Kelsien, the Plague (Commander) - Budget Treasure

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
Morbid Opportunist
100%inclusion3 decks3 decks
82%synergy
Mari, the Killing Quill
100%inclusion3 decks3 decks
94%synergy
Changeling Outcast
100%inclusion3 decks3 decks
97%synergy
Vihaan, Goldwaker
67%inclusion2 decks3 decks
63%synergy
Ankle Shanker
67%inclusion2 decks3 decks
64%synergy
Angrath's Marauders
67%inclusion2 decks3 decks
66%synergy
Olivia, Opulent Outlaw
67%inclusion2 decks3 decks
63%synergy
Termination Facilitator
67%inclusion2 decks3 decks
65%synergy
Magda, the Hoardmaster
67%inclusion2 decks3 decks
65%synergy
General's Enforcer
67%inclusion2 decks3 decks
59%synergy
Shay Cormac
67%inclusion2 decks3 decks
64%synergy
Odric, Master Tactician
67%inclusion2 decks3 decks
65%synergy
Otharri, Suns' Glory
67%inclusion2 decks3 decks
61%synergy
Breena, the Demagogue
67%inclusion2 decks3 decks
59%synergy
Queen Marchesa
67%inclusion2 decks3 decks
61%synergy
Minthara, Merciless Soul
67%inclusion2 decks3 decks
65%synergy
Maha, Its Feathers Night
50%inclusion1 decks2 decks
49%synergy
Marvin, Murderous Mimic
50%inclusion1 decks2 decks
49%synergy
Iridescent Vinelasher
50%inclusion1 decks2 decks
50%synergy
Unstoppable Slasher
50%inclusion1 decks2 decks
48%synergy
Razorkin Needlehead
50%inclusion1 decks2 decks
49%synergy
Ertha Jo, Frontier Mentor
33%inclusion1 decks3 decks
33%synergy
Extus, Oriq Overlord
33%inclusion1 decks3 decks
33%synergy
Servant of the Stinger
33%inclusion1 decks3 decks
33%synergy
Valduk, Keeper of the Flame
33%inclusion1 decks3 decks
33%synergy
Humble Defector
33%inclusion1 decks3 decks
31%synergy
Taii Wakeen, Perfect Shot
33%inclusion1 decks3 decks
33%synergy
Astor, Bearer of Blades
33%inclusion1 decks3 decks
33%synergy
Hoard Robber
33%inclusion1 decks3 decks
33%synergy
Mahadi, Emporium Master
33%inclusion1 decks3 decks
25%synergy
Taranika, Akroan Veteran
33%inclusion1 decks3 decks
33%synergy
Cavalry Pegasus
33%inclusion1 decks3 decks
33%synergy
Butch DeLoria, Tunnel Snake
33%inclusion1 decks3 decks
33%synergy
Captain Lannery Storm
33%inclusion1 decks3 decks
25%synergy
Deathbringer Thoctar
33%inclusion1 decks3 decks
33%synergy
Fain, the Broker
33%inclusion1 decks3 decks
32%synergy
Nighthawk Scavenger
33%inclusion1 decks3 decks
29%synergy
Assault Intercessor
33%inclusion1 decks3 decks
33%synergy
Ruthless Technomancer
33%inclusion1 decks3 decks
32%synergy
Kalain, Reclusive Painter
33%inclusion1 decks3 decks
32%synergy
White Plume Adventurer
33%inclusion1 decks3 decks
32%synergy
Audacious Thief
33%inclusion1 decks3 decks
31%synergy
Harvester of Souls
33%inclusion1 decks3 decks
30%synergy
Veronica, Dissident Scribe
33%inclusion1 decks3 decks
33%synergy
Angelic Sell-Sword
33%inclusion1 decks3 decks
32%synergy
Varragoth, Bloodsky Sire
33%inclusion1 decks3 decks
31%synergy
Omenport Vigilante
33%inclusion1 decks3 decks
33%synergy
Zhentarim Bandit
33%inclusion1 decks3 decks
33%synergy
Daxos the Returned
33%inclusion1 decks3 decks
33%synergy
Kellogg, Dangerous Mind
33%inclusion1 decks3 decks
24%synergy
Instants
Swords to Plowshares
67%inclusion2 decks3 decks
5%synergy
Dire Tactics
33%inclusion1 decks3 decks
31%synergy
Thrill of Possibility
33%inclusion1 decks3 decks
26%synergy
Boros Charm
33%inclusion1 decks3 decks
4%synergy
Not Dead After All
33%inclusion1 decks3 decks
32%synergy
Deadly Dispute
33%inclusion1 decks3 decks
11%synergy
Flawless Maneuver
33%inclusion1 decks3 decks
19%synergy
Terminate
33%inclusion1 decks3 decks
21%synergy
Bovine Intervention
33%inclusion1 decks3 decks
33%synergy
Final Showdown
33%inclusion1 decks3 decks
32%synergy
Murder
33%inclusion1 decks3 decks
31%synergy
Dead Before Sunrise
33%inclusion1 decks3 decks
32%synergy
Offer Immortality
33%inclusion1 decks3 decks
32%synergy
Curtains' Call
33%inclusion1 decks3 decks
33%synergy
Path to Exile
33%inclusion1 decks3 decks
-13%synergy
Heliod's Intervention
33%inclusion1 decks3 decks
31%synergy
Mirrodin Avenged
33%inclusion1 decks3 decks
33%synergy
Crackling Doom
33%inclusion1 decks3 decks
16%synergy
Generous Gift
33%inclusion1 decks3 decks
16%synergy
Sorceries
Seize the Spotlight
67%inclusion2 decks3 decks
64%synergy
Painful Truths
67%inclusion2 decks3 decks
59%synergy
Council's Judgment
67%inclusion2 decks3 decks
65%synergy
Requisition Raid
33%inclusion1 decks3 decks
31%synergy
Diabolic Tutor
33%inclusion1 decks3 decks
27%synergy
Open the Armory
33%inclusion1 decks3 decks
29%synergy
Feed the Swarm
33%inclusion1 decks3 decks
28%synergy
Seize the Spoils
33%inclusion1 decks3 decks
31%synergy
Read the Bones
33%inclusion1 decks3 decks
25%synergy
Blood Money
33%inclusion1 decks3 decks
30%synergy
Tragic Arrogance
33%inclusion1 decks3 decks
31%synergy
Molten Duplication
33%inclusion1 decks3 decks
31%synergy
Cleansing Nova
33%inclusion1 decks3 decks
31%synergy
Damn
33%inclusion1 decks3 decks
16%synergy
Sign in Blood
33%inclusion1 decks3 decks
25%synergy
Back in Town
33%inclusion1 decks3 decks
31%synergy
Covetous Elegy
33%inclusion1 decks3 decks
33%synergy
Utility Artifacts
Basilisk Collar
100%inclusion3 decks3 decks
96%synergy
Gorgon's Head
67%inclusion2 decks3 decks
65%synergy
Vorpal Sword
67%inclusion2 decks3 decks
65%synergy
Trailblazer's Boots
67%inclusion2 decks3 decks
65%synergy
Sting, the Glinting Dagger
67%inclusion2 decks3 decks
65%synergy
Hunter's Blowgun
67%inclusion2 decks3 decks
66%synergy
Lightning Greaves
67%inclusion2 decks3 decks
32%synergy
Hemlock Vial
33%inclusion1 decks3 decks
33%synergy
Quietus Spike
33%inclusion1 decks3 decks
32%synergy
Illusionist's Bracers
33%inclusion1 decks3 decks
32%synergy
Masterwork of Ingenuity
33%inclusion1 decks3 decks
32%synergy
Shadowspear
33%inclusion1 decks3 decks
29%synergy
Whispersilk Cloak
33%inclusion1 decks3 decks
28%synergy
Reaper's Talisman
33%inclusion1 decks3 decks
33%synergy
Champion's Helm
33%inclusion1 decks3 decks
32%synergy
Idol of Oblivion
33%inclusion1 decks3 decks
20%synergy
Swiftfoot Boots
33%inclusion1 decks3 decks
2%synergy
Sword of Feast and Famine
33%inclusion1 decks3 decks
30%synergy
The Spear of Leonidas
33%inclusion1 decks3 decks
32%synergy
Mjölnir, Storm Hammer
33%inclusion1 decks3 decks
33%synergy
Enchantments
Rune of Mortality
67%inclusion2 decks3 decks
65%synergy
Artist's Talent
50%inclusion1 decks2 decks
50%synergy
Discreet Retreat
33%inclusion1 decks3 decks
32%synergy
Gift of Doom
33%inclusion1 decks3 decks
32%synergy
Forging the Tyrite Sword
33%inclusion1 decks3 decks
33%synergy
Forge Anew
33%inclusion1 decks3 decks
31%synergy
We Ride at Dawn
33%inclusion1 decks3 decks
32%synergy
Fighter Class
33%inclusion1 decks3 decks
31%synergy
Shiny Impetus
33%inclusion1 decks3 decks
30%synergy
Death Pits of Rath
33%inclusion1 decks3 decks
33%synergy
Curse of Opulence
33%inclusion1 decks3 decks
27%synergy
At Knifepoint
33%inclusion1 decks3 decks
32%synergy
Revel in Riches
33%inclusion1 decks3 decks
27%synergy
Haunted Library
33%inclusion1 decks3 decks
33%synergy
Phyrexian Arena
33%inclusion1 decks3 decks
15%synergy
Spiteful Banditry
33%inclusion1 decks3 decks
31%synergy
Planeswalkers
Quintorius Kand
33%inclusion1 decks3 decks
32%synergy
Nahiri, the Harbinger
33%inclusion1 decks3 decks
33%synergy
Utility Lands
Bojuka Bog
100%inclusion3 decks3 decks
69%synergy
Vault of the Archangel
100%inclusion3 decks3 decks
77%synergy
Rogue's Passage
100%inclusion3 decks3 decks
76%synergy
Command Beacon
67%inclusion2 decks3 decks
61%synergy
Detection Tower
33%inclusion1 decks3 decks
33%synergy
Sunhome, Fortress of the Legion
33%inclusion1 decks3 decks
30%synergy
Temple of the False God
33%inclusion1 decks3 decks
27%synergy
Bonders' Enclave
33%inclusion1 decks3 decks
32%synergy
Mana Artifacts
Arcane Signet
100%inclusion3 decks3 decks
14%synergy
Sol Ring
100%inclusion3 decks3 decks
12%synergy
Bandit's Haul
67%inclusion2 decks3 decks
66%synergy
Orzhov Signet
67%inclusion2 decks3 decks
36%synergy
Talisman of Indulgence
33%inclusion1 decks3 decks
-4%synergy
Rakdos Signet
33%inclusion1 decks3 decks
5%synergy
Chromatic Lantern
33%inclusion1 decks3 decks
23%synergy
Talisman of Conviction
33%inclusion1 decks3 decks
-9%synergy
Fellwar Stone
33%inclusion1 decks3 decks
5%synergy
Patriar's Seal
33%inclusion1 decks3 decks
31%synergy
Talisman of Hierarchy
33%inclusion1 decks3 decks
-8%synergy
Savai Crystal
33%inclusion1 decks3 decks
32%synergy
Bounty Board
33%inclusion1 decks3 decks
31%synergy
Lands
Command Tower
100%inclusion3 decks3 decks
8%synergy
Exotic Orchard
100%inclusion3 decks3 decks
47%synergy
Caves of Koilos
100%inclusion3 decks3 decks
61%synergy
Swamp
100%inclusion3 decks3 decks
5%synergy
Dragonskull Summit
100%inclusion3 decks3 decks
47%synergy
Temple of Triumph
100%inclusion3 decks3 decks
79%synergy
Temple of Malice
100%inclusion3 decks3 decks
84%synergy
Isolated Chapel
100%inclusion3 decks3 decks
46%synergy
Mountain
100%inclusion3 decks3 decks
6%synergy
Path of Ancestry
100%inclusion3 decks3 decks
62%synergy
Plains
100%inclusion3 decks3 decks
5%synergy
Temple of Silence
100%inclusion3 decks3 decks
78%synergy
Shadowblood Ridge
67%inclusion2 decks3 decks
51%synergy
Canyon Slough
67%inclusion2 decks3 decks
57%synergy
Smoldering Marsh
67%inclusion2 decks3 decks
30%synergy
Desolate Mire
67%inclusion2 decks3 decks
55%synergy
Fetid Heath
67%inclusion2 decks3 decks
45%synergy
Nomad Outpost
67%inclusion2 decks3 decks
9%synergy
Blackcleave Cliffs
67%inclusion2 decks3 decks
61%synergy
Battlefield Forge
67%inclusion2 decks3 decks
26%synergy
Rugged Prairie
67%inclusion2 decks3 decks
49%synergy
Demolition Field
67%inclusion2 decks3 decks
62%synergy
Tainted Peak
67%inclusion2 decks3 decks
57%synergy
Clifftop Retreat
67%inclusion2 decks3 decks
15%synergy
Sulfurous Springs
67%inclusion2 decks3 decks
38%synergy
Terramorphic Expanse
33%inclusion1 decks3 decks
15%synergy
Myriad Landscape
33%inclusion1 decks3 decks
22%synergy
Ash Barrens
33%inclusion1 decks3 decks
26%synergy
Furycalm Snarl
33%inclusion1 decks3 decks
24%synergy
Evolving Wilds
33%inclusion1 decks3 decks
8%synergy
Orzhov Basilica
33%inclusion1 decks3 decks
20%synergy
Shineshadow Snarl
33%inclusion1 decks3 decks
24%synergy