Average Deck for Altaïr, Brotherhood Mentor - Budget Obosh Companion
Original Name:
Kelsien, the PlagueKelsien, the Plague
Altaïr, Brotherhood Mentor
Rank #386
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 Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor
- 1 Alchemist's GiftAlchemist's Gift
- 1 Alesha, Who Smiles at DeathAlesha, Who Smiles at Death
- 1 Angrath's MaraudersAngrath's Marauders
- 1 Aspect of GorgonAspect of Gorgon
- 1 BedevilBedevil
- 1 Blood CultistBlood Cultist
- 1 Bloodfell CavesBloodfell Caves
- 1 Boros GarrisonBoros Garrison
- 1 Boros LocketBoros Locket
- 1 Boros ReckonerBoros Reckoner
- 1 Brash TaunterBrash Taunter
- 1 Burnished HartBurnished Hart
- 1 Call of the Death-DwellerCall of the Death-Dweller
- 1 Chaos WarpChaos Warp
- 1 Clackbridge TrollClackbridge Troll
- 1 Coat with VenomCoat with Venom
- 1 Command TowerCommand Tower
- 1 Commander's SphereCommander's Sphere
- 1 Court of IreCourt of Ire
- 1 Crackling DoomCrackling Doom
- 1 Cunning SparkmageCunning Sparkmage
- 1 Darksteel IngotDarksteel Ingot
- 1 Deafening ClarionDeafening Clarion
- 1 Duelist's HeritageDuelist's Heritage
- 1 Evolving WildsEvolving Wilds
- 1 Exotic OrchardExotic Orchard
- 1 Faithless LootingFaithless Looting
- 1 Falthis, Shadowcat FamiliarFalthis, Shadowcat Familiar
- 1 Generous GiftGenerous Gift
- 1 Gisela, Blade of GoldnightGisela, Blade of Goldnight
- 1 Grasp of FateGrasp of Fate
- 1 Hunter's BlowgunHunter's Blowgun
- 1 Jagged BarrensJagged Barrens
- 1 Jaya, Venerated FiremageJaya, Venerated Firemage
- 1 Kaervek the MercilessKaervek the Merciless
- 1 Lightning BoltLightning Bolt
- 1 Loran's EscapeLoran's Escape
- 1 Mahadi, Emporium MasterMahadi, Emporium Master
- 1 Mardu BannerMardu Banner
- 1 Massacre GirlMassacre Girl
- 1 Mathas, Fiend SeekerMathas, Fiend Seeker
- 1 Mirrodin AvengedMirrodin Avenged
- 1 Morbid OpportunistMorbid Opportunist
- 1 MortifyMortify
- 4 MountainMountain
- 1 Nomad OutpostNomad Outpost
- 1 Orzhov BasilicaOrzhov Basilica
- 1 Otharri, Suns' GloryOtharri, Suns' Glory
- 1 Painful TruthsPainful Truths
- 1 Path of AncestryPath of Ancestry
- 1 Path to ExilePath to Exile
- 4 PlainsPlains
- 1 Prodigal PyromancerProdigal Pyromancer
- 1 Quietus SpikeQuietus Spike
- 1 Rakdos CarnariumRakdos Carnarium
- 1 Rakdos LocketRakdos Locket
- 1 Read the BonesRead the Bones
- 1 Rogue's PassageRogue's Passage
- 1 Savai CrystalSavai Crystal
- 1 Scoured BarrensScoured Barrens
- 1 Sevinne's ReclamationSevinne's Reclamation
- 1 Shadowblood RidgeShadowblood Ridge
- 1 Shattered LandscapeShattered Landscape
- 1 Single CombatSingle Combat
- 1 Skull RendSkull Rend
- 1 Sudden SpoilingSudden Spoiling
- 1 Sunhome, Fortress of the LegionSunhome, Fortress of the Legion
- 4 SwampSwamp
- 1 Swords to PlowsharesSwords to Plowshares
- 1 Temple of MaliceTemple of Malice
- 1 Temple of SilenceTemple of Silence
- 1 Temple of TriumphTemple of Triumph
- 1 Terramorphic ExpanseTerramorphic Expanse
- 1 Tor Wauki the YoungerTor Wauki the Younger
- 1 Touch of MoongloveTouch of Moonglove
- 1 Toxin AnalysisToxin Analysis
- 1 Tragic SlipTragic Slip
- 1 UnearthUnearth
- 1 Vat EmergenceVat Emergence
- 1 Vault of the ArchangelVault of the Archangel
- 1 Virulent SwipeVirulent Swipe
- 1 Volt ChargeVolt Charge
- 1 Vulshok SorcererVulshok Sorcerer
- 1 Wayfarer's BaubleWayfarer's Bauble
- 1 Wear // TearWear // Tear
- 1 Whisper of the DrossWhisper of the Dross
- 1 Wind-Scarred CragWind-Scarred Crag
- 1 Witch's MistWitch's Mist
- 1 Worn PowerstoneWorn Powerstone
- 1 You Are Already DeadYou Are Already Dead
Alesha, Who Smiles at Death
Alesha, Who Smiles at Death
Angrath's Marauders
Angrath's Marauders
Blood Cultist
Blood Cultist
Boros Reckoner
Boros Reckoner
Brash Taunter
Brash Taunter
Burnished Hart
Burnished Hart
Clackbridge Troll
Clackbridge Troll
Cunning Sparkmage
Cunning Sparkmage
Falthis, Shadowcat Familiar
Falthis, Shadowcat Familiar
Gisela, Blade of Goldnight
Gisela, Blade of Goldnight
Kaervek the Merciless
Kaervek the Merciless
Mahadi, Emporium Master
Mahadi, Emporium Master
Massacre Girl
Massacre Girl
Mathas, Fiend Seeker
Mathas, Fiend Seeker
Morbid Opportunist
Morbid Opportunist
Otharri, Suns' Glory
Otharri, Suns' Glory
Prodigal Pyromancer
Prodigal Pyromancer
Tor Wauki the Younger
Tor Wauki the Younger
Vulshok Sorcerer
Vulshok Sorcerer
Instants (21)
Alchemist's Gift
Alchemist's Gift
Bedevil
Bedevil
Chaos Warp
Chaos Warp
Coat with Venom
Coat with Venom
Crackling Doom
Crackling Doom
Generous Gift
Generous Gift
Lightning Bolt
Lightning Bolt
Loran's Escape
Loran's Escape
Mirrodin Avenged
Mirrodin Avenged
Mortify
Mortify
Path to Exile
Path to Exile
Sudden Spoiling
Sudden Spoiling
Swords to Plowshares
Swords to Plowshares
Touch of Moonglove
Touch of Moonglove
Toxin Analysis
Toxin Analysis
Tragic Slip
Tragic Slip
Virulent Swipe
Virulent Swipe
Volt Charge
Volt Charge
Wear // Tear
Wear // Tear
Whisper of the Dross
Whisper of the Dross
You Are Already Dead
You Are Already Dead
Sorceries (10)
Call of the Death-Dweller
Call of the Death-Dweller
Deafening Clarion
Deafening Clarion
Faithless Looting
Faithless Looting
Painful Truths
Painful Truths
Read the Bones
Read the Bones
Sevinne's Reclamation
Sevinne's Reclamation
Single Combat
Single Combat
Skull Rend
Skull Rend
Unearth
Unearth
Vat Emergence
Vat Emergence
Artifacts (10)
Boros Locket
Boros Locket
Commander's Sphere
Commander's Sphere
Darksteel Ingot
Darksteel Ingot
Hunter's Blowgun
Hunter's Blowgun
Mardu Banner
Mardu Banner
Quietus Spike
Quietus Spike
Rakdos Locket
Rakdos Locket
Savai Crystal
Savai Crystal
Wayfarer's Bauble
Wayfarer's Bauble
Worn Powerstone
Worn Powerstone
Enchantments (5)
Aspect of Gorgon
Aspect of Gorgon
Court of Ire
Court of Ire
Duelist's Heritage
Duelist's Heritage
Grasp of Fate
Grasp of Fate
Witch's Mist
Witch's Mist
Planeswalkers (1)
Jaya, Venerated Firemage
Jaya, Venerated Firemage
Lands (21)
Bloodfell Caves
Bloodfell Caves
Boros Garrison
Boros Garrison
Command Tower
Command Tower
Evolving Wilds
Evolving Wilds
Exotic Orchard
Exotic Orchard
Jagged Barrens
Jagged Barrens
Nomad Outpost
Nomad Outpost
Orzhov Basilica
Orzhov Basilica
Path of Ancestry
Path of Ancestry
Rakdos Carnarium
Rakdos Carnarium
Rogue's Passage
Rogue's Passage
Scoured Barrens
Scoured Barrens
Shadowblood Ridge
Shadowblood Ridge
Shattered Landscape
Shattered Landscape
Sunhome, Fortress of the Legion
Sunhome, Fortress of the Legion
Temple of Malice
Temple of Malice
Temple of Silence
Temple of Silence
Temple of Triumph
Temple of Triumph
Terramorphic Expanse
Terramorphic Expanse
Vault of the Archangel
Vault of the Archangel
Wind-Scarred Crag
Wind-Scarred Crag
Basics (3)
Mountain
4 Mountains
Plains
4 Plains
Swamp
4 Swamps