Urza's Saga
12%inclusion51 decks425 decks
8%synergy
Reliquary Tower
12%inclusion50 decks425 decks
-3%synergy
Sunhome, Fortress of the Legion
9.4%inclusion40 decks425 decks
6%synergy
Command Beacon
7.1%inclusion30 decks425 decks
2%synergy
Eiganjo, Seat of the Empire
6.1%inclusion26 decks425 decks
0%synergy
Temple of the False God
5.6%inclusion24 decks425 decks
-1%synergy
Mana Artifacts
Sol Ring
87%inclusion368 decks425 decks
-2%synergy
Arcane Signet
84%inclusion359 decks425 decks
-1%synergy
Patriar's Seal
56%inclusion239 decks425 decks
54%synergy
Talisman of Hierarchy
42%inclusion180 decks425 decks
2%synergy
Orzhov Signet
39%inclusion164 decks425 decks
7%synergy
Talisman of Conviction
38%inclusion163 decks425 decks
-3%synergy
Talisman of Indulgence
36%inclusion154 decks425 decks
-1%synergy
Rakdos Signet
34%inclusion145 decks425 decks
5%synergy
Boros Signet
32%inclusion138 decks425 decks
5%synergy
Fellwar Stone
25%inclusion106 decks425 decks
-3%synergy
Bounty Board
21%inclusion88 decks425 decks
19%synergy
Commander's Sphere
13%inclusion54 decks425 decks
-1%synergy
Bandit's Haul
12%inclusion53 decks425 decks
11%synergy
Aetheric Amplifier
12%inclusion49 decks410 decks
12%synergy
Chromatic Lantern
8.7%inclusion37 decks425 decks
-2%synergy
Mind Stone
6.6%inclusion28 decks425 decks
-2%synergy
Lands
Swamp
97%inclusion412 decks425 decks
2%synergy
Plains
96%inclusion409 decks425 decks
1%synergy
Command Tower
95%inclusion404 decks425 decks
3%synergy
Mountain
94%inclusion398 decks425 decks
0%synergy
Nomad Outpost
61%inclusion260 decks425 decks
3%synergy
Exotic Orchard
60%inclusion255 decks425 decks
8%synergy
Savai Triome
59%inclusion252 decks425 decks
22%synergy
Godless Shrine
56%inclusion239 decks425 decks
9%synergy
Sacred Foundry
54%inclusion228 decks425 decks
9%synergy
Isolated Chapel
53%inclusion226 decks425 decks
0%synergy
Blood Crypt
52%inclusion223 decks425 decks
8%synergy
Dragonskull Summit
50%inclusion213 decks425 decks
-2%synergy
Clifftop Retreat
50%inclusion211 decks425 decks
-2%synergy
Vault of Champions
48%inclusion203 decks425 decks
15%synergy
Forbidden Orchard
47%inclusion200 decks425 decks
45%synergy
Caves of Koilos
47%inclusion199 decks425 decks
8%synergy
Battlefield Forge
45%inclusion193 decks425 decks
5%synergy
Spectator Seating
44%inclusion189 decks425 decks
13%synergy
Luxury Suite
42%inclusion177 decks425 decks
11%synergy
Bloodstained Mire
37%inclusion157 decks425 decks
4%synergy
Marsh Flats
37%inclusion156 decks425 decks
5%synergy
Arid Mesa
35%inclusion150 decks425 decks
4%synergy
Shattered Sanctum
30%inclusion128 decks425 decks
6%synergy
Smoldering Marsh
29%inclusion125 decks425 decks
-7%synergy
Sulfurous Springs
29%inclusion124 decks425 decks
1%synergy
Sundown Pass
28%inclusion120 decks425 decks
8%synergy
Haunted Ridge
26%inclusion112 decks425 decks
7%synergy
Path of Ancestry
24%inclusion101 decks425 decks
-14%synergy
Fetid Heath
20%inclusion87 decks425 decks
-1%synergy
Rugged Prairie
20%inclusion87 decks425 decks
3%synergy
Orzhov Basilica
19%inclusion81 decks425 decks
5%synergy
Evolving Wilds
19%inclusion79 decks425 decks
-7%synergy
Temple of Silence
18%inclusion77 decks425 decks
-4%synergy
Shattered Landscape
17%inclusion74 decks424 decks
-1%synergy
Brightclimb Pathway
16%inclusion67 decks425 decks
7%synergy
Temple of Triumph
16%inclusion67 decks425 decks
-6%synergy
Boros Garrison
16%inclusion66 decks425 decks
3%synergy
Needleverge Pathway
16%inclusion66 decks425 decks
8%synergy
Malakir Rebirth
15%inclusion64 decks425 decks
10%synergy
Rakdos Carnarium
15%inclusion62 decks425 decks
3%synergy
Temple of Malice
13%inclusion57 decks425 decks
-3%synergy
Scrubland
13%inclusion57 decks425 decks
1%synergy
Badlands
13%inclusion56 decks425 decks
1%synergy
Plateau
13%inclusion56 decks425 decks
1%synergy
Blightstep Pathway
13%inclusion54 decks425 decks
5%synergy
Terramorphic Expanse
12%inclusion53 decks425 decks
-7%synergy
Blazemire Verge
12%inclusion52 decks419 decks
1%synergy
Tainted Field
12%inclusion52 decks425 decks
1%synergy
Fabled Passage
12%inclusion51 decks425 decks
4%synergy
Shadowblood Ridge
12%inclusion50 decks425 decks
-3%synergy