Altaïr, Brotherhood Mentor (Commander) - Activated Abilities

Original Name:

Kelsien, the PlagueKelsien, the Plague

Altaïr, Brotherhood Mentor
Rank #403
22decks
As CommanderAs CardAverage DeckDecksView Precon
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All12345
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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Utility Lands
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Basilisk Collar
91%inclusion20 decks22 decks
86%synergy
Shay Cormac
89%inclusion16 decks18 decks
86%synergy
Rune of Mortality
82%inclusion18 decks22 decks
80%synergy
Minthara, Merciless Soul
82%inclusion18 decks22 decks
80%synergy
Falthis, Shadowcat Familiar
73%inclusion16 decks22 decks
71%synergy
Mari, the Killing Quill
77%inclusion17 decks22 decks
70%synergy
Otharri, Suns' Glory
73%inclusion16 decks22 decks
67%synergy
Drumbellower
68%inclusion15 decks22 decks
66%synergy
Vorpal Sword
68%inclusion15 decks22 decks
66%synergy
Taii Wakeen, Perfect Shot
63%inclusion12 decks19 decks
62%synergy
Top Cards
Morbid Opportunist
73%inclusion16 decks22 decks
55%synergy
Gorgon's Head
64%inclusion14 decks22 decks
62%synergy
Humble Defector
59%inclusion13 decks22 decks
57%synergy
Termination Facilitator
59%inclusion13 decks22 decks
57%synergy
General's Enforcer
59%inclusion13 decks22 decks
51%synergy
Sting, the Glinting Dagger
59%inclusion13 decks22 decks
57%synergy
Swiftfoot Boots
59%inclusion13 decks22 decks
28%synergy
Thornbite Staff
59%inclusion13 decks22 decks
58%synergy
Mathas, Fiend Seeker
55%inclusion12 decks22 decks
52%synergy
You Are Already Dead
55%inclusion12 decks22 decks
53%synergy
Game Changers
Demonic Tutor
32%inclusion7 decks22 decks
12%synergy
Smothering Tithe
18%inclusion4 decks22 decks
-8%synergy
Enlightened Tutor
18%inclusion4 decks22 decks
6%synergy
Teferi's Protection
14%inclusion3 decks22 decks
-7%synergy
Vampiric Tutor
14%inclusion3 decks22 decks
-1%synergy
Orcish Bowmasters
9.1%inclusion2 decks22 decks
4%synergy
Creatures
Maha, Its Feathers Night
53%inclusion9 decks17 decks
52%synergy
Magda, the Hoardmaster
52%inclusion11 decks21 decks
50%synergy
Harvester of Souls
45%inclusion10 decks22 decks
42%synergy
Lae'zel, Vlaakith's Champion
45%inclusion10 decks22 decks
43%synergy
Ertha Jo, Frontier Mentor
42%inclusion8 decks19 decks
41%synergy
White Plume Adventurer
41%inclusion9 decks22 decks
39%synergy
Mother of Runes
41%inclusion9 decks22 decks
33%synergy
Daxos the Returned
41%inclusion9 decks22 decks
40%synergy
Goblin Sharpshooter
36%inclusion8 decks22 decks
36%synergy
Marvin, Murderous Mimic
35%inclusion6 decks17 decks
34%synergy
Blood Cultist
32%inclusion7 decks22 decks
31%synergy
Athreos, Shroud-Veiled
32%inclusion7 decks22 decks
30%synergy
Sun Titan
32%inclusion7 decks22 decks
21%synergy
Massacre Girl, Known Killer
32%inclusion7 decks22 decks
30%synergy
Qarsi Revenant
30%inclusion3 decks10 decks
27%synergy
Void Beckoner
27%inclusion6 decks22 decks
27%synergy
Robaran Mercenaries
23%inclusion5 decks22 decks
22%synergy
Zagras, Thief of Heartbeats
23%inclusion5 decks22 decks
22%synergy
Slaughter Specialist
23%inclusion5 decks22 decks
22%synergy
Cunning Sparkmage
23%inclusion5 decks22 decks
22%synergy
Akiri, Fearless Voyager
23%inclusion5 decks22 decks
20%synergy
Kalemne, Disciple of Iroas
23%inclusion5 decks22 decks
22%synergy
Blood Artist
18%inclusion4 decks22 decks
0%synergy
Esper Sentinel
18%inclusion4 decks22 decks
0%synergy
Puresteel Paladin
18%inclusion4 decks22 decks
14%synergy
Queen Marchesa
18%inclusion4 decks22 decks
12%synergy
Bureau Headmaster
17%inclusion3 decks18 decks
16%synergy
Ankle Shanker
14%inclusion3 decks22 decks
10%synergy
Zulaport Cutthroat
14%inclusion3 decks22 decks
4%synergy
Torbran, Thane of Red Fell
14%inclusion3 decks22 decks
13%synergy
Royal Assassin
14%inclusion3 decks22 decks
10%synergy
Tor Wauki the Younger
14%inclusion3 decks22 decks
13%synergy
Archetype of Finality
14%inclusion3 decks22 decks
13%synergy
Witch Enchanter
11%inclusion2 decks18 decks
5%synergy
Zenos yae Galvus
10%inclusion1 decks10 decks
10%synergy
Locke, Treasure Hunter
10%inclusion1 decks10 decks
3%synergy
Vincent Valentine
10%inclusion1 decks10 decks
9%synergy
Professional Face-Breaker
9.1%inclusion2 decks22 decks
-6%synergy
Bounty Agent
9.1%inclusion2 decks22 decks
8%synergy
Archivist of Oghma
9.1%inclusion2 decks22 decks
6%synergy
Deathbringer Thoctar
9.1%inclusion2 decks22 decks
9%synergy
Stoneforge Mystic
9.1%inclusion2 decks22 decks
6%synergy
Assault Intercessor
9.1%inclusion2 decks22 decks
8%synergy
Species Specialist
9.1%inclusion2 decks22 decks
7%synergy
Teysa Karlov
9.1%inclusion2 decks22 decks
2%synergy
Knight of the White Orchid
9.1%inclusion2 decks22 decks
5%synergy
Massacre Wurm
9.1%inclusion2 decks22 decks
8%synergy
Stonehewer Giant
9.1%inclusion2 decks22 decks
8%synergy
Norn's Choirmaster
9.1%inclusion2 decks22 decks
9%synergy
Gisa, Glorious Resurrector
9.1%inclusion2 decks22 decks
8%synergy
Instants
Boros Charm
45%inclusion10 decks22 decks
16%synergy
Mirrodin Avenged
41%inclusion9 decks22 decks
40%synergy
Crackling Doom
41%inclusion9 decks22 decks
24%synergy
Fracture
41%inclusion9 decks22 decks
35%synergy
Swords to Plowshares
36%inclusion8 decks22 decks
-26%synergy
Stroke of Midnight
32%inclusion7 decks22 decks
20%synergy
Wear // Tear
27%inclusion6 decks22 decks
16%synergy
Generous Gift
27%inclusion6 decks22 decks
8%synergy
Dawn's Truce
24%inclusion4 decks17 decks
16%synergy
Deflecting Swat
23%inclusion5 decks22 decks
7%synergy
Bladebrand
18%inclusion4 decks22 decks
18%synergy
Offer Immortality
18%inclusion4 decks22 decks
17%synergy
Path to Exile
18%inclusion4 decks22 decks
-29%synergy
Mortify
18%inclusion4 decks22 decks
3%synergy
Deadly Rollick
14%inclusion3 decks22 decks
3%synergy
Chaos Warp
14%inclusion3 decks22 decks
-3%synergy
Dire Tactics
14%inclusion3 decks22 decks
11%synergy
Toxin Analysis
14%inclusion3 decks22 decks
13%synergy
Flawless Maneuver
14%inclusion3 decks22 decks
-1%synergy
Battle-Rage Blessing
14%inclusion3 decks22 decks
13%synergy
Rakdos Charm
14%inclusion3 decks22 decks
5%synergy
Terminate
14%inclusion3 decks22 decks
1%synergy
Virulent Swipe
14%inclusion3 decks22 decks
13%synergy
Malakir Rebirth
14%inclusion3 decks22 decks
8%synergy
Despark
14%inclusion3 decks22 decks
-1%synergy
Touch of Moonglove
14%inclusion3 decks22 decks
14%synergy
Untimely Malfunction
12%inclusion2 decks17 decks
7%synergy
Siege Smash
11%inclusion2 decks18 decks
11%synergy
Lightning Bolt
9.1%inclusion2 decks22 decks
6%synergy
Tainted Strike
9.1%inclusion2 decks22 decks
9%synergy
Unbreakable Formation
9.1%inclusion2 decks22 decks
4%synergy
Anguished Unmaking
9.1%inclusion2 decks22 decks
-25%synergy
Deflecting Palm
9.1%inclusion2 decks22 decks
3%synergy
Sudden Spoiling
9.1%inclusion2 decks22 decks
8%synergy
Rebuff the Wicked
9.1%inclusion2 decks22 decks
8%synergy
Abrade
9.1%inclusion2 decks22 decks
3%synergy
Valakut Awakening
9.1%inclusion2 decks22 decks
6%synergy
Sazacap's Brew
5.9%inclusion1 decks17 decks
6%synergy
Fell the Profane
5.6%inclusion1 decks18 decks
-1%synergy
Great Train Heist
5.3%inclusion1 decks19 decks
1%synergy
Rustler Rampage
5.3%inclusion1 decks19 decks
5%synergy
Sorceries
Open the Armory
50%inclusion11 decks22 decks
46%synergy
Mythos of Snapdax
45%inclusion10 decks22 decks
40%synergy
Vandalblast
36%inclusion8 decks22 decks
26%synergy
Painful Truths
36%inclusion8 decks22 decks
28%synergy
Ruinous Ultimatum
36%inclusion8 decks22 decks
-3%synergy
Fated Clash
33%inclusion1 decks3 decks
33%synergy
Tempt with Bunnies
24%inclusion4 decks17 decks
23%synergy
Read the Bones
23%inclusion5 decks22 decks
13%synergy
Steelshaper's Gift
23%inclusion5 decks22 decks
19%synergy
Farewell
18%inclusion4 decks22 decks
7%synergy
Night's Whisper
18%inclusion4 decks22 decks
5%synergy
Call of the Death-Dweller
18%inclusion4 decks22 decks
18%synergy
Sign in Blood
14%inclusion3 decks22 decks
5%synergy
Rip Apart
14%inclusion3 decks22 decks
13%synergy
Austere Command
9.1%inclusion2 decks22 decks
2%synergy
Sevinne's Reclamation
9.1%inclusion2 decks22 decks
1%synergy
Faithless Looting
9.1%inclusion2 decks22 decks
-6%synergy
Blasphemous Act
9.1%inclusion2 decks22 decks
-13%synergy
Damn
9.1%inclusion2 decks22 decks
-9%synergy
Grim Tutor
9.1%inclusion2 decks22 decks
5%synergy
Chandra's Ignition
9.1%inclusion2 decks22 decks
7%synergy
Sundering Eruption
5.6%inclusion1 decks18 decks
3%synergy
Requisition Raid
5.3%inclusion1 decks19 decks
3%synergy
Utility Artifacts
Illusionist's Bracers
50%inclusion11 decks22 decks
48%synergy
Magewright's Stone
50%inclusion11 decks22 decks
49%synergy
Hunter's Blowgun
45%inclusion10 decks22 decks
45%synergy
Quietus Spike
41%inclusion9 decks22 decks
40%synergy
Gorgon Flail
41%inclusion9 decks22 decks
40%synergy
Shadowspear
36%inclusion8 decks22 decks
32%synergy
The Masamune
33%inclusion3 decks9 decks
33%synergy
Glaring Spotlight
32%inclusion7 decks22 decks
31%synergy
Lightning Greaves
27%inclusion6 decks22 decks
-7%synergy
Thousand-Year Elixir
23%inclusion5 decks22 decks
22%synergy
Whispersilk Cloak
23%inclusion5 decks22 decks
17%synergy
Battlemage's Bracers
23%inclusion5 decks22 decks
22%synergy
Sword of the Animist
23%inclusion5 decks22 decks
13%synergy
Mithril Coat
18%inclusion4 decks22 decks
12%synergy
Robe of Stars
18%inclusion4 decks22 decks
17%synergy
Haystack
14%inclusion3 decks21 decks
13%synergy
Brotherhood Regalia
11%inclusion2 decks18 decks
8%synergy
Dragonfire Blade
10%inclusion1 decks10 decks
9%synergy
Hidden Blade
10%inclusion2 decks21 decks
9%synergy
Wayfarer's Bauble
9.1%inclusion2 decks22 decks
0%synergy
Halo Fountain
9.1%inclusion2 decks22 decks
8%synergy
The Reaver Cleaver
9.1%inclusion2 decks22 decks
3%synergy
Diamond Pick-Axe
9.1%inclusion2 decks22 decks
5%synergy
Hammer of Nazahn
9.1%inclusion2 decks22 decks
7%synergy
Smoke Bomb
5.6%inclusion1 decks18 decks
5%synergy
Enchantments
Gift of Doom
41%inclusion9 decks22 decks
40%synergy
Phyrexian Arena
36%inclusion8 decks22 decks
17%synergy
Dazzling Theater // Prop Room
35%inclusion6 decks17 decks
33%synergy
Fighter Class
32%inclusion7 decks22 decks
29%synergy
All-Out Assault
30%inclusion3 decks10 decks
18%synergy
Black Market
23%inclusion5 decks22 decks
17%synergy
Sigarda's Aid
23%inclusion5 decks22 decks
20%synergy
Revel in Riches
23%inclusion5 decks22 decks
16%synergy
Black Market Connections
23%inclusion5 decks22 decks
7%synergy
Forge Anew
18%inclusion4 decks22 decks
16%synergy
At Knifepoint
16%inclusion3 decks19 decks
14%synergy
Reconnaissance
14%inclusion3 decks22 decks
3%synergy
Aspect of Gorgon
14%inclusion3 decks22 decks
13%synergy
Feast of the Victorious Dead
14%inclusion3 decks22 decks
13%synergy
Grave Betrayal
14%inclusion3 decks22 decks
13%synergy
Eternal Thirst
14%inclusion3 decks22 decks
13%synergy
Kaya's Ghostform
14%inclusion3 decks22 decks
11%synergy
Spiteful Banditry
14%inclusion3 decks22 decks
11%synergy
Life Insurance
9.1%inclusion2 decks22 decks
7%synergy
Retreat to Hagra
9.1%inclusion2 decks22 decks
9%synergy
Phyresis
9.1%inclusion2 decks22 decks
9%synergy
Curse of Opulence
9.1%inclusion2 decks22 decks
3%synergy
Bastion of Remembrance
9.1%inclusion2 decks22 decks
-5%synergy
Land Tax
9.1%inclusion2 decks22 decks
3%synergy
Sticky Fingers
9.1%inclusion2 decks22 decks
8%synergy
Meathook Massacre II
5.9%inclusion1 decks17 decks
5%synergy
Nowhere to Run
5.6%inclusion1 decks18 decks
5%synergy
Planeswalkers
Vraska, Betrayal's Sting
14%inclusion3 decks22 decks
13%synergy
Utility Lands
Vault of the Archangel
59%inclusion13 decks22 decks
37%synergy
Rogue's Passage
55%inclusion12 decks22 decks
31%synergy
Arcane Lighthouse
45%inclusion10 decks22 decks
44%synergy
Bojuka Bog
27%inclusion6 decks22 decks
-4%synergy
Buried Ruin
23%inclusion5 decks22 decks
19%synergy
Detection Tower
23%inclusion5 decks22 decks
22%synergy
Axgard Armory
23%inclusion5 decks22 decks
21%synergy
Reliquary Tower
23%inclusion5 decks22 decks
7%synergy
Karn's Bastion
18%inclusion4 decks22 decks
17%synergy
Sunhome, Fortress of the Legion
18%inclusion4 decks22 decks
14%synergy
Urborg, Tomb of Yawgmoth
14%inclusion3 decks22 decks
0%synergy
Monumental Henge
11%inclusion2 decks18 decks
10%synergy
Shizo, Death's Storehouse
9.1%inclusion2 decks22 decks
2%synergy
Urza's Saga
9.1%inclusion2 decks22 decks
5%synergy
Command Beacon
9.1%inclusion2 decks22 decks
3%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
68%inclusion15 decks22 decks
66%synergy
Rakdos Signet
50%inclusion11 decks22 decks
19%synergy
Bounty Board
47%inclusion9 decks19 decks
45%synergy
Orzhov Signet
45%inclusion10 decks22 decks
12%synergy
Boros Signet
41%inclusion9 decks22 decks
12%synergy
Talisman of Conviction
32%inclusion7 decks22 decks
-9%synergy
Talisman of Hierarchy
32%inclusion7 decks22 decks
-9%synergy
Fellwar Stone
27%inclusion6 decks22 decks
-1%synergy
Commander's Sphere
23%inclusion5 decks22 decks
8%synergy
Talisman of Indulgence
23%inclusion5 decks22 decks
-14%synergy
Bandit's Haul
21%inclusion4 decks19 decks
20%synergy
Aetheric Amplifier
20%inclusion3 decks15 decks
20%synergy
Chromatic Lantern
9.1%inclusion2 decks22 decks
-3%synergy
Hourglass of the Lost
5.6%inclusion1 decks18 decks
5%synergy
Lands
Command Tower
100%inclusion22 decks22 decks
8%synergy
Swamp
91%inclusion20 decks22 decks
-4%synergy
Plains
91%inclusion20 decks22 decks
-4%synergy
Mountain
86%inclusion19 decks22 decks
-7%synergy
Sacred Foundry
59%inclusion13 decks22 decks
15%synergy
Dragonskull Summit
59%inclusion13 decks22 decks
8%synergy
Godless Shrine
59%inclusion13 decks22 decks
12%synergy
Clifftop Retreat
59%inclusion13 decks22 decks
9%synergy
Blood Crypt
55%inclusion12 decks22 decks
11%synergy
Nomad Outpost
55%inclusion12 decks22 decks
-4%synergy
Isolated Chapel
55%inclusion12 decks22 decks
3%synergy
Savai Triome
50%inclusion11 decks22 decks
11%synergy
Exotic Orchard
45%inclusion10 decks22 decks
-6%synergy
Arid Mesa
45%inclusion10 decks22 decks
14%synergy
Marsh Flats
45%inclusion10 decks22 decks
14%synergy
Vault of Champions
45%inclusion10 decks22 decks
12%synergy
Caves of Koilos
41%inclusion9 decks22 decks
2%synergy
Luxury Suite
41%inclusion9 decks22 decks
9%synergy
Spectator Seating
41%inclusion9 decks22 decks
9%synergy
Forbidden Orchard
36%inclusion8 decks22 decks
34%synergy
Terramorphic Expanse
32%inclusion7 decks22 decks
12%synergy
Smoldering Marsh
32%inclusion7 decks22 decks
-4%synergy
Battlefield Forge
32%inclusion7 decks22 decks
-8%synergy
Path of Ancestry
32%inclusion7 decks22 decks
-6%synergy
Sulfurous Springs
32%inclusion7 decks22 decks
5%synergy
Bloodstained Mire
32%inclusion7 decks22 decks
-1%synergy
Shattered Landscape
28%inclusion5 decks18 decks
8%synergy
Evolving Wilds
27%inclusion6 decks22 decks
1%synergy
Shattered Sanctum
27%inclusion6 decks22 decks
4%synergy
Shadowblood Ridge
23%inclusion5 decks22 decks
8%synergy
Sundown Pass
23%inclusion5 decks22 decks
2%synergy
Plateau
23%inclusion5 decks22 decks
11%synergy
Scrubland
23%inclusion5 decks22 decks
11%synergy
Haunted Ridge
23%inclusion5 decks22 decks
3%synergy
Blightstep Pathway
23%inclusion5 decks22 decks
14%synergy
Temple of Silence
23%inclusion5 decks22 decks
0%synergy
Badlands
18%inclusion4 decks22 decks
6%synergy
Shadowy Backstreet
18%inclusion4 decks22 decks
8%synergy
Fetid Heath
18%inclusion4 decks22 decks
-2%synergy
Rakdos Carnarium
14%inclusion3 decks22 decks
1%synergy
Brightclimb Pathway
14%inclusion3 decks22 decks
4%synergy
Tainted Field
14%inclusion3 decks22 decks
2%synergy
Temple of Triumph
14%inclusion3 decks22 decks
-9%synergy
Rugged Prairie
14%inclusion3 decks22 decks
-2%synergy
Boros Garrison
14%inclusion3 decks22 decks
0%synergy
Malakir Rebirth
14%inclusion3 decks22 decks
8%synergy
Needleverge Pathway
14%inclusion3 decks22 decks
5%synergy
Orzhov Basilica
14%inclusion3 decks22 decks
-1%synergy
Radiant Summit
13%inclusion1 decks8 decks
9%synergy
Witch Enchanter
11%inclusion2 decks18 decks
5%synergy
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