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Average Deck for Kelsien, the Plague - Budget Upgraded
Alternate Names:
Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor
Kelsien, the Plague
Rank #385
33decks

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 Arcane SignetArcane Signet
- 1 Archetype of FinalityArchetype of Finality
- 1 Aspect of GorgonAspect of Gorgon
- 1 At KnifepointAt Knifepoint
- 1 Basilisk CollarBasilisk Collar
- 1 Battlefield ForgeBattlefield Forge
- 1 Boros CharmBoros Charm
- 1 Boros SignetBoros Signet
- 1 Caves of KoilosCaves of Koilos
- 1 Chaos WarpChaos Warp
- 1 Clifftop RetreatClifftop Retreat
- 1 Command TowerCommand Tower
- 1 Crackling DoomCrackling Doom
- 1 Daxos the ReturnedDaxos the Returned
- 1 Dazzling Theater // Prop RoomDazzling Theater // Prop Room
- 1 Dragonskull SummitDragonskull Summit
- 1 DrumbellowerDrumbellower
- 1 Ertha Jo, Frontier MentorErtha Jo, Frontier Mentor
- 1 Evolving WildsEvolving Wilds
- 1 Exotic OrchardExotic Orchard
- 1 Falthis, Shadowcat FamiliarFalthis, Shadowcat Familiar
- 1 Fighter ClassFighter Class
- 1 FractureFracture
- 1 General's EnforcerGeneral's Enforcer
- 1 Generous GiftGenerous Gift
- 1 Gift of DoomGift of Doom
- 1 Gorgon FlailGorgon Flail
- 1 Gorgon's HeadGorgon's Head
- 1 Humble DefectorHumble Defector
- 1 Hunter's BlowgunHunter's Blowgun
- 1 Isolated ChapelIsolated Chapel
- 1 Kalemne, Disciple of IroasKalemne, Disciple of Iroas
- 1 Lae'zel, Vlaakith's ChampionLae'zel, Vlaakith's Champion
- 1 Legion LeadershipLegion Leadership
- 1 Magda, the HoardmasterMagda, the Hoardmaster
- 1 Maha, Its Feathers NightMaha, Its Feathers Night
- 1 Mari, the Killing QuillMari, the Killing Quill
- 1 Mathas, Fiend SeekerMathas, Fiend Seeker
- 1 Minthara, Merciless SoulMinthara, Merciless Soul
- 1 Mirrodin AvengedMirrodin Avenged
- 1 Morbid OpportunistMorbid Opportunist
- 7 MountainMountain
- 1 Mythos of SnapdaxMythos of Snapdax
- 1 Night's WhisperNight's Whisper
- 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 Path of AncestryPath of Ancestry
- 1 Patriar's SealPatriar's Seal
- 1 Phyrexian ArenaPhyrexian Arena
- 8 PlainsPlains
- 1 Queen MarchesaQueen Marchesa
- 1 Rakdos CarnariumRakdos Carnarium
- 1 Rakdos SignetRakdos Signet
- 1 Read the BonesRead the Bones
- 1 Rogue's PassageRogue's Passage
- 1 Ruinous UltimatumRuinous Ultimatum
- 1 Rune of MortalityRune of Mortality
- 1 Shattered LandscapeShattered Landscape
- 1 Shay CormacShay Cormac
- 1 Slaughter SpecialistSlaughter Specialist
- 1 Smoldering MarshSmoldering Marsh
- 1 Sol RingSol Ring
- 1 Sting, the Glinting DaggerSting, the Glinting Dagger
- 1 Stroke of MidnightStroke of Midnight
- 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 Termination FacilitatorTermination Facilitator
- 1 Thornbite StaffThornbite Staff
- 1 Vault of the ArchangelVault of the Archangel
- 1 Void BeckonerVoid Beckoner
- 1 Vorpal SwordVorpal Sword
- 1 White Plume AdventurerWhite Plume Adventurer
- 1 You Are Already DeadYou Are Already Dead
Archetype of Finality
Archetype of Finality
Daxos the Returned
Daxos the Returned
Drumbellower
Drumbellower
Ertha Jo, Frontier Mentor
Ertha Jo, Frontier Mentor
Falthis, Shadowcat Familiar
Falthis, Shadowcat Familiar
General's Enforcer
General's Enforcer
Humble Defector
Humble Defector
Kalemne, Disciple of Iroas
Kalemne, Disciple of Iroas
Lae'zel, Vlaakith's Champion
Lae'zel, Vlaakith's Champion
Magda, the Hoardmaster
Magda, the Hoardmaster
Maha, Its Feathers Night
Maha, Its Feathers Night
Mari, the Killing Quill
Mari, the Killing Quill
Mathas, Fiend Seeker
Mathas, Fiend Seeker
Minthara, Merciless Soul
Minthara, Merciless Soul
Morbid Opportunist
Morbid Opportunist
Otharri, Suns' Glory
Otharri, Suns' Glory
Queen Marchesa
Queen Marchesa
Shay Cormac
Shay Cormac
Slaughter Specialist
Slaughter Specialist
Taii Wakeen, Perfect Shot
Taii Wakeen, Perfect Shot
Termination Facilitator
Termination Facilitator
Void Beckoner
Void Beckoner
White Plume Adventurer
White Plume Adventurer
Instants (10)
Boros Charm
Boros Charm
Chaos Warp
Chaos Warp
Crackling Doom
Crackling Doom
Fracture
Fracture
Generous Gift
Generous Gift
Legion Leadership
Legion Leadership
Mirrodin Avenged
Mirrodin Avenged
Stroke of Midnight
Stroke of Midnight
Swords to Plowshares
Swords to Plowshares
You Are Already Dead
You Are Already Dead
Sorceries (6)
Mythos of Snapdax
Mythos of Snapdax
Night's Whisper
Night's Whisper
Open the Armory
Open the Armory
Painful Truths
Painful Truths
Read the Bones
Read the Bones
Ruinous Ultimatum
Ruinous Ultimatum
Artifacts (15)
Arcane Signet
Arcane Signet
Basilisk Collar
Basilisk Collar
Boros Signet
Boros Signet
Gorgon Flail
Gorgon Flail
Gorgon's Head
Gorgon's Head
Hunter's Blowgun
Hunter's Blowgun
Orzhov Signet
Orzhov Signet
Patriar's Seal
Patriar's Seal
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
Thornbite Staff
Thornbite Staff
Vorpal Sword
Vorpal Sword
Enchantments (7)
Aspect of Gorgon
Aspect of Gorgon
At Knifepoint
At Knifepoint
Dazzling Theater // Prop Room
Dazzling Theater // Prop Room
Fighter Class
Fighter Class
Gift of Doom
Gift of Doom
Phyrexian Arena
Phyrexian Arena
Rune of Mortality
Rune of Mortality
Lands (16)
Battlefield Forge
Battlefield Forge
Caves of Koilos
Caves of Koilos
Clifftop Retreat
Clifftop Retreat
Command Tower
Command Tower
Dragonskull Summit
Dragonskull Summit
Evolving Wilds
Evolving Wilds
Exotic Orchard
Exotic Orchard
Isolated Chapel
Isolated Chapel
Nomad Outpost
Nomad Outpost
Orzhov Basilica
Orzhov Basilica
Path of Ancestry
Path of Ancestry
Rakdos Carnarium
Rakdos Carnarium
Rogue's Passage
Rogue's Passage
Shattered Landscape
Shattered Landscape
Smoldering Marsh
Smoldering Marsh
Vault of the Archangel
Vault of the Archangel
Basics (3)
Mountain
7 Mountains
Plains
8 Plains
Swamp
7 Swamps