Average Deck for Kelsien, the Plague - Expensive Activated Abilities
Alternate Names:
Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor
Kelsien, the Plague
Rank #397
2decks

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 Ad NauseamAd Nauseam
- 1 Angel's GraceAngel's Grace
- 1 Arcane SignetArcane Signet
- 1 Arid MesaArid Mesa
- 1 Ashes of the AbhorrentAshes of the Abhorrent
- 1 BadlandsBadlands
- 1 Basilisk CollarBasilisk Collar
- 1 Blightstep PathwayBlightstep Pathway
- 1 Blood CryptBlood Crypt
- 1 Bloodstained MireBloodstained Mire
- 1 Bounty BoardBounty Board
- 1 Celestial ConvergenceCelestial Convergence
- 1 Chromatic LanternChromatic Lantern
- 1 Clifftop RetreatClifftop Retreat
- 1 Command TowerCommand Tower
- 1 Crown of GondorCrown of Gondor
- 1 Dawn CharmDawn Charm
- 1 Daxos the ReturnedDaxos the Returned
- 1 Debt to the DeathlessDebt to the Deathless
- 1 Decanter of Endless WaterDecanter of Endless Water
- 1 Deflecting SwatDeflecting Swat
- 1 Demonic TutorDemonic Tutor
- 1 Dockside ExtortionistDockside Extortionist
- 1 Emberwilde CaptainEmberwilde Captain
- 1 Enlightened TutorEnlightened Tutor
- 1 Ertha Jo, Frontier MentorErtha Jo, Frontier Mentor
- 1 Esper SentinelEsper Sentinel
- 1 Exquisite BloodExquisite Blood
- 1 Falthis, Shadowcat FamiliarFalthis, Shadowcat Familiar
- 1 Feast of the Victorious DeadFeast of the Victorious Dead
- 1 Felidar SovereignFelidar Sovereign
- 1 Fellwar StoneFellwar Stone
- 1 Fighter ClassFighter Class
- 1 Forbidden OrchardForbidden Orchard
- 1 Forge AnewForge Anew
- 1 Forth Eorlingas!Forth Eorlingas!
- 1 FractureFracture
- 1 General's EnforcerGeneral's Enforcer
- 1 Goblin SharpshooterGoblin Sharpshooter
- 1 Godless ShrineGodless Shrine
- 1 Grim TutorGrim Tutor
- 1 Haunted RidgeHaunted Ridge
- 1 Heliod, Sun-CrownedHeliod, Sun-Crowned
- 1 Hunter's BlowgunHunter's Blowgun
- 1 Isolated ChapelIsolated Chapel
- 1 Karn's BastionKarn's Bastion
- 1 Lae'zel, Vlaakith's ChampionLae'zel, Vlaakith's Champion
- 1 Lapse of CertaintyLapse of Certainty
- 1 Lightning GreavesLightning Greaves
- 1 Luxury SuiteLuxury Suite
- 1 Magewright's StoneMagewright's Stone
- 1 Mana TitheMana Tithe
- 1 Mari, the Killing QuillMari, the Killing Quill
- 1 Marsh FlatsMarsh Flats
- 1 Minthara, Merciless SoulMinthara, Merciless Soul
- 1 Mother of RunesMother of Runes
- 2 MountainMountain
- 1 Mox AmberMox Amber
- 1 Mythos of SnapdaxMythos of Snapdax
- 1 Needleverge PathwayNeedleverge Pathway
- 1 Offer ImmortalityOffer Immortality
- 1 Open the ArmoryOpen the Armory
- 1 Otharri, Suns' GloryOtharri, Suns' Glory
- 2 PlainsPlains
- 1 PlateauPlateau
- 1 Plaza of HeroesPlaza of Heroes
- 1 Queen MarchesaQueen Marchesa
- 1 Rakdos CharmRakdos Charm
- 1 Rune of MortalityRune of Mortality
- 1 Sacred FoundrySacred Foundry
- 1 Sanguine BondSanguine Bond
- 1 Sanguine SacramentSanguine Sacrament
- 1 Savai TriomeSavai Triome
- 1 Scroll RackScroll Rack
- 1 ScrublandScrubland
- 1 ShadowspearShadowspear
- 1 Shattered LandscapeShattered Landscape
- 1 Shattered SanctumShattered Sanctum
- 1 Shay CormacShay Cormac
- 1 Sigarda's AidSigarda's Aid
- 1 Smoke BombSmoke Bomb
- 1 Smothering TitheSmothering Tithe
- 1 Sol RingSol Ring
- 2 SwampSwamp
- 1 Swiftfoot BootsSwiftfoot Boots
- 1 Swords to PlowsharesSwords to Plowshares
- 1 Taii Wakeen, Perfect ShotTaii Wakeen, Perfect Shot
- 1 Termination FacilitatorTermination Facilitator
- 1 Thornbite StaffThornbite Staff
- 1 Throne of the High CityThrone of the High City
- 1 Touch of MoongloveTouch of Moonglove
- 1 Urborg, Tomb of YawgmothUrborg, Tomb of Yawgmoth
- 1 Vorpal SwordVorpal Sword
- 1 White Plume AdventurerWhite Plume Adventurer
- 1 Witch EnchanterWitch Enchanter
- 1 You Are Already DeadYou Are Already Dead
Daxos the Returned
Daxos the Returned
Dockside Extortionist
Dockside Extortionist
Emberwilde Captain
Emberwilde Captain
Ertha Jo, Frontier Mentor
Ertha Jo, Frontier Mentor
Esper Sentinel
Esper Sentinel
Falthis, Shadowcat Familiar
Falthis, Shadowcat Familiar
Felidar Sovereign
Felidar Sovereign
General's Enforcer
General's Enforcer
Goblin Sharpshooter
Goblin Sharpshooter
Heliod, Sun-Crowned
Heliod, Sun-Crowned
Lae'zel, Vlaakith's Champion
Lae'zel, Vlaakith's Champion
Mari, the Killing Quill
Mari, the Killing Quill
Minthara, Merciless Soul
Minthara, Merciless Soul
Mother of Runes
Mother of Runes
Otharri, Suns' Glory
Otharri, Suns' Glory
Queen Marchesa
Queen Marchesa
Shay Cormac
Shay Cormac
Taii Wakeen, Perfect Shot
Taii Wakeen, Perfect Shot
Termination Facilitator
Termination Facilitator
White Plume Adventurer
White Plume Adventurer
Witch Enchanter
Witch Enchanter
Instants (14)
Ad Nauseam
Ad Nauseam
Angel's Grace
Angel's Grace
Dawn Charm
Dawn Charm
Deflecting Swat
Deflecting Swat
Enlightened Tutor
Enlightened Tutor
Fracture
Fracture
Lapse of Certainty
Lapse of Certainty
Mana Tithe
Mana Tithe
Offer Immortality
Offer Immortality
Rakdos Charm
Rakdos Charm
Sanguine Sacrament
Sanguine Sacrament
Swords to Plowshares
Swords to Plowshares
Touch of Moonglove
Touch of Moonglove
You Are Already Dead
You Are Already Dead
Sorceries (6)
Debt to the Deathless
Debt to the Deathless
Demonic Tutor
Demonic Tutor
Forth Eorlingas!
Forth Eorlingas!
Grim Tutor
Grim Tutor
Mythos of Snapdax
Mythos of Snapdax
Open the Armory
Open the Armory
Artifacts (18)
Arcane Signet
Arcane Signet
Basilisk Collar
Basilisk Collar
Bounty Board
Bounty Board
Chromatic Lantern
Chromatic Lantern
Crown of Gondor
Crown of Gondor
Decanter of Endless Water
Decanter of Endless Water
Fellwar Stone
Fellwar Stone
Hunter's Blowgun
Hunter's Blowgun
Lightning Greaves
Lightning Greaves
Magewright's Stone
Magewright's Stone
Mox Amber
Mox Amber
Scroll Rack
Scroll Rack
Shadowspear
Shadowspear
Smoke Bomb
Smoke Bomb
Sol Ring
Sol Ring
Swiftfoot Boots
Swiftfoot Boots
Thornbite Staff
Thornbite Staff
Vorpal Sword
Vorpal Sword
Enchantments (10)
Ashes of the Abhorrent
Ashes of the Abhorrent
Celestial Convergence
Celestial Convergence
Exquisite Blood
Exquisite Blood
Feast of the Victorious Dead
Feast of the Victorious Dead
Fighter Class
Fighter Class
Forge Anew
Forge Anew
Rune of Mortality
Rune of Mortality
Sanguine Bond
Sanguine Bond
Sigarda's Aid
Sigarda's Aid
Smothering Tithe
Smothering Tithe
Lands (24)
Arid Mesa
Arid Mesa
Badlands
Badlands
Blightstep Pathway
Blightstep Pathway
Blood Crypt
Blood Crypt
Bloodstained Mire
Bloodstained Mire
Clifftop Retreat
Clifftop Retreat
Command Tower
Command Tower
Forbidden Orchard
Forbidden Orchard
Godless Shrine
Godless Shrine
Haunted Ridge
Haunted Ridge
Isolated Chapel
Isolated Chapel
Karn's Bastion
Karn's Bastion
Luxury Suite
Luxury Suite
Marsh Flats
Marsh Flats
Needleverge Pathway
Needleverge Pathway
Plateau
Plateau
Plaza of Heroes
Plaza of Heroes
Sacred Foundry
Sacred Foundry
Savai Triome
Savai Triome
Scrubland
Scrubland
Shattered Landscape
Shattered Landscape
Shattered Sanctum
Shattered Sanctum
Throne of the High City
Throne of the High City
Urborg, Tomb of Yawgmoth
Urborg, Tomb of Yawgmoth
Basics (3)
Mountain
2 Mountains
Plains
2 Plains
Swamp
2 Swamps