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Average Deck for Altaïr, Brotherhood Mentor - Budget Optimized
Original Name:
Kelsien, the PlagueKelsien, the Plague
Altaïr, Brotherhood Mentor
Rank #427
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 Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor
- 1 Akiri, Fearless VoyagerAkiri, Fearless Voyager
- 1 All-Out AssaultAll-Out Assault
- 1 Anguished UnmakingAnguished Unmaking
- 1 Arcane LighthouseArcane Lighthouse
- 1 Arcane SignetArcane Signet
- 1 Archetype of FinalityArchetype of Finality
- 1 Basilisk CollarBasilisk Collar
- 1 Battlefield ForgeBattlefield Forge
- 1 Blood CultistBlood Cultist
- 1 Boros CharmBoros Charm
- 1 Boros SignetBoros Signet
- 1 Buried RuinBuried Ruin
- 1 Caves of KoilosCaves of Koilos
- 1 Chandra's IgnitionChandra's Ignition
- 1 Chaos WarpChaos Warp
- 1 Clifftop RetreatClifftop Retreat
- 1 Command TowerCommand Tower
- 1 Crackling DoomCrackling Doom
- 1 Diabolic TutorDiabolic Tutor
- 1 Dragonskull SummitDragonskull Summit
- 1 DrumbellowerDrumbellower
- 1 Exotic OrchardExotic Orchard
- 1 Fabled PassageFabled Passage
- 1 Falthis, Shadowcat FamiliarFalthis, Shadowcat Familiar
- 1 Fellwar StoneFellwar Stone
- 1 Fetid HeathFetid Heath
- 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 Isolated ChapelIsolated Chapel
- 1 Magewright's StoneMagewright's Stone
- 1 Maha, Its Feathers NightMaha, Its Feathers Night
- 1 Malakir RebirthMalakir Rebirth
- 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
- 5 MountainMountain
- 1 Mythos of SnapdaxMythos of Snapdax
- 1 Nomad OutpostNomad Outpost
- 1 Open the ArmoryOpen the Armory
- 1 Orzhov SignetOrzhov Signet
- 1 Otharri, Suns' GloryOtharri, Suns' Glory
- 1 Painful TruthsPainful Truths
- 1 Patriar's SealPatriar's Seal
- 1 Phyrexian ArenaPhyrexian Arena
- 6 PlainsPlains
- 1 Puresteel PaladinPuresteel Paladin
- 1 Quietus SpikeQuietus Spike
- 1 Rakdos CharmRakdos Charm
- 1 Rakdos SignetRakdos Signet
- 1 Revel in RichesRevel in Riches
- 1 Rogue's PassageRogue's Passage
- 1 Ruinous UltimatumRuinous Ultimatum
- 1 Rune of MortalityRune of Mortality
- 1 Shadowblood RidgeShadowblood Ridge
- 1 ShadowspearShadowspear
- 1 Shay CormacShay Cormac
- 1 Slaughter SpecialistSlaughter Specialist
- 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
- 6 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 Temple of SilenceTemple of Silence
- 1 Thornbite StaffThornbite Staff
- 1 Utter EndUtter End
- 1 Vault of the ArchangelVault of the Archangel
- 1 Vorpal SwordVorpal Sword
- 1 White Plume AdventurerWhite Plume Adventurer
Akiri, Fearless Voyager
Akiri, Fearless Voyager
Archetype of Finality
Archetype of Finality
Blood Cultist
Blood Cultist
Drumbellower
Drumbellower
Falthis, Shadowcat Familiar
Falthis, Shadowcat Familiar
General's Enforcer
General's Enforcer
Goblin Sharpshooter
Goblin Sharpshooter
Humble Defector
Humble Defector
Maha, Its Feathers Night
Maha, Its Feathers Night
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
Shay Cormac
Shay Cormac
Slaughter Specialist
Slaughter Specialist
Taii Wakeen, Perfect Shot
Taii Wakeen, Perfect Shot
White Plume Adventurer
White Plume Adventurer
Instants (11)
Anguished Unmaking
Anguished Unmaking
Boros Charm
Boros Charm
Chaos Warp
Chaos Warp
Crackling Doom
Crackling Doom
Generous Gift
Generous Gift
Malakir Rebirth
Malakir Rebirth
Mortify
Mortify
Rakdos Charm
Rakdos Charm
Stroke of Midnight
Stroke of Midnight
Swords to Plowshares
Swords to Plowshares
Utter End
Utter End
Sorceries (7)
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
Steelshaper's Gift
Steelshaper's Gift
Artifacts (21)
Arcane Signet
Arcane Signet
Basilisk Collar
Basilisk Collar
Boros Signet
Boros Signet
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
Shadowspear
Shadowspear
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 (6)
All-Out Assault
All-Out Assault
Fighter Class
Fighter Class
Gift of Doom
Gift of Doom
Phyrexian Arena
Phyrexian Arena
Revel in Riches
Revel in Riches
Rune of Mortality
Rune of Mortality
Lands (18)
Arcane Lighthouse
Arcane Lighthouse
Battlefield Forge
Battlefield Forge
Buried Ruin
Buried Ruin
Caves of Koilos
Caves of Koilos
Clifftop Retreat
Clifftop Retreat
Command Tower
Command Tower
Dragonskull Summit
Dragonskull Summit
Exotic Orchard
Exotic Orchard
Fabled Passage
Fabled Passage
Fetid Heath
Fetid Heath
Isolated Chapel
Isolated Chapel
Nomad Outpost
Nomad Outpost
Rogue's Passage
Rogue's Passage
Shadowblood Ridge
Shadowblood Ridge
Spectator Seating
Spectator Seating
Sulfurous Springs
Sulfurous Springs
Temple of Silence
Temple of Silence
Vault of the Archangel
Vault of the Archangel
Basics (3)
Mountain
5 Mountains
Plains
6 Plains
Swamp
6 Swamps