Kelsien, the Plague (Commander) - Core

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #423
753decks
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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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Adept Watershaper
2.6%inclusion2 decks78 decks
1%synergy
Oft-Nabbed Goat
2.5%inclusion2 decks80 decks
2%synergy
Kinscaer Sentry
1.3%inclusion1 decks78 decks
-1%synergy
End-Blaze Epiphany
1.3%inclusion1 decks78 decks
1%synergy
Feed the Flames
1.3%inclusion1 decks78 decks
1%synergy
High Synergy Cards
Basilisk Collar
84%inclusion632 decks753 decks
80%synergy
Minthara, Merciless Soul
78%inclusion590 decks753 decks
77%synergy
Rune of Mortality
74%inclusion554 decks753 decks
72%synergy
Otharri, Suns' Glory
77%inclusion582 decks753 decks
72%synergy
Vorpal Sword
65%inclusion493 decks753 decks
63%synergy
Falthis, Shadowcat Familiar
62%inclusion470 decks753 decks
61%synergy
Gorgon's Head
62%inclusion466 decks753 decks
61%synergy
You Are Already Dead
61%inclusion459 decks753 decks
59%synergy
Mari, the Killing Quill
64%inclusion485 decks753 decks
58%synergy
Sting, the Glinting Dagger
59%inclusion444 decks753 decks
57%synergy
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Morbid Opportunist
74%inclusion557 decks753 decks
56%synergy
General's Enforcer
56%inclusion425 decks753 decks
48%synergy
Drumbellower
56%inclusion423 decks753 decks
54%synergy
Shay Cormac
55%inclusion364 decks657 decks
52%synergy
Swiftfoot Boots
55%inclusion412 decks753 decks
23%synergy
Mirrodin Avenged
48%inclusion361 decks753 decks
47%synergy
Humble Defector
48%inclusion359 decks753 decks
45%synergy
Termination Facilitator
47%inclusion354 decks753 decks
45%synergy
Gift of Doom
47%inclusion351 decks753 decks
46%synergy
Kalemne, Disciple of Iroas
46%inclusion350 decks753 decks
46%synergy
Game Changers
Farewell
5.3%inclusion40 decks753 decks
-5%synergy
Creatures
Mathas, Fiend Seeker
45%inclusion337 decks753 decks
43%synergy
Slaughter Specialist
44%inclusion335 decks753 decks
43%synergy
Lae'zel, Vlaakith's Champion
44%inclusion329 decks753 decks
42%synergy
Harvester of Souls
41%inclusion310 decks753 decks
38%synergy
Daxos the Returned
41%inclusion308 decks753 decks
40%synergy
Taii Wakeen, Perfect Shot
41%inclusion297 decks733 decks
40%synergy
Magda, the Hoardmaster
39%inclusion287 decks733 decks
37%synergy
Archetype of Finality
37%inclusion277 decks753 decks
36%synergy
White Plume Adventurer
37%inclusion276 decks753 decks
35%synergy
Void Beckoner
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35%synergy
Ertha Jo, Frontier Mentor
32%inclusion236 decks733 decks
32%synergy
Blood Cultist
32%inclusion241 decks753 decks
32%synergy
Maha, Its Feathers Night
32%inclusion199 decks631 decks
30%synergy
Zagras, Thief of Heartbeats
29%inclusion218 decks753 decks
28%synergy
Sun Titan
27%inclusion202 decks753 decks
16%synergy
Ankle Shanker
26%inclusion197 decks753 decks
23%synergy
Mother of Runes
24%inclusion179 decks753 decks
16%synergy
Assault Intercessor
22%inclusion166 decks753 decks
21%synergy
Goblin Sharpshooter
22%inclusion162 decks753 decks
21%synergy
Athreos, Shroud-Veiled
21%inclusion159 decks753 decks
20%synergy
Clackbridge Troll
21%inclusion158 decks753 decks
21%synergy
Queen Marchesa
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14%synergy
Cunning Sparkmage
20%inclusion154 decks753 decks
20%synergy
Marvin, Murderous Mimic
20%inclusion116 decks576 decks
19%synergy
Deathbringer Thoctar
20%inclusion147 decks753 decks
19%synergy
Tor Wauki the Younger
18%inclusion139 decks753 decks
18%synergy
Vulshok Sorcerer
18%inclusion132 decks753 decks
17%synergy
Akiri, Fearless Voyager
17%inclusion129 decks753 decks
15%synergy
Robaran Mercenaries
16%inclusion122 decks753 decks
16%synergy
Solemn Simulacrum
16%inclusion119 decks753 decks
3%synergy
Grateful Apparition
15%inclusion113 decks753 decks
15%synergy
Massacre Girl, Known Killer
15%inclusion110 decks753 decks
12%synergy
Puresteel Paladin
14%inclusion109 decks753 decks
10%synergy
Royal Assassin
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11%synergy
Torbran, Thane of Red Fell
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13%synergy
Onyx Mage
12%inclusion92 decks753 decks
12%synergy
Azula, Ruthless Firebender
12%inclusion16 decks138 decks
11%synergy
Blood Artist
11%inclusion86 decks753 decks
-7%synergy
Rakdos Ickspitter
11%inclusion85 decks753 decks
11%synergy
Aang, Airbending Master
11%inclusion21 decks196 decks
10%synergy
Gisa, Glorious Resurrector
11%inclusion80 decks753 decks
10%synergy
Kratos, Stoic Father
10%inclusion17 decks167 decks
10%synergy
Jirina, Dauntless General
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8%synergy
Zuko, Firebending Master
9.5%inclusion13 decks137 decks
8%synergy
Bureau Headmaster
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9%synergy
Norn's Choirmaster
9.0%inclusion68 decks753 decks
9%synergy
Sram, Senior Edificer
8.5%inclusion64 decks753 decks
6%synergy
Prodigal Pyromancer
8.0%inclusion60 decks753 decks
8%synergy
Akroan Horse
7.8%inclusion59 decks753 decks
8%synergy
Metastatic Evangel
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7%synergy
Instants
Crackling Doom
46%inclusion347 decks753 decks
29%synergy
Swords to Plowshares
44%inclusion329 decks753 decks
-18%synergy
Boros Charm
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8%synergy
Stroke of Midnight
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22%synergy
Fracture
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25%synergy
Despark
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15%synergy
Offer Immortality
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28%synergy
Generous Gift
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9%synergy
Bladebrand
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25%synergy
Path to Exile
26%inclusion195 decks753 decks
-21%synergy
Anguished Unmaking
24%inclusion180 decks753 decks
-10%synergy
Terminate
20%inclusion153 decks753 decks
8%synergy
Mortify
19%inclusion146 decks753 decks
4%synergy
Dire Tactics
19%inclusion142 decks753 decks
16%synergy
Chaos Warp
15%inclusion111 decks753 decks
-1%synergy
Virulent Swipe
13%inclusion97 decks753 decks
13%synergy
Wear // Tear
12%inclusion92 decks753 decks
0%synergy
Rakdos Charm
12%inclusion91 decks753 decks
3%synergy
Flawless Maneuver
12%inclusion88 decks753 decks
-3%synergy
Toxin Analysis
11%inclusion82 decks753 decks
11%synergy
Battle-Rage Blessing
10%inclusion79 decks753 decks
10%synergy
Tragic Slip
10%inclusion76 decks753 decks
9%synergy
Thrill of Possibility
10%inclusion75 decks753 decks
2%synergy
Bedevil
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3%synergy
Dawn's Truce
9.4%inclusion59 decks630 decks
2%synergy
Volt Charge
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9%synergy
Deflecting Palm
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2%synergy
Whisper of the Dross
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9%synergy
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3%synergy
Legion Leadership
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3%synergy
Sejiri Shelter
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5%synergy
Touch of Moonglove
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7%synergy
Utter End
6.6%inclusion50 decks753 decks
2%synergy
Untimely Malfunction
6.3%inclusion37 decks583 decks
1%synergy
Inevitable Defeat
5.2%inclusion19 decks362 decks
-1%synergy
To Arms!
5.0%inclusion38 decks753 decks
5%synergy
Sorceries
Open the Armory
43%inclusion324 decks753 decks
39%synergy
Ruinous Ultimatum
41%inclusion308 decks753 decks
1%synergy
Mythos of Snapdax
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31%synergy
Painful Truths
35%inclusion262 decks753 decks
26%synergy
Read the Bones
31%inclusion236 decks753 decks
22%synergy
Call of the Death-Dweller
27%inclusion205 decks753 decks
27%synergy
Night's Whisper
22%inclusion168 decks753 decks
9%synergy
Drown in Ichor
22%inclusion167 decks753 decks
22%synergy
Sign in Blood
21%inclusion159 decks753 decks
13%synergy
Blasphemous Act
17%inclusion129 decks753 decks
-6%synergy
Vandalblast
16%inclusion120 decks753 decks
5%synergy
Steelshaper's Gift
14%inclusion106 decks753 decks
11%synergy
Vindicate
13%inclusion97 decks753 decks
7%synergy
Sevinne's Reclamation
13%inclusion95 decks753 decks
5%synergy
Damn
12%inclusion91 decks753 decks
-6%synergy
Unfinished Business
12%inclusion89 decks753 decks
11%synergy
Single Combat
10%inclusion79 decks753 decks
9%synergy
Unearth
10%inclusion74 decks753 decks
8%synergy
Vat Emergence
10%inclusion73 decks753 decks
10%synergy
Austere Command
10%inclusion73 decks753 decks
2%synergy
Chandra's Ignition
9.3%inclusion70 decks753 decks
7%synergy
Faithless Looting
8.8%inclusion66 decks753 decks
-7%synergy
Feed the Swarm
8.8%inclusion66 decks753 decks
4%synergy
Rip Apart
7.0%inclusion53 decks753 decks
6%synergy
Ambition's Cost
5.8%inclusion44 decks753 decks
4%synergy
Tempt with Bunnies
5.3%inclusion33 decks624 decks
5%synergy
Utility Artifacts
Quietus Spike
43%inclusion325 decks753 decks
42%synergy
Gorgon Flail
43%inclusion325 decks753 decks
42%synergy
Thornbite Staff
43%inclusion322 decks753 decks
41%synergy
Hunter's Blowgun
33%inclusion252 decks753 decks
33%synergy
Magewright's Stone
32%inclusion243 decks753 decks
31%synergy
Illusionist's Bracers
28%inclusion211 decks753 decks
26%synergy
Shadowspear
25%inclusion188 decks753 decks
21%synergy
Thousand-Year Elixir
25%inclusion185 decks753 decks
24%synergy
Glaring Spotlight
17%inclusion126 decks753 decks
16%synergy
Battlemage's Bracers
16%inclusion118 decks753 decks
15%synergy
Wayfarer's Bauble
16%inclusion117 decks753 decks
7%synergy
Lightning Greaves
14%inclusion109 decks753 decks
-20%synergy
Puppet Strings
12%inclusion93 decks753 decks
12%synergy
Whispersilk Cloak
12%inclusion88 decks753 decks
6%synergy
Brotherhood Regalia
11%inclusion70 decks656 decks
7%synergy
Mithril Coat
11%inclusion80 decks753 decks
5%synergy
Hidden Blade
10%inclusion72 decks753 decks
9%synergy
Mask of Griselbrand
8.2%inclusion62 decks753 decks
7%synergy
Loxodon Warhammer
7.2%inclusion54 decks753 decks
5%synergy
Reaper's Talisman
6.9%inclusion52 decks753 decks
6%synergy
Sword of the Animist
6.8%inclusion51 decks753 decks
-2%synergy
Sword of Truth and Justice
6.0%inclusion45 decks753 decks
5%synergy
Dragonfire Blade
5.9%inclusion19 decks320 decks
4%synergy
Contagion Clasp
5.6%inclusion42 decks753 decks
5%synergy
Halo Fountain
5.2%inclusion39 decks753 decks
5%synergy
Enchantments
Aspect of Gorgon
30%inclusion227 decks753 decks
30%synergy
Dazzling Theater // Prop Room
30%inclusion169 decks572 decks
28%synergy
Phyrexian Arena
28%inclusion209 decks753 decks
9%synergy
Fighter Class
26%inclusion193 decks753 decks
23%synergy
All-Out Assault
24%inclusion78 decks325 decks
12%synergy
At Knifepoint
22%inclusion163 decks733 decks
21%synergy
Retreat to Hagra
19%inclusion143 decks753 decks
19%synergy
Death Pits of Rath
16%inclusion122 decks753 decks
16%synergy
Agent of the Shadow Thieves
16%inclusion117 decks753 decks
15%synergy
Reconnaissance
15%inclusion113 decks753 decks
4%synergy
Black Market
15%inclusion111 decks753 decks
9%synergy
Revel in Riches
13%inclusion100 decks753 decks
7%synergy
Eternal Thirst
12%inclusion88 decks753 decks
11%synergy
Forge Anew
10%inclusion75 decks753 decks
8%synergy
Black Market Connections
8.6%inclusion65 decks753 decks
-7%synergy
Nowhere to Run
8.6%inclusion55 decks640 decks
8%synergy
Sigarda's Aid
7.7%inclusion58 decks753 decks
5%synergy
Kaya's Ghostform
7.7%inclusion58 decks753 decks
6%synergy
Grave Betrayal
7.3%inclusion55 decks753 decks
7%synergy
Glasswing Grace
6.9%inclusion47 decks685 decks
5%synergy
Life Insurance
5.8%inclusion44 decks753 decks
3%synergy
Feast of the Victorious Dead
5.7%inclusion43 decks753 decks
5%synergy
Gift of Immortality
5.4%inclusion41 decks753 decks
4%synergy
Planeswalkers
Kaya, Geist Hunter
8.9%inclusion67 decks753 decks
5%synergy
Vraska, Betrayal's Sting
8.5%inclusion64 decks753 decks
8%synergy
Dihada, Binder of Wills
7.2%inclusion54 decks753 decks
3%synergy
Utility Lands
Vault of the Archangel
54%inclusion403 decks753 decks
31%synergy
Rogue's Passage
52%inclusion395 decks753 decks
29%synergy
Bojuka Bog
36%inclusion270 decks753 decks
5%synergy
Arcane Lighthouse
27%inclusion207 decks753 decks
26%synergy
Karn's Bastion
25%inclusion185 decks753 decks
24%synergy
Detection Tower
24%inclusion184 decks753 decks
24%synergy
Axgard Armory
16%inclusion123 decks753 decks
14%synergy
Sunhome, Fortress of the Legion
10%inclusion79 decks753 decks
7%synergy
Buried Ruin
10%inclusion72 decks753 decks
6%synergy
Temple of the False God
7.8%inclusion59 decks753 decks
2%synergy
Reliquary Tower
7.6%inclusion57 decks753 decks
-8%synergy
Shizo, Death's Storehouse
5.8%inclusion44 decks753 decks
-1%synergy
Mana Artifacts
Arcane Signet
87%inclusion655 decks753 decks
1%synergy
Sol Ring
80%inclusion599 decks753 decks
-9%synergy
Patriar's Seal
58%inclusion440 decks753 decks
56%synergy
Orzhov Signet
52%inclusion395 decks753 decks
21%synergy
Rakdos Signet
49%inclusion370 decks753 decks
19%synergy
Boros Signet
45%inclusion342 decks753 decks
17%synergy
Talisman of Conviction
32%inclusion238 decks753 decks
-10%synergy
Talisman of Hierarchy
31%inclusion236 decks753 decks
-10%synergy
Talisman of Indulgence
25%inclusion188 decks753 decks
-12%synergy
Fellwar Stone
24%inclusion181 decks753 decks
-4%synergy
Bounty Board
22%inclusion163 decks726 decks
20%synergy
Commander's Sphere
22%inclusion164 decks753 decks
7%synergy
Bandit's Haul
12%inclusion88 decks730 decks
11%synergy
Aetheric Amplifier
11%inclusion46 decks410 decks
11%synergy
Chromatic Lantern
7.7%inclusion58 decks753 decks
-4%synergy
Mardu Banner
7.0%inclusion53 decks753 decks
4%synergy
Savai Crystal
6.8%inclusion51 decks753 decks
5%synergy
Mind Stone
6.2%inclusion47 decks753 decks
-2%synergy
Staff of Compleation
6.0%inclusion45 decks753 decks
6%synergy
Lands
Swamp
99%inclusion743 decks753 decks
3%synergy
Plains
99%inclusion742 decks753 decks
3%synergy
Mountain
98%inclusion738 decks753 decks
4%synergy
Command Tower
93%inclusion699 decks753 decks
0%synergy
Nomad Outpost
75%inclusion568 decks753 decks
17%synergy
Exotic Orchard
62%inclusion469 decks753 decks
10%synergy
Clifftop Retreat
49%inclusion369 decks753 decks
-2%synergy
Isolated Chapel
48%inclusion364 decks753 decks
-4%synergy
Dragonskull Summit
48%inclusion362 decks753 decks
-4%synergy
Smoldering Marsh
44%inclusion330 decks753 decks
7%synergy
Caves of Koilos
43%inclusion324 decks753 decks
4%synergy
Battlefield Forge
42%inclusion318 decks753 decks
2%synergy
Evolving Wilds
39%inclusion290 decks753 decks
12%synergy
Savai Triome
37%inclusion279 decks753 decks
-1%synergy
Forbidden Orchard
34%inclusion256 decks753 decks
31%synergy
Shattered Landscape
31%inclusion213 decks679 decks
12%synergy
Temple of Silence
28%inclusion213 decks753 decks
5%synergy
Path of Ancestry
28%inclusion212 decks753 decks
-10%synergy
Godless Shrine
28%inclusion212 decks753 decks
-19%synergy
Vault of Champions
28%inclusion211 decks753 decks
-5%synergy
Orzhov Basilica
27%inclusion204 decks753 decks
13%synergy
Spectator Seating
27%inclusion201 decks753 decks
-5%synergy
Blood Crypt
27%inclusion200 decks753 decks
-17%synergy
Sacred Foundry
26%inclusion199 decks753 decks
-18%synergy
Temple of Triumph
26%inclusion198 decks753 decks
4%synergy
Luxury Suite
26%inclusion194 decks753 decks
-6%synergy
Terramorphic Expanse
25%inclusion191 decks753 decks
6%synergy
Rakdos Carnarium
25%inclusion190 decks753 decks
13%synergy
Boros Garrison
24%inclusion184 decks753 decks
12%synergy
Sulfurous Springs
22%inclusion165 decks753 decks
-6%synergy
Temple of Malice
22%inclusion164 decks753 decks
5%synergy
Myriad Landscape
20%inclusion148 decks753 decks
8%synergy
Sundown Pass
20%inclusion147 decks753 decks
-1%synergy
Shadowblood Ridge
18%inclusion138 decks753 decks
3%synergy
Shattered Sanctum
18%inclusion136 decks753 decks
-6%synergy
Haunted Ridge
18%inclusion133 decks753 decks
-2%synergy
Tainted Field
16%inclusion118 decks753 decks
4%synergy
Marsh Flats
15%inclusion115 decks753 decks
-16%synergy
Arid Mesa
14%inclusion105 decks753 decks
-17%synergy
Bloodstained Mire
14%inclusion104 decks753 decks
-19%synergy
Rugged Prairie
13%inclusion96 decks753 decks
-4%synergy
Fetid Heath
13%inclusion95 decks753 decks
-8%synergy
Foreboding Ruins
12%inclusion90 decks753 decks
1%synergy
Shineshadow Snarl
11%inclusion80 decks753 decks
1%synergy
Furycalm Snarl
10%inclusion79 decks753 decks
1%synergy
Bloodfell Caves
10%inclusion76 decks753 decks
1%synergy
Scoured Barrens
9.4%inclusion71 decks753 decks
0%synergy
Tainted Peak
8.2%inclusion62 decks753 decks
-2%synergy
Wind-Scarred Crag
8.1%inclusion61 decks753 decks
0%synergy
Malakir Rebirth
8.1%inclusion61 decks753 decks
3%synergy
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