Altaïr, Brotherhood Mentor (Commander) - Activated Abilities

Original Name:

Kelsien, the PlagueKelsien, the Plague

Altaïr, Brotherhood Mentor
Rank #428
23decks
As CommanderAs CardAverage DeckDecksView Precon
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Budget
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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
Mana Artifacts
Lands
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Swift Demise
25%inclusion1 decks4 decks
25%synergy
Casey Jones, Back Alley Brute
25%inclusion1 decks4 decks
25%synergy
High Synergy Cards
Basilisk Collar
91%inclusion21 decks23 decks
87%synergy
Minthara, Merciless Soul
83%inclusion19 decks23 decks
81%synergy
Shay Cormac
82%inclusion18 decks22 decks
79%synergy
Rune of Mortality
78%inclusion18 decks23 decks
77%synergy
Vorpal Sword
74%inclusion17 decks23 decks
72%synergy
Falthis, Shadowcat Familiar
70%inclusion16 decks23 decks
68%synergy
Drumbellower
70%inclusion16 decks23 decks
68%synergy
Otharri, Suns' Glory
70%inclusion16 decks23 decks
64%synergy
Sting, the Glinting Dagger
65%inclusion15 decks23 decks
63%synergy
Mari, the Killing Quill
70%inclusion16 decks23 decks
63%synergy
Top Cards
Morbid Opportunist
74%inclusion17 decks23 decks
56%synergy
Taii Wakeen, Perfect Shot
61%inclusion14 decks23 decks
60%synergy
Termination Facilitator
61%inclusion14 decks23 decks
59%synergy
You Are Already Dead
61%inclusion14 decks23 decks
59%synergy
Swiftfoot Boots
61%inclusion14 decks23 decks
29%synergy
Thornbite Staff
61%inclusion14 decks23 decks
59%synergy
Humble Defector
57%inclusion13 decks23 decks
54%synergy
Gorgon's Head
57%inclusion13 decks23 decks
55%synergy
Mathas, Fiend Seeker
57%inclusion13 decks23 decks
55%synergy
Magda, the Hoardmaster
57%inclusion13 decks23 decks
54%synergy
Game Changers
Demonic Tutor
22%inclusion5 decks23 decks
3%synergy
Farewell
17%inclusion4 decks23 decks
7%synergy
Teferi's Protection
13%inclusion3 decks23 decks
-6%synergy
Smothering Tithe
13%inclusion3 decks23 decks
-12%synergy
Enlightened Tutor
13%inclusion3 decks23 decks
1%synergy
Orcish Bowmasters
8.7%inclusion2 decks23 decks
3%synergy
Vampiric Tutor
8.7%inclusion2 decks23 decks
-6%synergy
Creatures
General's Enforcer
57%inclusion13 decks23 decks
48%synergy
Lae'zel, Vlaakith's Champion
57%inclusion13 decks23 decks
55%synergy
Goblin Sharpshooter
48%inclusion11 decks23 decks
47%synergy
Maha, Its Feathers Night
48%inclusion10 decks21 decks
46%synergy
Ertha Jo, Frontier Mentor
39%inclusion9 decks23 decks
38%synergy
Harvester of Souls
39%inclusion9 decks23 decks
36%synergy
Mother of Runes
39%inclusion9 decks23 decks
32%synergy
Marvin, Murderous Mimic
38%inclusion8 decks21 decks
37%synergy
White Plume Adventurer
35%inclusion8 decks23 decks
33%synergy
Daxos the Returned
35%inclusion8 decks23 decks
34%synergy
Sun Titan
30%inclusion7 decks23 decks
20%synergy
Massacre Girl, Known Killer
30%inclusion7 decks23 decks
28%synergy
Azula, Ruthless Firebender
29%inclusion2 decks7 decks
28%synergy
Blood Cultist
26%inclusion6 decks23 decks
26%synergy
Void Beckoner
26%inclusion6 decks23 decks
25%synergy
Athreos, Shroud-Veiled
26%inclusion6 decks23 decks
25%synergy
Robaran Mercenaries
22%inclusion5 decks23 decks
22%synergy
Zagras, Thief of Heartbeats
22%inclusion5 decks23 decks
21%synergy
Slaughter Specialist
22%inclusion5 decks23 decks
21%synergy
Queen Marchesa
22%inclusion5 decks23 decks
16%synergy
Kalemne, Disciple of Iroas
22%inclusion5 decks23 decks
21%synergy
Qarsi Revenant
21%inclusion3 decks14 decks
18%synergy
Ankle Shanker
17%inclusion4 decks23 decks
14%synergy
Puresteel Paladin
17%inclusion4 decks23 decks
13%synergy
Cunning Sparkmage
17%inclusion4 decks23 decks
17%synergy
Tor Wauki the Younger
17%inclusion4 decks23 decks
17%synergy
Royal Assassin
17%inclusion4 decks23 decks
14%synergy
Akiri, Fearless Voyager
17%inclusion4 decks23 decks
15%synergy
Village Pillagers
17%inclusion1 decks6 decks
16%synergy
Bureau Headmaster
14%inclusion3 decks22 decks
13%synergy
Archivist of Oghma
13%inclusion3 decks23 decks
10%synergy
Deathbringer Thoctar
13%inclusion3 decks23 decks
13%synergy
Blood Artist
13%inclusion3 decks23 decks
-5%synergy
Stoneforge Mystic
13%inclusion3 decks23 decks
10%synergy
Assault Intercessor
13%inclusion3 decks23 decks
12%synergy
Esper Sentinel
13%inclusion3 decks23 decks
-5%synergy
Torbran, Thane of Red Fell
13%inclusion3 decks23 decks
13%synergy
Gisa, Glorious Resurrector
13%inclusion3 decks23 decks
12%synergy
Archetype of Finality
13%inclusion3 decks23 decks
12%synergy
Unstoppable Slasher
10%inclusion2 decks21 decks
8%synergy
Witch Enchanter
9.1%inclusion2 decks22 decks
3%synergy
Professional Face-Breaker
8.7%inclusion2 decks23 decks
-7%synergy
Bounty Agent
8.7%inclusion2 decks23 decks
8%synergy
Rakdos Ickspitter
8.7%inclusion2 decks23 decks
9%synergy
Species Specialist
8.7%inclusion2 decks23 decks
6%synergy
Knight of the White Orchid
8.7%inclusion2 decks23 decks
5%synergy
Alesha, Who Smiles at Death
8.7%inclusion2 decks23 decks
5%synergy
Zulaport Cutthroat
8.7%inclusion2 decks23 decks
-1%synergy
Stonehewer Giant
8.7%inclusion2 decks23 decks
8%synergy
Massacre Wurm
8.7%inclusion2 decks23 decks
8%synergy
Instants
Fracture
43%inclusion10 decks23 decks
37%synergy
Crackling Doom
43%inclusion10 decks23 decks
26%synergy
Boros Charm
39%inclusion9 decks23 decks
10%synergy
Stroke of Midnight
39%inclusion9 decks23 decks
27%synergy
Swords to Plowshares
35%inclusion8 decks23 decks
-27%synergy
Mirrodin Avenged
35%inclusion8 decks23 decks
34%synergy
Wear // Tear
26%inclusion6 decks23 decks
15%synergy
Generous Gift
26%inclusion6 decks23 decks
8%synergy
Path to Exile
26%inclusion6 decks23 decks
-21%synergy
Offer Immortality
22%inclusion5 decks23 decks
21%synergy
Mortify
22%inclusion5 decks23 decks
6%synergy
Despark
22%inclusion5 decks23 decks
8%synergy
Dawn's Truce
19%inclusion4 decks21 decks
12%synergy
Dire Tactics
17%inclusion4 decks23 decks
15%synergy
Terminate
17%inclusion4 decks23 decks
5%synergy
Virulent Swipe
17%inclusion4 decks23 decks
17%synergy
Anguished Unmaking
17%inclusion4 decks23 decks
-16%synergy
Flawless Maneuver
13%inclusion3 decks23 decks
-1%synergy
Battle-Rage Blessing
13%inclusion3 decks23 decks
13%synergy
Rakdos Charm
13%inclusion3 decks23 decks
4%synergy
Deflecting Swat
13%inclusion3 decks23 decks
-3%synergy
Touch of Moonglove
13%inclusion3 decks23 decks
13%synergy
Bladebrand
13%inclusion3 decks23 decks
13%synergy
Untimely Malfunction
10%inclusion2 decks21 decks
5%synergy
Siege Smash
9.1%inclusion2 decks22 decks
9%synergy
Deadly Rollick
8.7%inclusion2 decks23 decks
-2%synergy
Toxin Analysis
8.7%inclusion2 decks23 decks
9%synergy
Lightning Bolt
8.7%inclusion2 decks23 decks
5%synergy
Tainted Strike
8.7%inclusion2 decks23 decks
8%synergy
Unbreakable Formation
8.7%inclusion2 decks23 decks
4%synergy
Malakir Rebirth
8.7%inclusion2 decks23 decks
3%synergy
Deflecting Palm
8.7%inclusion2 decks23 decks
2%synergy
Rebuff the Wicked
8.7%inclusion2 decks23 decks
7%synergy
Abrade
8.7%inclusion2 decks23 decks
3%synergy
Alesha's Legacy
7.1%inclusion1 decks14 decks
6%synergy
Sorceries
Open the Armory
48%inclusion11 decks23 decks
44%synergy
Mythos of Snapdax
43%inclusion10 decks23 decks
38%synergy
Ruinous Ultimatum
39%inclusion9 decks23 decks
0%synergy
Vandalblast
35%inclusion8 decks23 decks
24%synergy
Painful Truths
35%inclusion8 decks23 decks
27%synergy
Steelshaper's Gift
30%inclusion7 decks23 decks
27%synergy
Read the Bones
26%inclusion6 decks23 decks
17%synergy
Tempt with Bunnies
24%inclusion5 decks21 decks
23%synergy
Night's Whisper
22%inclusion5 decks23 decks
9%synergy
Call of the Death-Dweller
22%inclusion5 decks23 decks
21%synergy
Damn
17%inclusion4 decks23 decks
0%synergy
Rip Apart
13%inclusion3 decks23 decks
12%synergy
Sign in Blood
13%inclusion3 decks23 decks
5%synergy
Austere Command
8.7%inclusion2 decks23 decks
1%synergy
Sevinne's Reclamation
8.7%inclusion2 decks23 decks
1%synergy
Merciless Eviction
8.7%inclusion2 decks23 decks
6%synergy
Faithless Looting
8.7%inclusion2 decks23 decks
-7%synergy
Blasphemous Act
8.7%inclusion2 decks23 decks
-14%synergy
Chandra's Ignition
8.7%inclusion2 decks23 decks
7%synergy
Utility Artifacts
Illusionist's Bracers
43%inclusion10 decks23 decks
42%synergy
Magewright's Stone
43%inclusion10 decks23 decks
42%synergy
Quietus Spike
39%inclusion9 decks23 decks
38%synergy
Shadowspear
39%inclusion9 decks23 decks
35%synergy
Glaring Spotlight
35%inclusion8 decks23 decks
34%synergy
Gorgon Flail
35%inclusion8 decks23 decks
34%synergy
Hunter's Blowgun
35%inclusion8 decks23 decks
34%synergy
Whispersilk Cloak
26%inclusion6 decks23 decks
20%synergy
Lightning Greaves
26%inclusion6 decks23 decks
-8%synergy
The Masamune
23%inclusion3 decks13 decks
23%synergy
Mithril Coat
22%inclusion5 decks23 decks
16%synergy
Robe of Stars
22%inclusion5 decks23 decks
21%synergy
Brotherhood Regalia
18%inclusion4 decks22 decks
15%synergy
Battlemage's Bracers
17%inclusion4 decks23 decks
17%synergy
Sword of the Animist
17%inclusion4 decks23 decks
8%synergy
Thousand-Year Elixir
13%inclusion3 decks23 decks
12%synergy
Haystack
13%inclusion3 decks23 decks
12%synergy
Wayfarer's Bauble
8.7%inclusion2 decks23 decks
0%synergy
The Reaver Cleaver
8.7%inclusion2 decks23 decks
3%synergy
Halo Fountain
8.7%inclusion2 decks23 decks
8%synergy
Hidden Blade
8.7%inclusion2 decks23 decks
8%synergy
Diamond Pick-Axe
8.7%inclusion2 decks23 decks
5%synergy
Hammer of Nazahn
8.7%inclusion2 decks23 decks
7%synergy
Dragonfire Blade
7.1%inclusion1 decks14 decks
6%synergy
Enchantments
Gift of Doom
39%inclusion9 decks23 decks
38%synergy
Phyrexian Arena
39%inclusion9 decks23 decks
20%synergy
Dazzling Theater // Prop Room
33%inclusion7 decks21 decks
31%synergy
Fighter Class
30%inclusion7 decks23 decks
28%synergy
All-Out Assault
29%inclusion4 decks14 decks
17%synergy
Sigarda's Aid
22%inclusion5 decks23 decks
19%synergy
At Knifepoint
22%inclusion5 decks23 decks
20%synergy
Black Market Connections
22%inclusion5 decks23 decks
6%synergy
Black Market
17%inclusion4 decks23 decks
12%synergy
Reconnaissance
17%inclusion4 decks23 decks
6%synergy
Revel in Riches
17%inclusion4 decks23 decks
11%synergy
Forge Anew
13%inclusion3 decks23 decks
11%synergy
Grave Betrayal
13%inclusion3 decks23 decks
13%synergy
Feast of the Victorious Dead
13%inclusion3 decks23 decks
12%synergy
Kaya's Ghostform
13%inclusion3 decks23 decks
11%synergy
Aspect of Gorgon
8.7%inclusion2 decks23 decks
8%synergy
Life Insurance
8.7%inclusion2 decks23 decks
6%synergy
Retreat to Hagra
8.7%inclusion2 decks23 decks
8%synergy
Agent of the Shadow Thieves
8.7%inclusion2 decks23 decks
8%synergy
Curse of Opulence
8.7%inclusion2 decks23 decks
3%synergy
Eternal Thirst
8.7%inclusion2 decks23 decks
8%synergy
Trouble in Pairs
8.7%inclusion2 decks23 decks
4%synergy
Spiteful Banditry
8.7%inclusion2 decks23 decks
7%synergy
Sticky Fingers
8.7%inclusion2 decks23 decks
8%synergy
Bitterblossom
8.7%inclusion2 decks23 decks
6%synergy
Planeswalkers
Vraska, Betrayal's Sting
13%inclusion3 decks23 decks
13%synergy
Utility Lands
Vault of the Archangel
61%inclusion14 decks23 decks
38%synergy
Rogue's Passage
57%inclusion13 decks23 decks
33%synergy
Arcane Lighthouse
52%inclusion12 decks23 decks
51%synergy
Bojuka Bog
30%inclusion7 decks23 decks
-1%synergy
Detection Tower
30%inclusion7 decks23 decks
30%synergy
Axgard Armory
30%inclusion7 decks23 decks
28%synergy
Buried Ruin
26%inclusion6 decks23 decks
23%synergy
Karn's Bastion
22%inclusion5 decks23 decks
21%synergy
Reliquary Tower
17%inclusion4 decks23 decks
2%synergy
Urborg, Tomb of Yawgmoth
17%inclusion4 decks23 decks
4%synergy
Command Beacon
13%inclusion3 decks23 decks
7%synergy
Sunhome, Fortress of the Legion
13%inclusion3 decks23 decks
9%synergy
Monumental Henge
9.1%inclusion2 decks22 decks
8%synergy
Shizo, Death's Storehouse
8.7%inclusion2 decks23 decks
2%synergy
Urza's Saga
8.7%inclusion2 decks23 decks
4%synergy
Temple of the False God
8.7%inclusion2 decks23 decks
2%synergy
Mana Artifacts
Arcane Signet
96%inclusion22 decks23 decks
10%synergy
Sol Ring
96%inclusion22 decks23 decks
7%synergy
Patriar's Seal
65%inclusion15 decks23 decks
63%synergy
Bounty Board
48%inclusion11 decks23 decks
46%synergy
Rakdos Signet
43%inclusion10 decks23 decks
14%synergy
Boros Signet
39%inclusion9 decks23 decks
11%synergy
Orzhov Signet
39%inclusion9 decks23 decks
8%synergy
Talisman of Conviction
30%inclusion7 decks23 decks
-11%synergy
Talisman of Hierarchy
30%inclusion7 decks23 decks
-10%synergy
Fellwar Stone
30%inclusion7 decks23 decks
2%synergy
Talisman of Indulgence
26%inclusion6 decks23 decks
-11%synergy
Bandit's Haul
22%inclusion5 decks23 decks
21%synergy
Commander's Sphere
17%inclusion4 decks23 decks
3%synergy
Aetheric Amplifier
16%inclusion3 decks19 decks
15%synergy
Lands
Command Tower
100%inclusion23 decks23 decks
8%synergy
Swamp
96%inclusion22 decks23 decks
0%synergy
Mountain
96%inclusion22 decks23 decks
2%synergy
Plains
96%inclusion22 decks23 decks
1%synergy
Nomad Outpost
61%inclusion14 decks23 decks
2%synergy
Godless Shrine
61%inclusion14 decks23 decks
13%synergy
Sacred Foundry
57%inclusion13 decks23 decks
12%synergy
Blood Crypt
52%inclusion12 decks23 decks
8%synergy
Clifftop Retreat
52%inclusion12 decks23 decks
1%synergy
Savai Triome
48%inclusion11 decks23 decks
10%synergy
Exotic Orchard
48%inclusion11 decks23 decks
-4%synergy
Dragonskull Summit
48%inclusion11 decks23 decks
-4%synergy
Isolated Chapel
48%inclusion11 decks23 decks
-5%synergy
Caves of Koilos
39%inclusion9 decks23 decks
0%synergy
Luxury Suite
39%inclusion9 decks23 decks
8%synergy
Spectator Seating
39%inclusion9 decks23 decks
8%synergy
Forbidden Orchard
39%inclusion9 decks23 decks
37%synergy
Arid Mesa
39%inclusion9 decks23 decks
8%synergy
Marsh Flats
39%inclusion9 decks23 decks
8%synergy
Vault of Champions
39%inclusion9 decks23 decks
7%synergy
Terramorphic Expanse
35%inclusion8 decks23 decks
16%synergy
Smoldering Marsh
30%inclusion7 decks23 decks
-6%synergy
Battlefield Forge
30%inclusion7 decks23 decks
-10%synergy
Evolving Wilds
30%inclusion7 decks23 decks
4%synergy
Bloodstained Mire
30%inclusion7 decks23 decks
-2%synergy
Shattered Landscape
27%inclusion6 decks22 decks
8%synergy
Shattered Sanctum
26%inclusion6 decks23 decks
2%synergy
Temple of Silence
26%inclusion6 decks23 decks
4%synergy
Path of Ancestry
26%inclusion6 decks23 decks
-12%synergy
Sulfurous Springs
26%inclusion6 decks23 decks
-2%synergy
Shadowblood Ridge
22%inclusion5 decks23 decks
6%synergy
Temple of Triumph
22%inclusion5 decks23 decks
0%synergy
Sundown Pass
17%inclusion4 decks23 decks
-3%synergy
Rugged Prairie
17%inclusion4 decks23 decks
0%synergy
Haunted Ridge
17%inclusion4 decks23 decks
-2%synergy
Blightstep Pathway
17%inclusion4 decks23 decks
9%synergy
Rakdos Carnarium
13%inclusion3 decks23 decks
1%synergy
Concealed Courtyard
13%inclusion3 decks23 decks
7%synergy
Shadowy Backstreet
13%inclusion3 decks23 decks
3%synergy
Fetid Heath
13%inclusion3 decks23 decks
-8%synergy
Tainted Field
13%inclusion3 decks23 decks
1%synergy
Temple of Malice
13%inclusion3 decks23 decks
-4%synergy
Boros Garrison
13%inclusion3 decks23 decks
1%synergy
Plateau
13%inclusion3 decks23 decks
1%synergy
Orzhov Basilica
13%inclusion3 decks23 decks
-1%synergy
Scrubland
13%inclusion3 decks23 decks
1%synergy
Vibrant Cityscape
13%inclusion1 decks8 decks
12%synergy
Witch Enchanter
9.1%inclusion2 decks22 decks
3%synergy
Badlands
8.7%inclusion2 decks23 decks
-4%synergy
Brightclimb Pathway
8.7%inclusion2 decks23 decks
0%synergy
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