Altaïr, Brotherhood Mentor (Commander) - Activated Abilities

Original Name:

Kelsien, the PlagueKelsien, the Plague

Altaïr, Brotherhood Mentor
Rank #426
22decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
Any$$$$
Background image for Rebuilding Kelsien, the Plague with Avatar: The Last Airbender Eternal
Ezra Sassaman
Nov 20, 2025
Ezra Sassaman
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.
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Enchantments
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Utility Lands
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Swift Demise
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
Basilisk Collar
91%inclusion20 decks22 decks
87%synergy
Minthara, Merciless Soul
86%inclusion19 decks22 decks
85%synergy
Shay Cormac
81%inclusion17 decks21 decks
78%synergy
Rune of Mortality
77%inclusion17 decks22 decks
76%synergy
Falthis, Shadowcat Familiar
73%inclusion16 decks22 decks
71%synergy
Vorpal Sword
73%inclusion16 decks22 decks
70%synergy
Otharri, Suns' Glory
73%inclusion16 decks22 decks
67%synergy
Drumbellower
68%inclusion15 decks22 decks
66%synergy
Mari, the Killing Quill
73%inclusion16 decks22 decks
66%synergy
Taii Wakeen, Perfect Shot
64%inclusion14 decks22 decks
63%synergy
Top Cards
Morbid Opportunist
73%inclusion16 decks22 decks
55%synergy
Termination Facilitator
64%inclusion14 decks22 decks
62%synergy
Sting, the Glinting Dagger
64%inclusion14 decks22 decks
62%synergy
You Are Already Dead
64%inclusion14 decks22 decks
62%synergy
Humble Defector
59%inclusion13 decks22 decks
57%synergy
Gorgon's Head
59%inclusion13 decks22 decks
58%synergy
Mathas, Fiend Seeker
59%inclusion13 decks22 decks
57%synergy
Swiftfoot Boots
59%inclusion13 decks22 decks
28%synergy
Lae'zel, Vlaakith's Champion
59%inclusion13 decks22 decks
57%synergy
Thornbite Staff
59%inclusion13 decks22 decks
58%synergy
Game Changers
Demonic Tutor
23%inclusion5 decks22 decks
4%synergy
Farewell
18%inclusion4 decks22 decks
8%synergy
Smothering Tithe
14%inclusion3 decks22 decks
-12%synergy
Enlightened Tutor
14%inclusion3 decks22 decks
2%synergy
Teferi's Protection
14%inclusion3 decks22 decks
-6%synergy
Orcish Bowmasters
9.1%inclusion2 decks22 decks
4%synergy
Vampiric Tutor
9.1%inclusion2 decks22 decks
-5%synergy
Creatures
Magda, the Hoardmaster
55%inclusion12 decks22 decks
52%synergy
General's Enforcer
55%inclusion12 decks22 decks
46%synergy
Maha, Its Feathers Night
50%inclusion10 decks20 decks
49%synergy
Goblin Sharpshooter
45%inclusion10 decks22 decks
45%synergy
Ertha Jo, Frontier Mentor
41%inclusion9 decks22 decks
40%synergy
Harvester of Souls
41%inclusion9 decks22 decks
38%synergy
Marvin, Murderous Mimic
40%inclusion8 decks20 decks
39%synergy
White Plume Adventurer
36%inclusion8 decks22 decks
35%synergy
Daxos the Returned
36%inclusion8 decks22 decks
36%synergy
Mother of Runes
36%inclusion8 decks22 decks
29%synergy
Azula, Ruthless Firebender
33%inclusion2 decks6 decks
33%synergy
Massacre Girl, Known Killer
32%inclusion7 decks22 decks
30%synergy
Sun Titan
32%inclusion7 decks22 decks
21%synergy
Blood Cultist
27%inclusion6 decks22 decks
27%synergy
Athreos, Shroud-Veiled
27%inclusion6 decks22 decks
26%synergy
Void Beckoner
27%inclusion6 decks22 decks
27%synergy
Qarsi Revenant
23%inclusion3 decks13 decks
20%synergy
Robaran Mercenaries
23%inclusion5 decks22 decks
23%synergy
Zagras, Thief of Heartbeats
23%inclusion5 decks22 decks
22%synergy
Slaughter Specialist
23%inclusion5 decks22 decks
22%synergy
Akiri, Fearless Voyager
23%inclusion5 decks22 decks
21%synergy
Queen Marchesa
23%inclusion5 decks22 decks
16%synergy
Kalemne, Disciple of Iroas
23%inclusion5 decks22 decks
22%synergy
Puresteel Paladin
18%inclusion4 decks22 decks
14%synergy
Cunning Sparkmage
18%inclusion4 decks22 decks
18%synergy
Ankle Shanker
18%inclusion4 decks22 decks
15%synergy
Royal Assassin
18%inclusion4 decks22 decks
15%synergy
Tor Wauki the Younger
18%inclusion4 decks22 decks
18%synergy
Bureau Headmaster
14%inclusion3 decks21 decks
14%synergy
Blood Artist
14%inclusion3 decks22 decks
-4%synergy
Stoneforge Mystic
14%inclusion3 decks22 decks
11%synergy
Esper Sentinel
14%inclusion3 decks22 decks
-5%synergy
Deathbringer Thoctar
14%inclusion3 decks22 decks
13%synergy
Assault Intercessor
14%inclusion3 decks22 decks
13%synergy
Torbran, Thane of Red Fell
14%inclusion3 decks22 decks
13%synergy
Archetype of Finality
14%inclusion3 decks22 decks
13%synergy
Gisa, Glorious Resurrector
14%inclusion3 decks22 decks
13%synergy
Unstoppable Slasher
10%inclusion2 decks20 decks
8%synergy
Witch Enchanter
10%inclusion2 decks21 decks
3%synergy
Bounty Agent
9.1%inclusion2 decks22 decks
8%synergy
Species Specialist
9.1%inclusion2 decks22 decks
7%synergy
Knight of the White Orchid
9.1%inclusion2 decks22 decks
5%synergy
Stonehewer Giant
9.1%inclusion2 decks22 decks
8%synergy
Professional Face-Breaker
9.1%inclusion2 decks22 decks
-6%synergy
Archivist of Oghma
9.1%inclusion2 decks22 decks
6%synergy
Rakdos Ickspitter
9.1%inclusion2 decks22 decks
9%synergy
Alesha, Who Smiles at Death
9.1%inclusion2 decks22 decks
5%synergy
Zulaport Cutthroat
9.1%inclusion2 decks22 decks
-1%synergy
Massacre Wurm
9.1%inclusion2 decks22 decks
8%synergy
Clackbridge Troll
9.1%inclusion2 decks22 decks
9%synergy
Instants
Crackling Doom
45%inclusion10 decks22 decks
28%synergy
Fracture
41%inclusion9 decks22 decks
35%synergy
Boros Charm
41%inclusion9 decks22 decks
12%synergy
Stroke of Midnight
36%inclusion8 decks22 decks
25%synergy
Mirrodin Avenged
36%inclusion8 decks22 decks
36%synergy
Swords to Plowshares
32%inclusion7 decks22 decks
-30%synergy
Wear // Tear
27%inclusion6 decks22 decks
16%synergy
Generous Gift
27%inclusion6 decks22 decks
9%synergy
Offer Immortality
23%inclusion5 decks22 decks
22%synergy
Path to Exile
23%inclusion5 decks22 decks
-24%synergy
Dawn's Truce
20%inclusion4 decks20 decks
13%synergy
Terminate
18%inclusion4 decks22 decks
6%synergy
Dire Tactics
18%inclusion4 decks22 decks
15%synergy
Virulent Swipe
18%inclusion4 decks22 decks
18%synergy
Despark
18%inclusion4 decks22 decks
4%synergy
Mortify
18%inclusion4 decks22 decks
3%synergy
Flawless Maneuver
14%inclusion3 decks22 decks
-1%synergy
Anguished Unmaking
14%inclusion3 decks22 decks
-20%synergy
Deflecting Swat
14%inclusion3 decks22 decks
-2%synergy
Touch of Moonglove
14%inclusion3 decks22 decks
14%synergy
Battle-Rage Blessing
14%inclusion3 decks22 decks
13%synergy
Rakdos Charm
14%inclusion3 decks22 decks
5%synergy
Bladebrand
14%inclusion3 decks22 decks
13%synergy
Untimely Malfunction
10%inclusion2 decks20 decks
5%synergy
Siege Smash
10%inclusion2 decks21 decks
9%synergy
Deadly Rollick
9.1%inclusion2 decks22 decks
-2%synergy
Toxin Analysis
9.1%inclusion2 decks22 decks
9%synergy
Tainted Strike
9.1%inclusion2 decks22 decks
9%synergy
Unbreakable Formation
9.1%inclusion2 decks22 decks
4%synergy
Malakir Rebirth
9.1%inclusion2 decks22 decks
4%synergy
Deflecting Palm
9.1%inclusion2 decks22 decks
3%synergy
Lightning Bolt
9.1%inclusion2 decks22 decks
6%synergy
Abrade
9.1%inclusion2 decks22 decks
3%synergy
Alesha's Legacy
7.7%inclusion1 decks13 decks
7%synergy
Parting Gust
5.0%inclusion1 decks20 decks
4%synergy
Unwanted Remake
5.0%inclusion1 decks20 decks
4%synergy
Sazacap's Brew
5.0%inclusion1 decks20 decks
5%synergy
Sorceries
Open the Armory
45%inclusion10 decks22 decks
41%synergy
Mythos of Snapdax
41%inclusion9 decks22 decks
35%synergy
Painful Truths
36%inclusion8 decks22 decks
28%synergy
Ruinous Ultimatum
36%inclusion8 decks22 decks
-3%synergy
Vandalblast
32%inclusion7 decks22 decks
21%synergy
Steelshaper's Gift
32%inclusion7 decks22 decks
29%synergy
Read the Bones
27%inclusion6 decks22 decks
18%synergy
Tempt with Bunnies
25%inclusion5 decks20 decks
24%synergy
Night's Whisper
23%inclusion5 decks22 decks
10%synergy
Call of the Death-Dweller
23%inclusion5 decks22 decks
22%synergy
Rip Apart
14%inclusion3 decks22 decks
13%synergy
Damn
14%inclusion3 decks22 decks
-4%synergy
Sign in Blood
14%inclusion3 decks22 decks
6%synergy
Austere Command
9.1%inclusion2 decks22 decks
2%synergy
Faithless Looting
9.1%inclusion2 decks22 decks
-6%synergy
Blasphemous Act
9.1%inclusion2 decks22 decks
-14%synergy
Sevinne's Reclamation
9.1%inclusion2 decks22 decks
1%synergy
Merciless Eviction
9.1%inclusion2 decks22 decks
6%synergy
Chandra's Ignition
9.1%inclusion2 decks22 decks
7%synergy
Utility Artifacts
Illusionist's Bracers
45%inclusion10 decks22 decks
44%synergy
Magewright's Stone
45%inclusion10 decks22 decks
44%synergy
Quietus Spike
41%inclusion9 decks22 decks
40%synergy
Shadowspear
41%inclusion9 decks22 decks
37%synergy
Gorgon Flail
36%inclusion8 decks22 decks
35%synergy
Hunter's Blowgun
36%inclusion8 decks22 decks
36%synergy
Glaring Spotlight
36%inclusion8 decks22 decks
36%synergy
Whispersilk Cloak
32%inclusion7 decks22 decks
26%synergy
Lightning Greaves
27%inclusion6 decks22 decks
-7%synergy
The Masamune
25%inclusion3 decks12 decks
24%synergy
Robe of Stars
23%inclusion5 decks22 decks
22%synergy
Mithril Coat
18%inclusion4 decks22 decks
13%synergy
Battlemage's Bracers
18%inclusion4 decks22 decks
18%synergy
Sword of the Animist
18%inclusion4 decks22 decks
9%synergy
Brotherhood Regalia
14%inclusion3 decks21 decks
11%synergy
Thousand-Year Elixir
14%inclusion3 decks22 decks
13%synergy
Haystack
14%inclusion3 decks22 decks
12%synergy
Wayfarer's Bauble
9.1%inclusion2 decks22 decks
1%synergy
The Reaver Cleaver
9.1%inclusion2 decks22 decks
3%synergy
Hammer of Nazahn
9.1%inclusion2 decks22 decks
7%synergy
Halo Fountain
9.1%inclusion2 decks22 decks
9%synergy
Hidden Blade
9.1%inclusion2 decks22 decks
8%synergy
Diamond Pick-Axe
9.1%inclusion2 decks22 decks
5%synergy
Dragonfire Blade
7.7%inclusion1 decks13 decks
6%synergy
Enchantments
Gift of Doom
41%inclusion9 decks22 decks
40%synergy
Phyrexian Arena
41%inclusion9 decks22 decks
22%synergy
Dazzling Theater // Prop Room
35%inclusion7 decks20 decks
33%synergy
All-Out Assault
31%inclusion4 decks13 decks
19%synergy
Fighter Class
27%inclusion6 decks22 decks
24%synergy
Black Market Connections
27%inclusion6 decks22 decks
11%synergy
Sigarda's Aid
23%inclusion5 decks22 decks
20%synergy
At Knifepoint
23%inclusion5 decks22 decks
21%synergy
Reconnaissance
18%inclusion4 decks22 decks
7%synergy
Grave Betrayal
14%inclusion3 decks22 decks
13%synergy
Kaya's Ghostform
14%inclusion3 decks22 decks
11%synergy
Revel in Riches
14%inclusion3 decks22 decks
7%synergy
Black Market
14%inclusion3 decks22 decks
8%synergy
Forge Anew
14%inclusion3 decks22 decks
11%synergy
Feast of the Victorious Dead
14%inclusion3 decks22 decks
13%synergy
Aspect of Gorgon
9.1%inclusion2 decks22 decks
9%synergy
Retreat to Hagra
9.1%inclusion2 decks22 decks
9%synergy
Curse of Opulence
9.1%inclusion2 decks22 decks
3%synergy
Spiteful Banditry
9.1%inclusion2 decks22 decks
7%synergy
Life Insurance
9.1%inclusion2 decks22 decks
7%synergy
Eternal Thirst
9.1%inclusion2 decks22 decks
9%synergy
Agent of the Shadow Thieves
9.1%inclusion2 decks22 decks
8%synergy
Sticky Fingers
9.1%inclusion2 decks22 decks
8%synergy
Bitterblossom
9.1%inclusion2 decks22 decks
6%synergy
Meathook Massacre II
5.0%inclusion1 decks20 decks
4%synergy
Planeswalkers
Vraska, Betrayal's Sting
14%inclusion3 decks22 decks
13%synergy
Utility Lands
Vault of the Archangel
64%inclusion14 decks22 decks
41%synergy
Rogue's Passage
55%inclusion12 decks22 decks
31%synergy
Arcane Lighthouse
50%inclusion11 decks22 decks
49%synergy
Bojuka Bog
32%inclusion7 decks22 decks
1%synergy
Detection Tower
32%inclusion7 decks22 decks
31%synergy
Buried Ruin
27%inclusion6 decks22 decks
24%synergy
Axgard Armory
27%inclusion6 decks22 decks
25%synergy
Karn's Bastion
23%inclusion5 decks22 decks
22%synergy
Urborg, Tomb of Yawgmoth
18%inclusion4 decks22 decks
5%synergy
Sunhome, Fortress of the Legion
14%inclusion3 decks22 decks
10%synergy
Command Beacon
14%inclusion3 decks22 decks
8%synergy
Reliquary Tower
14%inclusion3 decks22 decks
-2%synergy
Monumental Henge
10%inclusion2 decks21 decks
8%synergy
Shizo, Death's Storehouse
9.1%inclusion2 decks22 decks
2%synergy
Urza's Saga
9.1%inclusion2 decks22 decks
5%synergy
Temple of the False God
9.1%inclusion2 decks22 decks
3%synergy
Mana Artifacts
Arcane Signet
95%inclusion21 decks22 decks
9%synergy
Sol Ring
95%inclusion21 decks22 decks
7%synergy
Patriar's Seal
64%inclusion14 decks22 decks
62%synergy
Bounty Board
50%inclusion11 decks22 decks
48%synergy
Rakdos Signet
45%inclusion10 decks22 decks
16%synergy
Boros Signet
41%inclusion9 decks22 decks
13%synergy
Orzhov Signet
41%inclusion9 decks22 decks
9%synergy
Talisman of Conviction
32%inclusion7 decks22 decks
-10%synergy
Talisman of Hierarchy
32%inclusion7 decks22 decks
-9%synergy
Talisman of Indulgence
27%inclusion6 decks22 decks
-10%synergy
Fellwar Stone
27%inclusion6 decks22 decks
-1%synergy
Bandit's Haul
23%inclusion5 decks22 decks
21%synergy
Commander's Sphere
18%inclusion4 decks22 decks
4%synergy
Aetheric Amplifier
17%inclusion3 decks18 decks
16%synergy
Lands
Command Tower
100%inclusion22 decks22 decks
8%synergy
Swamp
95%inclusion21 decks22 decks
0%synergy
Mountain
95%inclusion21 decks22 decks
2%synergy
Plains
95%inclusion21 decks22 decks
0%synergy
Sacred Foundry
59%inclusion13 decks22 decks
14%synergy
Nomad Outpost
59%inclusion13 decks22 decks
1%synergy
Godless Shrine
59%inclusion13 decks22 decks
12%synergy
Blood Crypt
55%inclusion12 decks22 decks
10%synergy
Savai Triome
50%inclusion11 decks22 decks
12%synergy
Clifftop Retreat
50%inclusion11 decks22 decks
-1%synergy
Exotic Orchard
50%inclusion11 decks22 decks
-2%synergy
Dragonskull Summit
45%inclusion10 decks22 decks
-7%synergy
Isolated Chapel
45%inclusion10 decks22 decks
-8%synergy
Spectator Seating
41%inclusion9 decks22 decks
10%synergy
Vault of Champions
41%inclusion9 decks22 decks
8%synergy
Caves of Koilos
41%inclusion9 decks22 decks
2%synergy
Luxury Suite
41%inclusion9 decks22 decks
10%synergy
Arid Mesa
41%inclusion9 decks22 decks
10%synergy
Forbidden Orchard
41%inclusion9 decks22 decks
38%synergy
Marsh Flats
41%inclusion9 decks22 decks
9%synergy
Battlefield Forge
32%inclusion7 decks22 decks
-8%synergy
Bloodstained Mire
32%inclusion7 decks22 decks
-1%synergy
Terramorphic Expanse
32%inclusion7 decks22 decks
13%synergy
Smoldering Marsh
32%inclusion7 decks22 decks
-5%synergy
Shattered Landscape
29%inclusion6 decks21 decks
10%synergy
Evolving Wilds
27%inclusion6 decks22 decks
1%synergy
Path of Ancestry
27%inclusion6 decks22 decks
-11%synergy
Sulfurous Springs
27%inclusion6 decks22 decks
0%synergy
Shadowblood Ridge
23%inclusion5 decks22 decks
7%synergy
Shattered Sanctum
23%inclusion5 decks22 decks
-1%synergy
Temple of Silence
23%inclusion5 decks22 decks
0%synergy
Sundown Pass
18%inclusion4 decks22 decks
-2%synergy
Blightstep Pathway
18%inclusion4 decks22 decks
10%synergy
Temple of Triumph
18%inclusion4 decks22 decks
-4%synergy
Rugged Prairie
18%inclusion4 decks22 decks
1%synergy
Rakdos Carnarium
14%inclusion3 decks22 decks
2%synergy
Shadowy Backstreet
14%inclusion3 decks22 decks
3%synergy
Fetid Heath
14%inclusion3 decks22 decks
-7%synergy
Boros Garrison
14%inclusion3 decks22 decks
1%synergy
Plateau
14%inclusion3 decks22 decks
2%synergy
Haunted Ridge
14%inclusion3 decks22 decks
-6%synergy
Concealed Courtyard
14%inclusion3 decks22 decks
8%synergy
Tainted Field
14%inclusion3 decks22 decks
2%synergy
Orzhov Basilica
14%inclusion3 decks22 decks
0%synergy
Scrubland
14%inclusion3 decks22 decks
1%synergy
Witch Enchanter
10%inclusion2 decks21 decks
3%synergy
Unclaimed Territory
9.1%inclusion2 decks22 decks
1%synergy
Temple of Malice
9.1%inclusion2 decks22 decks
-8%synergy
Malakir Rebirth
9.1%inclusion2 decks22 decks
4%synergy
Radiant Summit
9.1%inclusion1 decks11 decks
6%synergy
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