Kelsien, the Plague (Commander) - Budget Core

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #423
75decks
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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20%inclusion1 decks5 decks
19%synergy
High Synergy Cards
Minthara, Merciless Soul
81%inclusion61 decks75 decks
80%synergy
Falthis, Shadowcat Familiar
76%inclusion57 decks75 decks
75%synergy
Rune of Mortality
76%inclusion57 decks75 decks
75%synergy
You Are Already Dead
73%inclusion55 decks75 decks
72%synergy
Mirrodin Avenged
68%inclusion51 decks75 decks
67%synergy
Humble Defector
61%inclusion46 decks75 decks
59%synergy
Gorgon's Head
59%inclusion44 decks75 decks
57%synergy
General's Enforcer
64%inclusion48 decks75 decks
56%synergy
Blood Cultist
56%inclusion42 decks75 decks
56%synergy
Bladebrand
56%inclusion42 decks75 decks
55%synergy
Top Cards
Morbid Opportunist
69%inclusion52 decks75 decks
51%synergy
Crackling Doom
60%inclusion45 decks75 decks
43%synergy
Mythos of Snapdax
59%inclusion44 decks75 decks
53%synergy
Otharri, Suns' Glory
57%inclusion43 decks75 decks
52%synergy
Shay Cormac
57%inclusion37 decks65 decks
54%synergy
Despark
56%inclusion42 decks75 decks
42%synergy
Basilisk Collar
56%inclusion42 decks75 decks
52%synergy
Hunter's Blowgun
55%inclusion41 decks75 decks
54%synergy
Mathas, Fiend Seeker
53%inclusion40 decks75 decks
51%synergy
Read the Bones
53%inclusion40 decks75 decks
44%synergy
Creatures
Void Beckoner
53%inclusion40 decks75 decks
53%synergy
Slaughter Specialist
49%inclusion37 decks75 decks
48%synergy
Taii Wakeen, Perfect Shot
49%inclusion36 decks73 decks
49%synergy
Harvester of Souls
48%inclusion36 decks75 decks
45%synergy
Ankle Shanker
48%inclusion36 decks75 decks
45%synergy
Ertha Jo, Frontier Mentor
48%inclusion35 decks73 decks
47%synergy
Vulshok Sorcerer
45%inclusion34 decks75 decks
45%synergy
Archetype of Finality
45%inclusion34 decks75 decks
44%synergy
Tor Wauki the Younger
44%inclusion33 decks75 decks
44%synergy
Termination Facilitator
43%inclusion32 decks75 decks
41%synergy
Clackbridge Troll
43%inclusion32 decks75 decks
42%synergy
Cunning Sparkmage
43%inclusion32 decks75 decks
42%synergy
Zagras, Thief of Heartbeats
40%inclusion30 decks75 decks
39%synergy
Onyx Mage
40%inclusion30 decks75 decks
40%synergy
Deathbringer Thoctar
36%inclusion27 decks75 decks
36%synergy
Sun Titan
36%inclusion27 decks75 decks
25%synergy
Magda, the Hoardmaster
34%inclusion25 decks73 decks
32%synergy
Robaran Mercenaries
31%inclusion23 decks75 decks
30%synergy
Rakdos Ickspitter
28%inclusion21 decks75 decks
28%synergy
Lae'zel, Vlaakith's Champion
28%inclusion21 decks75 decks
26%synergy
Solemn Simulacrum
28%inclusion21 decks75 decks
15%synergy
Jirina, Dauntless General
24%inclusion18 decks75 decks
22%synergy
Kalemne, Disciple of Iroas
23%inclusion17 decks75 decks
22%synergy
Mari, the Killing Quill
21%inclusion16 decks75 decks
15%synergy
Assault Intercessor
21%inclusion16 decks75 decks
21%synergy
Akiri, Fearless Voyager
21%inclusion16 decks75 decks
19%synergy
Queen Marchesa
20%inclusion15 decks75 decks
14%synergy
Prodigal Pyromancer
17%inclusion13 decks75 decks
17%synergy
Grateful Apparition
16%inclusion12 decks75 decks
16%synergy
Royal Assassin
16%inclusion12 decks75 decks
13%synergy
Alesha, Who Smiles at Death
12%inclusion9 decks75 decks
8%synergy
Akroan Horse
12%inclusion9 decks75 decks
12%synergy
Burnished Hart
12%inclusion9 decks75 decks
10%synergy
White Plume Adventurer
12%inclusion9 decks75 decks
11%synergy
Zuko, Firebending Master
10%inclusion1 decks10 decks
8%synergy
Athreos, Shroud-Veiled
9.3%inclusion7 decks75 decks
8%synergy
Lurking Deadeye
9.3%inclusion7 decks75 decks
9%synergy
Sram, Senior Edificer
9.3%inclusion7 decks75 decks
6%synergy
Vincent Valentine
9.1%inclusion2 decks22 decks
8%synergy
Mahadi, Emporium Master
8.0%inclusion6 decks75 decks
-1%synergy
Hooded Blightfang
8.0%inclusion6 decks75 decks
8%synergy
Stun Sniper
8.0%inclusion6 decks75 decks
8%synergy
Qarsi Revenant
7.1%inclusion2 decks28 decks
4%synergy
Obosh, the Preypiercer
6.7%inclusion5 decks75 decks
6%synergy
Dauntless Aven
6.7%inclusion5 decks75 decks
7%synergy
Bastion Protector
6.7%inclusion5 decks75 decks
5%synergy
Torbran, Thane of Red Fell
6.7%inclusion5 decks75 decks
6%synergy
Gisa, Glorious Resurrector
6.7%inclusion5 decks75 decks
6%synergy
Faller's Faithful
6.3%inclusion1 decks16 decks
6%synergy
High-Society Hunter
6.0%inclusion3 decks50 decks
4%synergy
Instants
Mortify
51%inclusion38 decks75 decks
35%synergy
Offer Immortality
43%inclusion32 decks75 decks
42%synergy
Dire Tactics
41%inclusion31 decks75 decks
39%synergy
Terminate
40%inclusion30 decks75 decks
28%synergy
Virulent Swipe
39%inclusion29 decks75 decks
38%synergy
Toxin Analysis
35%inclusion26 decks75 decks
34%synergy
Thrill of Possibility
27%inclusion20 decks75 decks
19%synergy
Stroke of Midnight
27%inclusion20 decks75 decks
15%synergy
Tragic Slip
20%inclusion15 decks75 decks
19%synergy
Path to Exile
20%inclusion15 decks75 decks
-27%synergy
Battle-Rage Blessing
19%inclusion14 decks75 decks
18%synergy
Generous Gift
17%inclusion13 decks75 decks
-1%synergy
Swords to Plowshares
16%inclusion12 decks75 decks
-46%synergy
Bedevil
16%inclusion12 decks75 decks
9%synergy
Whisper of the Dross
15%inclusion11 decks75 decks
14%synergy
Volt Charge
15%inclusion11 decks75 decks
15%synergy
To Arms!
15%inclusion11 decks75 decks
14%synergy
Utter End
13%inclusion10 decks75 decks
9%synergy
Rakdos Charm
12%inclusion9 decks75 decks
3%synergy
Touch of Moonglove
12%inclusion9 decks75 decks
12%synergy
Alchemist's Gift
11%inclusion8 decks75 decks
11%synergy
Djeru's Resolve
11%inclusion8 decks75 decks
11%synergy
Coat with Venom
11%inclusion8 decks75 decks
11%synergy
Fracture
11%inclusion8 decks75 decks
5%synergy
Abrade
11%inclusion8 decks75 decks
5%synergy
Chaos Warp
11%inclusion8 decks75 decks
-6%synergy
Wear // Tear
11%inclusion8 decks75 decks
-1%synergy
Inevitable Defeat
10%inclusion3 decks29 decks
4%synergy
Loran's Escape
9.3%inclusion7 decks75 decks
8%synergy
Legion Leadership
8.6%inclusion6 decks70 decks
4%synergy
Murder
8.0%inclusion6 decks75 decks
6%synergy
Wisecrack
7.7%inclusion1 decks13 decks
8%synergy
Disenchant
6.7%inclusion5 decks75 decks
5%synergy
Lash of Thorns
6.7%inclusion5 decks75 decks
7%synergy
Sazacap's Brew
6.7%inclusion4 decks60 decks
6%synergy
Reroute Systems
6.3%inclusion1 decks16 decks
6%synergy
Lightning Bolt
5.3%inclusion4 decks75 decks
2%synergy
Blessed Alliance
5.3%inclusion4 decks75 decks
5%synergy
Anguished Unmaking
5.3%inclusion4 decks75 decks
-29%synergy
Blood Pact
5.3%inclusion4 decks75 decks
5%synergy
Moment of Valor
5.3%inclusion4 decks75 decks
5%synergy
Deflecting Palm
5.3%inclusion4 decks75 decks
-1%synergy
Go for the Throat
5.3%inclusion4 decks75 decks
2%synergy
Return to Dust
5.3%inclusion4 decks75 decks
2%synergy
Sorceries
Painful Truths
51%inclusion38 decks75 decks
42%synergy
Call of the Death-Dweller
47%inclusion35 decks75 decks
46%synergy
Sign in Blood
44%inclusion33 decks75 decks
36%synergy
Drown in Ichor
31%inclusion23 decks75 decks
30%synergy
Open the Armory
25%inclusion19 decks75 decks
21%synergy
Austere Command
21%inclusion16 decks75 decks
14%synergy
Faithless Looting
20%inclusion15 decks75 decks
5%synergy
Unearth
19%inclusion14 decks75 decks
16%synergy
Single Combat
17%inclusion13 decks75 decks
16%synergy
Feed the Swarm
16%inclusion12 decks75 decks
11%synergy
Vat Emergence
15%inclusion11 decks75 decks
15%synergy
Sevinne's Reclamation
13%inclusion10 decks75 decks
6%synergy
Night's Whisper
13%inclusion10 decks75 decks
0%synergy
Unfinished Business
13%inclusion10 decks75 decks
13%synergy
Vindicate
12%inclusion9 decks75 decks
6%synergy
Ambition's Cost
12%inclusion9 decks75 decks
10%synergy
Cleansing Nova
12%inclusion9 decks75 decks
10%synergy
Rip Apart
11%inclusion8 decks75 decks
10%synergy
Avatar's Wrath
10%inclusion1 decks10 decks
6%synergy
Recommission
8.0%inclusion6 decks75 decks
8%synergy
Divine Reckoning
8.0%inclusion6 decks75 decks
8%synergy
Blasphemous Act
6.7%inclusion5 decks75 decks
-16%synergy
Reconstruct History
6.7%inclusion5 decks75 decks
6%synergy
Ruinous Ultimatum
6.7%inclusion5 decks75 decks
-33%synergy
Decode Transmissions
5.9%inclusion1 decks17 decks
6%synergy
Diabolic Tutor
5.3%inclusion4 decks75 decks
-1%synergy
Utility Artifacts
Quietus Spike
48%inclusion36 decks75 decks
47%synergy
Vorpal Sword
45%inclusion34 decks75 decks
43%synergy
Gorgon Flail
40%inclusion30 decks75 decks
39%synergy
Sting, the Glinting Dagger
40%inclusion30 decks75 decks
38%synergy
Swiftfoot Boots
28%inclusion21 decks75 decks
-4%synergy
Reaper's Talisman
27%inclusion20 decks75 decks
26%synergy
Wayfarer's Bauble
24%inclusion18 decks75 decks
15%synergy
Hidden Blade
23%inclusion17 decks75 decks
22%synergy
Puppet Strings
17%inclusion13 decks75 decks
17%synergy
Mask of Griselbrand
17%inclusion13 decks75 decks
16%synergy
Loxodon Warhammer
12%inclusion9 decks75 decks
10%synergy
Jandor's Saddlebags
11%inclusion8 decks75 decks
11%synergy
Blackblade Reforged
8.0%inclusion6 decks75 decks
4%synergy
Dragonfire Blade
7.4%inclusion2 decks27 decks
6%synergy
Illusionist's Bracers
6.7%inclusion5 decks75 decks
5%synergy
Maul of the Skyclaves
5.3%inclusion4 decks75 decks
4%synergy
Whispersilk Cloak
5.3%inclusion4 decks75 decks
0%synergy
Glaring Spotlight
5.3%inclusion4 decks75 decks
5%synergy
Mirror Shield
5.3%inclusion4 decks75 decks
5%synergy
Viridian Longbow
5.3%inclusion4 decks75 decks
5%synergy
Enchantments
Aspect of Gorgon
51%inclusion38 decks75 decks
50%synergy
At Knifepoint
33%inclusion24 decks73 decks
31%synergy
Retreat to Hagra
32%inclusion24 decks75 decks
32%synergy
Eternal Thirst
29%inclusion22 decks75 decks
29%synergy
Death Pits of Rath
25%inclusion19 decks75 decks
25%synergy
Dazzling Theater // Prop Room
23%inclusion13 decks56 decks
21%synergy
Gift of Doom
21%inclusion16 decks75 decks
20%synergy
Agent of the Shadow Thieves
21%inclusion16 decks75 decks
21%synergy
Derelict Attic // Widow's Walk
13%inclusion7 decks56 decks
12%synergy
Sparring Regimen
11%inclusion8 decks75 decks
11%synergy
Feast of the Victorious Dead
11%inclusion8 decks75 decks
10%synergy
Glasswing Grace
8.6%inclusion6 decks70 decks
7%synergy
Forging the Tyrite Sword
8.0%inclusion6 decks75 decks
7%synergy
Phyrexian Arena
8.0%inclusion6 decks75 decks
-11%synergy
Life Insurance
8.0%inclusion6 decks75 decks
6%synergy
Underworld Connections
6.7%inclusion5 decks75 decks
6%synergy
Grasping Shadows
6.7%inclusion5 decks75 decks
6%synergy
Rite of the Raging Storm
6.7%inclusion5 decks75 decks
6%synergy
Greed
6.7%inclusion5 decks75 decks
6%synergy
Reconnaissance
5.3%inclusion4 decks75 decks
-6%synergy
Shiny Impetus
5.3%inclusion4 decks75 decks
2%synergy
Kaya's Ghostform
5.3%inclusion4 decks75 decks
3%synergy
Gauntlets of Light
5.3%inclusion4 decks75 decks
5%synergy
Witch's Mist
5.3%inclusion4 decks75 decks
5%synergy
Tribute to Horobi
5.3%inclusion4 decks75 decks
5%synergy
Phyresis
5.3%inclusion4 decks75 decks
5%synergy
Utility Lands
Rogue's Passage
49%inclusion37 decks75 decks
26%synergy
Vault of the Archangel
44%inclusion33 decks75 decks
21%synergy
Bojuka Bog
24%inclusion18 decks75 decks
-7%synergy
Axgard Armory
21%inclusion16 decks75 decks
19%synergy
Temple of the False God
9.3%inclusion7 decks75 decks
3%synergy
Buried Ruin
8.0%inclusion6 decks75 decks
5%synergy
Sunhome, Fortress of the Legion
8.0%inclusion6 decks75 decks
4%synergy
Windbrisk Heights
5.3%inclusion4 decks75 decks
-5%synergy
Mana Artifacts
Arcane Signet
83%inclusion62 decks75 decks
-3%synergy
Orzhov Signet
65%inclusion49 decks75 decks
33%synergy
Sol Ring
61%inclusion46 decks75 decks
-27%synergy
Rakdos Signet
56%inclusion42 decks75 decks
26%synergy
Boros Signet
55%inclusion41 decks75 decks
26%synergy
Commander's Sphere
49%inclusion37 decks75 decks
35%synergy
Talisman of Conviction
28%inclusion21 decks75 decks
-13%synergy
Fellwar Stone
23%inclusion17 decks75 decks
-5%synergy
Bounty Board
19%inclusion14 decks73 decks
17%synergy
Patriar's Seal
16%inclusion12 decks75 decks
14%synergy
Talisman of Hierarchy
16%inclusion12 decks75 decks
-25%synergy
Bandit's Haul
12%inclusion9 decks73 decks
11%synergy
Mind Stone
12%inclusion9 decks75 decks
3%synergy
Savai Crystal
12%inclusion9 decks75 decks
10%synergy
Mardu Banner
12%inclusion9 decks75 decks
9%synergy
Talisman of Indulgence
5.3%inclusion4 decks75 decks
-32%synergy
Lands
Plains
100%inclusion75 decks75 decks
5%synergy
Swamp
100%inclusion75 decks75 decks
5%synergy
Mountain
100%inclusion75 decks75 decks
6%synergy
Command Tower
89%inclusion67 decks75 decks
-3%synergy
Nomad Outpost
80%inclusion60 decks75 decks
21%synergy
Exotic Orchard
61%inclusion46 decks75 decks
9%synergy
Evolving Wilds
61%inclusion46 decks75 decks
35%synergy
Terramorphic Expanse
55%inclusion41 decks75 decks
35%synergy
Smoldering Marsh
52%inclusion39 decks75 decks
16%synergy
Shattered Landscape
49%inclusion33 decks68 decks
29%synergy
Orzhov Basilica
43%inclusion32 decks75 decks
29%synergy
Temple of Silence
43%inclusion32 decks75 decks
20%synergy
Temple of Triumph
40%inclusion30 decks75 decks
18%synergy
Boros Garrison
40%inclusion30 decks75 decks
27%synergy
Rakdos Carnarium
39%inclusion29 decks75 decks
27%synergy
Path of Ancestry
35%inclusion26 decks75 decks
-3%synergy
Myriad Landscape
32%inclusion24 decks75 decks
20%synergy
Caves of Koilos
32%inclusion24 decks75 decks
-7%synergy
Clifftop Retreat
32%inclusion24 decks75 decks
-19%synergy
Battlefield Forge
25%inclusion19 decks75 decks
-15%synergy
Temple of Malice
25%inclusion19 decks75 decks
8%synergy
Isolated Chapel
23%inclusion17 decks75 decks
-30%synergy
Bloodfell Caves
21%inclusion16 decks75 decks
12%synergy
Shadowblood Ridge
20%inclusion15 decks75 decks
5%synergy
Scoured Barrens
17%inclusion13 decks75 decks
8%synergy
Dragonskull Summit
17%inclusion13 decks75 decks
-35%synergy
Tainted Field
15%inclusion11 decks75 decks
3%synergy
Shineshadow Snarl
12%inclusion9 decks75 decks
3%synergy
Wind-Scarred Crag
11%inclusion8 decks75 decks
2%synergy
Furycalm Snarl
9.3%inclusion7 decks75 decks
0%synergy
Ash Barrens
9.3%inclusion7 decks75 decks
2%synergy
Glasswing Grace
8.6%inclusion6 decks70 decks
7%synergy
Legion Leadership
8.6%inclusion6 decks70 decks
4%synergy
Foreboding Ruins
8.0%inclusion6 decks75 decks
-3%synergy
Sunscorched Divide
8.0%inclusion6 decks75 decks
2%synergy
Rugged Prairie
8.0%inclusion6 decks75 decks
-9%synergy
Daily Bugle Building
7.7%inclusion1 decks13 decks
7%synergy
Rakdos Guildgate
6.7%inclusion5 decks75 decks
4%synergy
Tainted Peak
6.7%inclusion5 decks75 decks
-4%synergy
Sulfurous Springs
6.7%inclusion5 decks75 decks
-21%synergy
Desolate Mire
6.7%inclusion5 decks75 decks
-5%synergy
Fetid Heath
6.7%inclusion5 decks75 decks
-14%synergy
Orzhov Guildgate
5.3%inclusion4 decks75 decks
3%synergy
Thriving Bluff
5.3%inclusion4 decks75 decks
3%synergy
Thriving Moor
5.3%inclusion4 decks75 decks
3%synergy
Thriving Heath
5.3%inclusion4 decks75 decks
3%synergy
Geothermal Bog
5.3%inclusion4 decks75 decks
2%synergy
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