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Average Deck for Kelsien, the Plague - Budget Optimized
Alternate Names:
Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor
Kelsien, the Plague
Rank #421
10decks

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.

Nov 14, 2025
Fire and Ice: Which Cards are Hot and Cold for Nov. 14?
Let's see which cards are heating up and cooling down for Kelsien and Aminatou, the Fateshifter, on this week's Fire and Ice.
Average Decklist
- 1 Kelsien, the PlagueKelsien, the Plague
- 1 Agent of the Shadow ThievesAgent of the Shadow Thieves
- 1 Akiri, Fearless VoyagerAkiri, Fearless Voyager
- 1 Anguished UnmakingAnguished Unmaking
- 1 Arcane LighthouseArcane Lighthouse
- 1 Arcane SignetArcane Signet
- 1 Basilisk CollarBasilisk Collar
- 1 Battlefield ForgeBattlefield Forge
- 1 Bojuka BogBojuka Bog
- 1 Boros CharmBoros Charm
- 1 Boros SignetBoros Signet
- 1 Caves of KoilosCaves of Koilos
- 1 Champion's HelmChampion's Helm
- 1 Chandra's IgnitionChandra's Ignition
- 1 Clifftop RetreatClifftop Retreat
- 1 Command TowerCommand Tower
- 1 Crackling DoomCrackling Doom
- 1 Dark RitualDark Ritual
- 1 DesparkDespark
- 1 Diabolic TutorDiabolic Tutor
- 1 DrumbellowerDrumbellower
- 1 Eivor, Battle-ReadyEivor, Battle-Ready
- 1 Evolving WildsEvolving Wilds
- 1 Exotic OrchardExotic Orchard
- 1 Fabled PassageFabled Passage
- 1 Falthis, Shadowcat FamiliarFalthis, Shadowcat Familiar
- 1 Fellwar StoneFellwar Stone
- 1 Fighter ClassFighter Class
- 1 General's EnforcerGeneral's Enforcer
- 1 Generous GiftGenerous Gift
- 1 Gift of DoomGift of Doom
- 1 Goblin SharpshooterGoblin Sharpshooter
- 1 Gorgon FlailGorgon Flail
- 1 Gorgon's HeadGorgon's Head
- 1 Humble DefectorHumble Defector
- 1 Illusionist's BracersIllusionist's Bracers
- 1 Karlach, Fury of AvernusKarlach, Fury of Avernus
- 1 Magewright's StoneMagewright's Stone
- 1 Mari, the Killing QuillMari, the Killing Quill
- 1 Minthara, Merciless SoulMinthara, Merciless Soul
- 1 Morbid OpportunistMorbid Opportunist
- 1 MortifyMortify
- 1 Mother of RunesMother of Runes
- 6 MountainMountain
- 1 Mythos of SnapdaxMythos of Snapdax
- 1 Nomad OutpostNomad Outpost
- 1 Open the ArmoryOpen the Armory
- 1 Orzhov BasilicaOrzhov Basilica
- 1 Orzhov SignetOrzhov Signet
- 1 Otharri, Suns' GloryOtharri, Suns' Glory
- 1 Painful TruthsPainful Truths
- 1 Patriar's SealPatriar's Seal
- 7 PlainsPlains
- 1 Puresteel PaladinPuresteel Paladin
- 1 Qarsi RevenantQarsi Revenant
- 1 Quietus SpikeQuietus Spike
- 1 Rakdos SignetRakdos Signet
- 1 ReconnaissanceReconnaissance
- 1 Rogue's PassageRogue's Passage
- 1 Ruinous UltimatumRuinous Ultimatum
- 1 Rune of MortalityRune of Mortality
- 1 Shadowblood RidgeShadowblood Ridge
- 1 Shay CormacShay Cormac
- 1 Sign in BloodSign in Blood
- 1 Sol RingSol Ring
- 1 Spectator SeatingSpectator Seating
- 1 Steelshaper's GiftSteelshaper's Gift
- 1 Sting, the Glinting DaggerSting, the Glinting Dagger
- 1 Stroke of MidnightStroke of Midnight
- 1 Sulfurous SpringsSulfurous Springs
- 7 SwampSwamp
- 1 Swiftfoot BootsSwiftfoot Boots
- 1 Swords to PlowsharesSwords to Plowshares
- 1 Taii Wakeen, Perfect ShotTaii Wakeen, Perfect Shot
- 1 Talisman of ConvictionTalisman of Conviction
- 1 Talisman of HierarchyTalisman of Hierarchy
- 1 Talisman of IndulgenceTalisman of Indulgence
- 1 Thornbite StaffThornbite Staff
- 1 Vault of the ArchangelVault of the Archangel
- 1 Void BeckonerVoid Beckoner
- 1 Vorpal SwordVorpal Sword
- 1 Wear // TearWear // Tear
- 1 White Plume AdventurerWhite Plume Adventurer
Akiri, Fearless Voyager
Akiri, Fearless Voyager
Drumbellower
Drumbellower
Eivor, Battle-Ready
Eivor, Battle-Ready
Falthis, Shadowcat Familiar
Falthis, Shadowcat Familiar
General's Enforcer
General's Enforcer
Goblin Sharpshooter
Goblin Sharpshooter
Humble Defector
Humble Defector
Karlach, Fury of Avernus
Karlach, Fury of Avernus
Mari, the Killing Quill
Mari, the Killing Quill
Minthara, Merciless Soul
Minthara, Merciless Soul
Morbid Opportunist
Morbid Opportunist
Mother of Runes
Mother of Runes
Otharri, Suns' Glory
Otharri, Suns' Glory
Puresteel Paladin
Puresteel Paladin
Qarsi Revenant
Qarsi Revenant
Shay Cormac
Shay Cormac
Taii Wakeen, Perfect Shot
Taii Wakeen, Perfect Shot
Void Beckoner
Void Beckoner
White Plume Adventurer
White Plume Adventurer
Instants (10)
Anguished Unmaking
Anguished Unmaking
Boros Charm
Boros Charm
Crackling Doom
Crackling Doom
Dark Ritual
Dark Ritual
Despark
Despark
Generous Gift
Generous Gift
Mortify
Mortify
Stroke of Midnight
Stroke of Midnight
Swords to Plowshares
Swords to Plowshares
Wear // Tear
Wear // Tear
Sorceries (8)
Chandra's Ignition
Chandra's Ignition
Diabolic Tutor
Diabolic Tutor
Mythos of Snapdax
Mythos of Snapdax
Open the Armory
Open the Armory
Painful Truths
Painful Truths
Ruinous Ultimatum
Ruinous Ultimatum
Sign in Blood
Sign in Blood
Steelshaper's Gift
Steelshaper's Gift
Artifacts (21)
Arcane Signet
Arcane Signet
Basilisk Collar
Basilisk Collar
Boros Signet
Boros Signet
Champion's Helm
Champion's Helm
Fellwar Stone
Fellwar Stone
Gorgon Flail
Gorgon Flail
Gorgon's Head
Gorgon's Head
Illusionist's Bracers
Illusionist's Bracers
Magewright's Stone
Magewright's Stone
Orzhov Signet
Orzhov Signet
Patriar's Seal
Patriar's Seal
Quietus Spike
Quietus Spike
Rakdos Signet
Rakdos Signet
Sol Ring
Sol Ring
Sting, the Glinting Dagger
Sting, the Glinting Dagger
Swiftfoot Boots
Swiftfoot Boots
Talisman of Conviction
Talisman of Conviction
Talisman of Hierarchy
Talisman of Hierarchy
Talisman of Indulgence
Talisman of Indulgence
Thornbite Staff
Thornbite Staff
Vorpal Sword
Vorpal Sword
Enchantments (5)
Agent of the Shadow Thieves
Agent of the Shadow Thieves
Fighter Class
Fighter Class
Gift of Doom
Gift of Doom
Reconnaissance
Reconnaissance
Rune of Mortality
Rune of Mortality
Lands (16)
Arcane Lighthouse
Arcane Lighthouse
Battlefield Forge
Battlefield Forge
Bojuka Bog
Bojuka Bog
Caves of Koilos
Caves of Koilos
Clifftop Retreat
Clifftop Retreat
Command Tower
Command Tower
Evolving Wilds
Evolving Wilds
Exotic Orchard
Exotic Orchard
Fabled Passage
Fabled Passage
Nomad Outpost
Nomad Outpost
Orzhov Basilica
Orzhov Basilica
Rogue's Passage
Rogue's Passage
Shadowblood Ridge
Shadowblood Ridge
Spectator Seating
Spectator Seating
Sulfurous Springs
Sulfurous Springs
Vault of the Archangel
Vault of the Archangel
Basics (3)
Mountain
6 Mountains
Plains
7 Plains
Swamp
7 Swamps