Kelsien, the Plague (Commander) - Activated Abilities

Alternate Names:

Altaïr, Brotherhood MentorAltaïr, Brotherhood Mentor

Kelsien, the Plague
Rank #434
24decks
As CommanderAs CardAverage DeckDecksView Precon
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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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Emeritus of Truce
50%inclusion1 decks2 decks
49%synergy
High Synergy Cards
Basilisk Collar
92%inclusion22 decks24 decks
87%synergy
Minthara, Merciless Soul
83%inclusion20 decks24 decks
82%synergy
Shay Cormac
83%inclusion19 decks23 decks
80%synergy
Rune of Mortality
79%inclusion19 decks24 decks
78%synergy
Vorpal Sword
75%inclusion18 decks24 decks
73%synergy
Falthis, Shadowcat Familiar
71%inclusion17 decks24 decks
70%synergy
Drumbellower
71%inclusion17 decks24 decks
69%synergy
Otharri, Suns' Glory
71%inclusion17 decks24 decks
65%synergy
Sting, the Glinting Dagger
67%inclusion16 decks24 decks
65%synergy
Mari, the Killing Quill
71%inclusion17 decks24 decks
64%synergy
Top Cards
Morbid Opportunist
75%inclusion18 decks24 decks
57%synergy
Termination Facilitator
63%inclusion15 decks24 decks
61%synergy
You Are Already Dead
63%inclusion15 decks24 decks
61%synergy
Swiftfoot Boots
63%inclusion15 decks24 decks
31%synergy
Thornbite Staff
63%inclusion15 decks24 decks
61%synergy
Humble Defector
58%inclusion14 decks24 decks
56%synergy
Taii Wakeen, Perfect Shot
58%inclusion14 decks24 decks
58%synergy
Gorgon's Head
58%inclusion14 decks24 decks
57%synergy
Mathas, Fiend Seeker
58%inclusion14 decks24 decks
56%synergy
Magda, the Hoardmaster
58%inclusion14 decks24 decks
56%synergy
Game Changers
Demonic Tutor
21%inclusion5 decks24 decks
2%synergy
Farewell
17%inclusion4 decks24 decks
6%synergy
Teferi's Protection
13%inclusion3 decks24 decks
-7%synergy
Smothering Tithe
13%inclusion3 decks24 decks
-12%synergy
Enlightened Tutor
13%inclusion3 decks24 decks
1%synergy
Orcish Bowmasters
8.3%inclusion2 decks24 decks
3%synergy
Vampiric Tutor
8.3%inclusion2 decks24 decks
-6%synergy
Creatures
General's Enforcer
58%inclusion14 decks24 decks
50%synergy
Lae'zel, Vlaakith's Champion
58%inclusion14 decks24 decks
56%synergy
Goblin Sharpshooter
50%inclusion12 decks24 decks
49%synergy
Maha, Its Feathers Night
45%inclusion10 decks22 decks
44%synergy
Ertha Jo, Frontier Mentor
42%inclusion10 decks24 decks
41%synergy
Harvester of Souls
42%inclusion10 decks24 decks
39%synergy
Mother of Runes
42%inclusion10 decks24 decks
34%synergy
Daxos the Returned
38%inclusion9 decks24 decks
37%synergy
Marvin, Murderous Mimic
36%inclusion8 decks22 decks
35%synergy
White Plume Adventurer
33%inclusion8 decks24 decks
32%synergy
Blood Cultist
29%inclusion7 decks24 decks
29%synergy
Sun Titan
29%inclusion7 decks24 decks
18%synergy
Massacre Girl, Known Killer
29%inclusion7 decks24 decks
27%synergy
Void Beckoner
25%inclusion6 decks24 decks
24%synergy
Athreos, Shroud-Veiled
25%inclusion6 decks24 decks
24%synergy
Slaughter Specialist
25%inclusion6 decks24 decks
24%synergy
Kalemne, Disciple of Iroas
25%inclusion6 decks24 decks
24%synergy
Azula, Ruthless Firebender
25%inclusion2 decks8 decks
25%synergy
Robaran Mercenaries
21%inclusion5 decks24 decks
21%synergy
Ankle Shanker
21%inclusion5 decks24 decks
18%synergy
Zagras, Thief of Heartbeats
21%inclusion5 decks24 decks
20%synergy
Queen Marchesa
21%inclusion5 decks24 decks
15%synergy
Qarsi Revenant
20%inclusion3 decks15 decks
17%synergy
Casey Jones, Back Alley Brute
20%inclusion1 decks5 decks
20%synergy
Puresteel Paladin
17%inclusion4 decks24 decks
13%synergy
Royal Assassin
17%inclusion4 decks24 decks
14%synergy
Cunning Sparkmage
17%inclusion4 decks24 decks
16%synergy
Tor Wauki the Younger
17%inclusion4 decks24 decks
16%synergy
Akiri, Fearless Voyager
17%inclusion4 decks24 decks
15%synergy
Archetype of Finality
17%inclusion4 decks24 decks
16%synergy
Village Pillagers
14%inclusion1 decks7 decks
14%synergy
Bureau Headmaster
13%inclusion3 decks23 decks
12%synergy
Archivist of Oghma
13%inclusion3 decks24 decks
10%synergy
Deathbringer Thoctar
13%inclusion3 decks24 decks
12%synergy
Blood Artist
13%inclusion3 decks24 decks
-6%synergy
Stoneforge Mystic
13%inclusion3 decks24 decks
10%synergy
Assault Intercessor
13%inclusion3 decks24 decks
12%synergy
Esper Sentinel
13%inclusion3 decks24 decks
-6%synergy
Torbran, Thane of Red Fell
13%inclusion3 decks24 decks
12%synergy
Gisa, Glorious Resurrector
13%inclusion3 decks24 decks
12%synergy
Unstoppable Slasher
9.1%inclusion2 decks22 decks
7%synergy
Witch Enchanter
8.7%inclusion2 decks23 decks
2%synergy
Professional Face-Breaker
8.3%inclusion2 decks24 decks
-7%synergy
Bounty Agent
8.3%inclusion2 decks24 decks
8%synergy
Rakdos Ickspitter
8.3%inclusion2 decks24 decks
8%synergy
Species Specialist
8.3%inclusion2 decks24 decks
6%synergy
Alesha, Who Smiles at Death
8.3%inclusion2 decks24 decks
5%synergy
Zulaport Cutthroat
8.3%inclusion2 decks24 decks
-2%synergy
Knight of the White Orchid
8.3%inclusion2 decks24 decks
4%synergy
Massacre Wurm
8.3%inclusion2 decks24 decks
8%synergy
Instants
Crackling Doom
46%inclusion11 decks24 decks
29%synergy
Fracture
46%inclusion11 decks24 decks
40%synergy
Boros Charm
42%inclusion10 decks24 decks
12%synergy
Stroke of Midnight
42%inclusion10 decks24 decks
30%synergy
Swords to Plowshares
38%inclusion9 decks24 decks
-24%synergy
Mirrodin Avenged
38%inclusion9 decks24 decks
37%synergy
Wear // Tear
25%inclusion6 decks24 decks
14%synergy
Offer Immortality
25%inclusion6 decks24 decks
24%synergy
Path to Exile
25%inclusion6 decks24 decks
-22%synergy
Generous Gift
25%inclusion6 decks24 decks
7%synergy
Despark
21%inclusion5 decks24 decks
7%synergy
Mortify
21%inclusion5 decks24 decks
5%synergy
Swift Demise
20%inclusion1 decks5 decks
20%synergy
Dawn's Truce
18%inclusion4 decks22 decks
11%synergy
Dire Tactics
17%inclusion4 decks24 decks
14%synergy
Terminate
17%inclusion4 decks24 decks
4%synergy
Virulent Swipe
17%inclusion4 decks24 decks
17%synergy
Anguished Unmaking
17%inclusion4 decks24 decks
-17%synergy
Bladebrand
17%inclusion4 decks24 decks
16%synergy
Flawless Maneuver
13%inclusion3 decks24 decks
-2%synergy
Battle-Rage Blessing
13%inclusion3 decks24 decks
12%synergy
Rakdos Charm
13%inclusion3 decks24 decks
4%synergy
Deflecting Swat
13%inclusion3 decks24 decks
-3%synergy
Touch of Moonglove
13%inclusion3 decks24 decks
12%synergy
Untimely Malfunction
9.1%inclusion2 decks22 decks
4%synergy
Siege Smash
8.7%inclusion2 decks23 decks
8%synergy
Deadly Rollick
8.3%inclusion2 decks24 decks
-3%synergy
Toxin Analysis
8.3%inclusion2 decks24 decks
8%synergy
Lightning Bolt
8.3%inclusion2 decks24 decks
5%synergy
Tainted Strike
8.3%inclusion2 decks24 decks
8%synergy
Unbreakable Formation
8.3%inclusion2 decks24 decks
3%synergy
Malakir Rebirth
8.3%inclusion2 decks24 decks
3%synergy
Deflecting Palm
8.3%inclusion2 decks24 decks
2%synergy
Rebuff the Wicked
8.3%inclusion2 decks24 decks
7%synergy
Abrade
8.3%inclusion2 decks24 decks
2%synergy
Alesha's Legacy
6.7%inclusion1 decks15 decks
6%synergy
Sorceries
Open the Armory
50%inclusion12 decks24 decks
46%synergy
Mythos of Snapdax
46%inclusion11 decks24 decks
40%synergy
Painful Truths
42%inclusion10 decks24 decks
34%synergy
Ruinous Ultimatum
42%inclusion10 decks24 decks
2%synergy
Vandalblast
33%inclusion8 decks24 decks
23%synergy
Steelshaper's Gift
33%inclusion8 decks24 decks
30%synergy
Read the Bones
29%inclusion7 decks24 decks
20%synergy
Call of the Death-Dweller
25%inclusion6 decks24 decks
25%synergy
Tempt with Bunnies
23%inclusion5 decks22 decks
22%synergy
Night's Whisper
21%inclusion5 decks24 decks
8%synergy
Damn
17%inclusion4 decks24 decks
-1%synergy
Sign in Blood
13%inclusion3 decks24 decks
5%synergy
Rip Apart
13%inclusion3 decks24 decks
11%synergy
Austere Command
8.3%inclusion2 decks24 decks
1%synergy
Sevinne's Reclamation
8.3%inclusion2 decks24 decks
0%synergy
Merciless Eviction
8.3%inclusion2 decks24 decks
6%synergy
Faithless Looting
8.3%inclusion2 decks24 decks
-7%synergy
Blasphemous Act
8.3%inclusion2 decks24 decks
-14%synergy
Chandra's Ignition
8.3%inclusion2 decks24 decks
6%synergy
Utility Artifacts
Illusionist's Bracers
46%inclusion11 decks24 decks
44%synergy
Magewright's Stone
46%inclusion11 decks24 decks
45%synergy
Quietus Spike
42%inclusion10 decks24 decks
40%synergy
Shadowspear
42%inclusion10 decks24 decks
37%synergy
Gorgon Flail
38%inclusion9 decks24 decks
37%synergy
Hunter's Blowgun
38%inclusion9 decks24 decks
37%synergy
Glaring Spotlight
33%inclusion8 decks24 decks
33%synergy
Whispersilk Cloak
25%inclusion6 decks24 decks
19%synergy
Lightning Greaves
25%inclusion6 decks24 decks
-9%synergy
The Masamune
21%inclusion3 decks14 decks
21%synergy
Mithril Coat
21%inclusion5 decks24 decks
15%synergy
Robe of Stars
21%inclusion5 decks24 decks
20%synergy
Brotherhood Regalia
17%inclusion4 decks23 decks
14%synergy
Battlemage's Bracers
17%inclusion4 decks24 decks
16%synergy
Sword of the Animist
17%inclusion4 decks24 decks
8%synergy
Thousand-Year Elixir
13%inclusion3 decks24 decks
11%synergy
Haystack
13%inclusion3 decks24 decks
11%synergy
Wayfarer's Bauble
8.3%inclusion2 decks24 decks
0%synergy
Halo Fountain
8.3%inclusion2 decks24 decks
8%synergy
The Reaver Cleaver
8.3%inclusion2 decks24 decks
2%synergy
Hidden Blade
8.3%inclusion2 decks24 decks
8%synergy
Diamond Pick-Axe
8.3%inclusion2 decks24 decks
4%synergy
Hammer of Nazahn
8.3%inclusion2 decks24 decks
6%synergy
Dragonfire Blade
6.7%inclusion1 decks15 decks
5%synergy
Enchantments
Gift of Doom
42%inclusion10 decks24 decks
41%synergy
Phyrexian Arena
38%inclusion9 decks24 decks
19%synergy
Fighter Class
33%inclusion8 decks24 decks
31%synergy
All-Out Assault
33%inclusion5 decks15 decks
22%synergy
Dazzling Theater // Prop Room
32%inclusion7 decks22 decks
30%synergy
Sigarda's Aid
21%inclusion5 decks24 decks
18%synergy
At Knifepoint
21%inclusion5 decks24 decks
19%synergy
Black Market Connections
21%inclusion5 decks24 decks
5%synergy
Black Market
17%inclusion4 decks24 decks
11%synergy
Reconnaissance
17%inclusion4 decks24 decks
5%synergy
Revel in Riches
17%inclusion4 decks24 decks
10%synergy
Aspect of Gorgon
13%inclusion3 decks24 decks
12%synergy
Forge Anew
13%inclusion3 decks24 decks
10%synergy
Feast of the Victorious Dead
13%inclusion3 decks24 decks
12%synergy
Grave Betrayal
13%inclusion3 decks24 decks
12%synergy
Kaya's Ghostform
13%inclusion3 decks24 decks
10%synergy
Life Insurance
8.3%inclusion2 decks24 decks
6%synergy
Retreat to Hagra
8.3%inclusion2 decks24 decks
8%synergy
Eternal Thirst
8.3%inclusion2 decks24 decks
8%synergy
Agent of the Shadow Thieves
8.3%inclusion2 decks24 decks
8%synergy
Curse of Opulence
8.3%inclusion2 decks24 decks
2%synergy
Trouble in Pairs
8.3%inclusion2 decks24 decks
3%synergy
Sticky Fingers
8.3%inclusion2 decks24 decks
7%synergy
Bitterblossom
8.3%inclusion2 decks24 decks
5%synergy
Spiteful Banditry
8.3%inclusion2 decks24 decks
6%synergy
Planeswalkers
Vraska, Betrayal's Sting
17%inclusion4 decks24 decks
16%synergy
Utility Lands
Vault of the Archangel
63%inclusion15 decks24 decks
40%synergy
Rogue's Passage
58%inclusion14 decks24 decks
35%synergy
Arcane Lighthouse
54%inclusion13 decks24 decks
53%synergy
Bojuka Bog
33%inclusion8 decks24 decks
2%synergy
Detection Tower
33%inclusion8 decks24 decks
33%synergy
Axgard Armory
29%inclusion7 decks24 decks
27%synergy
Buried Ruin
25%inclusion6 decks24 decks
22%synergy
Karn's Bastion
21%inclusion5 decks24 decks
20%synergy
Reliquary Tower
17%inclusion4 decks24 decks
1%synergy
Urborg, Tomb of Yawgmoth
17%inclusion4 decks24 decks
3%synergy
Command Beacon
13%inclusion3 decks24 decks
7%synergy
Sunhome, Fortress of the Legion
13%inclusion3 decks24 decks
9%synergy
Monumental Henge
8.7%inclusion2 decks23 decks
8%synergy
Shizo, Death's Storehouse
8.3%inclusion2 decks24 decks
1%synergy
Urza's Saga
8.3%inclusion2 decks24 decks
4%synergy
Temple of the False God
8.3%inclusion2 decks24 decks
2%synergy
Mana Artifacts
Arcane Signet
96%inclusion23 decks24 decks
10%synergy
Sol Ring
96%inclusion23 decks24 decks
7%synergy
Patriar's Seal
67%inclusion16 decks24 decks
65%synergy
Bounty Board
50%inclusion12 decks24 decks
48%synergy
Rakdos Signet
46%inclusion11 decks24 decks
17%synergy
Boros Signet
42%inclusion10 decks24 decks
14%synergy
Orzhov Signet
42%inclusion10 decks24 decks
11%synergy
Talisman of Conviction
29%inclusion7 decks24 decks
-12%synergy
Fellwar Stone
29%inclusion7 decks24 decks
1%synergy
Talisman of Hierarchy
29%inclusion7 decks24 decks
-12%synergy
Talisman of Indulgence
25%inclusion6 decks24 decks
-12%synergy
Bandit's Haul
21%inclusion5 decks24 decks
20%synergy
Commander's Sphere
17%inclusion4 decks24 decks
3%synergy
Aetheric Amplifier
15%inclusion3 decks20 decks
15%synergy
Lands
Command Tower
100%inclusion24 decks24 decks
8%synergy
Swamp
96%inclusion23 decks24 decks
1%synergy
Mountain
96%inclusion23 decks24 decks
2%synergy
Plains
96%inclusion23 decks24 decks
1%synergy
Nomad Outpost
63%inclusion15 decks24 decks
4%synergy
Godless Shrine
63%inclusion15 decks24 decks
15%synergy
Sacred Foundry
54%inclusion13 decks24 decks
9%synergy
Clifftop Retreat
54%inclusion13 decks24 decks
3%synergy
Savai Triome
50%inclusion12 decks24 decks
12%synergy
Exotic Orchard
50%inclusion12 decks24 decks
-2%synergy
Blood Crypt
50%inclusion12 decks24 decks
6%synergy
Dragonskull Summit
50%inclusion12 decks24 decks
-2%synergy
Isolated Chapel
50%inclusion12 decks24 decks
-3%synergy
Caves of Koilos
42%inclusion10 decks24 decks
2%synergy
Luxury Suite
38%inclusion9 decks24 decks
6%synergy
Arid Mesa
38%inclusion9 decks24 decks
6%synergy
Spectator Seating
38%inclusion9 decks24 decks
6%synergy
Forbidden Orchard
38%inclusion9 decks24 decks
35%synergy
Marsh Flats
38%inclusion9 decks24 decks
6%synergy
Vault of Champions
38%inclusion9 decks24 decks
5%synergy
Terramorphic Expanse
33%inclusion8 decks24 decks
14%synergy
Smoldering Marsh
33%inclusion8 decks24 decks
-3%synergy
Battlefield Forge
33%inclusion8 decks24 decks
-7%synergy
Evolving Wilds
29%inclusion7 decks24 decks
3%synergy
Bloodstained Mire
29%inclusion7 decks24 decks
-4%synergy
Shattered Landscape
26%inclusion6 decks23 decks
7%synergy
Path of Ancestry
25%inclusion6 decks24 decks
-13%synergy
Shattered Sanctum
25%inclusion6 decks24 decks
1%synergy
Temple of Silence
25%inclusion6 decks24 decks
3%synergy
Sulfurous Springs
25%inclusion6 decks24 decks
-3%synergy
Shadowblood Ridge
21%inclusion5 decks24 decks
6%synergy
Temple of Triumph
21%inclusion5 decks24 decks
-1%synergy
Sundown Pass
17%inclusion4 decks24 decks
-4%synergy
Rugged Prairie
17%inclusion4 decks24 decks
-1%synergy
Haunted Ridge
17%inclusion4 decks24 decks
-3%synergy
Blightstep Pathway
17%inclusion4 decks24 decks
9%synergy
Rakdos Carnarium
13%inclusion3 decks24 decks
1%synergy
Shadowy Backstreet
13%inclusion3 decks24 decks
2%synergy
Concealed Courtyard
13%inclusion3 decks24 decks
7%synergy
Fetid Heath
13%inclusion3 decks24 decks
-9%synergy
Tainted Field
13%inclusion3 decks24 decks
1%synergy
Temple of Malice
13%inclusion3 decks24 decks
-4%synergy
Boros Garrison
13%inclusion3 decks24 decks
0%synergy
Orzhov Basilica
13%inclusion3 decks24 decks
-1%synergy
Plateau
13%inclusion3 decks24 decks
0%synergy
Scrubland
13%inclusion3 decks24 decks
0%synergy
Vibrant Cityscape
11%inclusion1 decks9 decks
10%synergy
Witch Enchanter
8.7%inclusion2 decks23 decks
2%synergy
Badlands
8.3%inclusion2 decks24 decks
-4%synergy
Brightclimb Pathway
8.3%inclusion2 decks24 decks
0%synergy
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