Altaïr, Brotherhood Mentor (Commander) - Activated Abilities

Original Name:

Kelsien, the PlagueKelsien, the Plague

Altaïr, Brotherhood Mentor
Rank #453
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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Utility Lands
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The Ten Rings
25%inclusion1 decks4 decks
25%synergy
Super-Soldier Serum
25%inclusion1 decks4 decks
25%synergy
High Synergy Cards
Basilisk Collar
92%inclusion22 decks24 decks
87%synergy
Rune of Mortality
83%inclusion20 decks24 decks
82%synergy
Shay Cormac
83%inclusion20 decks24 decks
80%synergy
Minthara, Merciless Soul
75%inclusion18 decks24 decks
73%synergy
Sting, the Glinting Dagger
75%inclusion18 decks24 decks
73%synergy
Vorpal Sword
75%inclusion18 decks24 decks
73%synergy
Falthis, Shadowcat Familiar
71%inclusion17 decks24 decks
70%synergy
Otharri, Suns' Glory
75%inclusion18 decks24 decks
70%synergy
Mari, the Killing Quill
75%inclusion18 decks24 decks
69%synergy
Drumbellower
71%inclusion17 decks24 decks
69%synergy
Top Cards
Morbid Opportunist
75%inclusion18 decks24 decks
56%synergy
Swiftfoot Boots
71%inclusion17 decks24 decks
39%synergy
You Are Already Dead
67%inclusion16 decks24 decks
65%synergy
Thornbite Staff
67%inclusion16 decks24 decks
65%synergy
Termination Facilitator
63%inclusion15 decks24 decks
61%synergy
General's Enforcer
63%inclusion15 decks24 decks
55%synergy
Mathas, Fiend Seeker
63%inclusion15 decks24 decks
61%synergy
Gorgon's Head
58%inclusion14 decks24 decks
57%synergy
Taii Wakeen, Perfect Shot
58%inclusion14 decks24 decks
58%synergy
Humble Defector
58%inclusion14 decks24 decks
56%synergy
Game Changers
Demonic Tutor
25%inclusion6 decks24 decks
6%synergy
Enlightened Tutor
21%inclusion5 decks24 decks
9%synergy
Smothering Tithe
17%inclusion4 decks24 decks
-7%synergy
Farewell
17%inclusion4 decks24 decks
7%synergy
Teferi's Protection
13%inclusion3 decks24 decks
-6%synergy
Vampiric Tutor
13%inclusion3 decks24 decks
-2%synergy
Orcish Bowmasters
8.3%inclusion2 decks24 decks
3%synergy
Creatures
Magda, the Hoardmaster
58%inclusion14 decks24 decks
56%synergy
Lae'zel, Vlaakith's Champion
58%inclusion14 decks24 decks
57%synergy
Goblin Sharpshooter
54%inclusion13 decks24 decks
54%synergy
Ertha Jo, Frontier Mentor
46%inclusion11 decks24 decks
45%synergy
Maha, Its Feathers Night
46%inclusion11 decks24 decks
45%synergy
Harvester of Souls
42%inclusion10 decks24 decks
39%synergy
Mother of Runes
42%inclusion10 decks24 decks
34%synergy
Marvin, Murderous Mimic
38%inclusion9 decks24 decks
36%synergy
White Plume Adventurer
38%inclusion9 decks24 decks
36%synergy
Daxos the Returned
33%inclusion8 decks24 decks
33%synergy
Massacre Girl, Known Killer
33%inclusion8 decks24 decks
31%synergy
Athreos, Shroud-Veiled
29%inclusion7 decks24 decks
28%synergy
Slaughter Specialist
29%inclusion7 decks24 decks
28%synergy
Blood Cultist
25%inclusion6 decks24 decks
25%synergy
Puresteel Paladin
25%inclusion6 decks24 decks
21%synergy
Sun Titan
25%inclusion6 decks24 decks
14%synergy
Kalemne, Disciple of Iroas
25%inclusion6 decks24 decks
24%synergy
Robaran Mercenaries
21%inclusion5 decks24 decks
21%synergy
Ankle Shanker
21%inclusion5 decks24 decks
18%synergy
Queen Marchesa
21%inclusion5 decks24 decks
15%synergy
Archetype of Finality
21%inclusion5 decks24 decks
20%synergy
Stoneforge Mystic
17%inclusion4 decks24 decks
14%synergy
Void Beckoner
17%inclusion4 decks24 decks
16%synergy
Zagras, Thief of Heartbeats
17%inclusion4 decks24 decks
16%synergy
Tor Wauki the Younger
17%inclusion4 decks24 decks
16%synergy
Qarsi Revenant
17%inclusion3 decks18 decks
14%synergy
Akiri, Fearless Voyager
17%inclusion4 decks24 decks
15%synergy
Azula, Ruthless Firebender
17%inclusion2 decks12 decks
16%synergy
Emeritus of Truce
17%inclusion1 decks6 decks
16%synergy
Professional Face-Breaker
13%inclusion3 decks24 decks
-3%synergy
Archivist of Oghma
13%inclusion3 decks24 decks
10%synergy
Blood Artist
13%inclusion3 decks24 decks
-6%synergy
Assault Intercessor
13%inclusion3 decks24 decks
12%synergy
Esper Sentinel
13%inclusion3 decks24 decks
-6%synergy
Sram, Senior Edificer
13%inclusion3 decks24 decks
10%synergy
Torbran, Thane of Red Fell
13%inclusion3 decks24 decks
12%synergy
Royal Assassin
13%inclusion3 decks24 decks
9%synergy
Cunning Sparkmage
13%inclusion3 decks24 decks
12%synergy
Bureau Headmaster
13%inclusion3 decks24 decks
12%synergy
Gisa, Glorious Resurrector
13%inclusion3 decks24 decks
12%synergy
Cloud, Midgar Mercenary
11%inclusion2 decks18 decks
10%synergy
Casey Jones, Back Alley Brute
11%inclusion1 decks9 decks
11%synergy
Village Pillagers
9.1%inclusion1 decks11 decks
9%synergy
Witch Enchanter
8.3%inclusion2 decks24 decks
1%synergy
Bounty Agent
8.3%inclusion2 decks24 decks
8%synergy
Metastatic Evangel
8.3%inclusion2 decks24 decks
8%synergy
Deathbringer Thoctar
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
Unstoppable Slasher
8.3%inclusion2 decks24 decks
7%synergy
Instants
Stroke of Midnight
42%inclusion10 decks24 decks
30%synergy
Mirrodin Avenged
42%inclusion10 decks24 decks
41%synergy
Crackling Doom
42%inclusion10 decks24 decks
25%synergy
Fracture
42%inclusion10 decks24 decks
36%synergy
Boros Charm
38%inclusion9 decks24 decks
9%synergy
Swords to Plowshares
38%inclusion9 decks24 decks
-24%synergy
Path to Exile
29%inclusion7 decks24 decks
-18%synergy
Generous Gift
25%inclusion6 decks24 decks
8%synergy
Wear // Tear
21%inclusion5 decks24 decks
10%synergy
Despark
21%inclusion5 decks24 decks
7%synergy
Offer Immortality
21%inclusion5 decks24 decks
20%synergy
Mortify
21%inclusion5 decks24 decks
6%synergy
Dawn's Truce
17%inclusion4 decks24 decks
10%synergy
Terminate
17%inclusion4 decks24 decks
4%synergy
Virulent Swipe
17%inclusion4 decks24 decks
17%synergy
Anguished Unmaking
17%inclusion4 decks24 decks
-17%synergy
Deflecting Swat
17%inclusion4 decks24 decks
1%synergy
Bladebrand
17%inclusion4 decks24 decks
16%synergy
Dire Tactics
13%inclusion3 decks24 decks
10%synergy
Flawless Maneuver
13%inclusion3 decks24 decks
-2%synergy
Rakdos Charm
13%inclusion3 decks24 decks
3%synergy
Tainted Strike
13%inclusion3 decks24 decks
12%synergy
Touch of Moonglove
13%inclusion3 decks24 decks
12%synergy
Swift Demise
11%inclusion1 decks9 decks
11%synergy
Deadly Rollick
8.3%inclusion2 decks24 decks
-3%synergy
Toxin Analysis
8.3%inclusion2 decks24 decks
8%synergy
Untimely Malfunction
8.3%inclusion2 decks24 decks
3%synergy
Lightning Bolt
8.3%inclusion2 decks24 decks
5%synergy
Siege Smash
8.3%inclusion2 decks24 decks
8%synergy
Battle-Rage Blessing
8.3%inclusion2 decks24 decks
8%synergy
Malakir Rebirth
8.3%inclusion2 decks24 decks
3%synergy
Abrade
8.3%inclusion2 decks24 decks
2%synergy
Alesha's Legacy
5.6%inclusion1 decks18 decks
5%synergy
Sorceries
Open the Armory
46%inclusion11 decks24 decks
42%synergy
Mythos of Snapdax
42%inclusion10 decks24 decks
36%synergy
Painful Truths
42%inclusion10 decks24 decks
34%synergy
Ruinous Ultimatum
42%inclusion10 decks24 decks
2%synergy
Steelshaper's Gift
38%inclusion9 decks24 decks
34%synergy
Vandalblast
33%inclusion8 decks24 decks
23%synergy
Read the Bones
25%inclusion6 decks24 decks
17%synergy
Tempt with Bunnies
21%inclusion5 decks24 decks
20%synergy
Night's Whisper
21%inclusion5 decks24 decks
7%synergy
Call of the Death-Dweller
21%inclusion5 decks24 decks
20%synergy
Damn
17%inclusion4 decks24 decks
-1%synergy
Sign in Blood
13%inclusion3 decks24 decks
5%synergy
Rip Apart
13%inclusion3 decks24 decks
12%synergy
Austere Command
8.3%inclusion2 decks24 decks
1%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
-15%synergy
Chandra's Ignition
8.3%inclusion2 decks24 decks
6%synergy
Utility Artifacts
Magewright's Stone
54%inclusion13 decks24 decks
53%synergy
Quietus Spike
50%inclusion12 decks24 decks
49%synergy
Illusionist's Bracers
50%inclusion12 decks24 decks
49%synergy
Shadowspear
46%inclusion11 decks24 decks
42%synergy
Gorgon Flail
46%inclusion11 decks24 decks
45%synergy
Hunter's Blowgun
42%inclusion10 decks24 decks
41%synergy
Glaring Spotlight
33%inclusion8 decks24 decks
33%synergy
Whispersilk Cloak
29%inclusion7 decks24 decks
24%synergy
Lightning Greaves
25%inclusion6 decks24 decks
-9%synergy
The Masamune
24%inclusion4 decks17 decks
23%synergy
Mithril Coat
21%inclusion5 decks24 decks
16%synergy
Brotherhood Regalia
21%inclusion5 decks24 decks
18%synergy
Robe of Stars
17%inclusion4 decks24 decks
16%synergy
Thousand-Year Elixir
17%inclusion4 decks24 decks
16%synergy
Battlemage's Bracers
17%inclusion4 decks24 decks
16%synergy
Haystack
17%inclusion4 decks24 decks
15%synergy
Sword of the Animist
13%inclusion3 decks24 decks
4%synergy
Hammer of Nazahn
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
3%synergy
Hidden Blade
8.3%inclusion2 decks24 decks
8%synergy
Umbral Mantle
8.3%inclusion2 decks24 decks
8%synergy
Skullclamp
8.3%inclusion2 decks24 decks
-21%synergy
Sword of Truth and Justice
8.3%inclusion2 decks24 decks
8%synergy
Helm of the Host
8.3%inclusion2 decks24 decks
3%synergy
Scythe of the Wretched
8.3%inclusion2 decks24 decks
8%synergy
Sword of Wealth and Power
8.3%inclusion2 decks24 decks
7%synergy
Champion's Helm
8.3%inclusion2 decks24 decks
7%synergy
Puppet Strings
8.3%inclusion2 decks24 decks
8%synergy
Dragonfire Blade
5.6%inclusion1 decks18 decks
4%synergy
Enchantments
Gift of Doom
42%inclusion10 decks24 decks
41%synergy
Fighter Class
38%inclusion9 decks24 decks
35%synergy
Dazzling Theater // Prop Room
33%inclusion8 decks24 decks
32%synergy
All-Out Assault
33%inclusion6 decks18 decks
22%synergy
Phyrexian Arena
33%inclusion8 decks24 decks
15%synergy
Reconnaissance
25%inclusion6 decks24 decks
13%synergy
Sigarda's Aid
25%inclusion6 decks24 decks
22%synergy
Black Market Connections
25%inclusion6 decks24 decks
9%synergy
Black Market
21%inclusion5 decks24 decks
16%synergy
At Knifepoint
21%inclusion5 decks24 decks
19%synergy
Revel in Riches
21%inclusion5 decks24 decks
15%synergy
Forge Anew
17%inclusion4 decks24 decks
14%synergy
Grave Betrayal
17%inclusion4 decks24 decks
16%synergy
Changing Loyalty
14%inclusion1 decks7 decks
14%synergy
Aspect of Gorgon
13%inclusion3 decks24 decks
12%synergy
Feast of the Victorious Dead
13%inclusion3 decks24 decks
12%synergy
Gift of Immortality
8.3%inclusion2 decks24 decks
7%synergy
Forging the Tyrite Sword
8.3%inclusion2 decks24 decks
8%synergy
Life Insurance
8.3%inclusion2 decks24 decks
6%synergy
Eternal Thirst
8.3%inclusion2 decks24 decks
8%synergy
Kaya's Ghostform
8.3%inclusion2 decks24 decks
6%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
7%synergy
Planeswalkers
Vraska, Betrayal's Sting
13%inclusion3 decks24 decks
12%synergy
Utility Lands
Rogue's Passage
63%inclusion15 decks24 decks
39%synergy
Vault of the Archangel
58%inclusion14 decks24 decks
35%synergy
Arcane Lighthouse
54%inclusion13 decks24 decks
53%synergy
Bojuka Bog
33%inclusion8 decks24 decks
2%synergy
Detection Tower
29%inclusion7 decks24 decks
29%synergy
Axgard Armory
25%inclusion6 decks24 decks
23%synergy
Buried Ruin
21%inclusion5 decks24 decks
18%synergy
Karn's Bastion
21%inclusion5 decks24 decks
20%synergy
Reliquary Tower
21%inclusion5 decks24 decks
6%synergy
Urborg, Tomb of Yawgmoth
17%inclusion4 decks24 decks
4%synergy
Shizo, Death's Storehouse
13%inclusion3 decks24 decks
6%synergy
Command Beacon
13%inclusion3 decks24 decks
7%synergy
Sunhome, Fortress of the Legion
13%inclusion3 decks24 decks
9%synergy
Temple of the False God
13%inclusion3 decks24 decks
7%synergy
Urza's Saga
8.3%inclusion2 decks24 decks
4%synergy
Monumental Henge
8.3%inclusion2 decks24 decks
7%synergy
Secret Tunnel
8.3%inclusion1 decks12 decks
7%synergy
Mana Artifacts
Sol Ring
96%inclusion23 decks24 decks
8%synergy
Arcane Signet
92%inclusion22 decks24 decks
6%synergy
Patriar's Seal
67%inclusion16 decks24 decks
65%synergy
Bounty Board
50%inclusion12 decks24 decks
48%synergy
Rakdos Signet
46%inclusion11 decks24 decks
18%synergy
Boros Signet
42%inclusion10 decks24 decks
15%synergy
Orzhov Signet
42%inclusion10 decks24 decks
12%synergy
Fellwar Stone
29%inclusion7 decks24 decks
1%synergy
Bandit's Haul
25%inclusion6 decks24 decks
24%synergy
Talisman of Indulgence
21%inclusion5 decks24 decks
-16%synergy
Talisman of Conviction
21%inclusion5 decks24 decks
-21%synergy
Talisman of Hierarchy
21%inclusion5 decks24 decks
-20%synergy
Aetheric Amplifier
13%inclusion3 decks23 decks
13%synergy
Commander's Sphere
13%inclusion3 decks24 decks
-1%synergy
Chromatic Lantern
8.3%inclusion2 decks24 decks
-2%synergy
Mox Amber
8.3%inclusion2 decks24 decks
4%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
Godless Shrine
71%inclusion17 decks24 decks
23%synergy
Nomad Outpost
67%inclusion16 decks24 decks
9%synergy
Sacred Foundry
63%inclusion15 decks24 decks
17%synergy
Blood Crypt
58%inclusion14 decks24 decks
13%synergy
Savai Triome
54%inclusion13 decks24 decks
17%synergy
Exotic Orchard
54%inclusion13 decks24 decks
1%synergy
Clifftop Retreat
54%inclusion13 decks24 decks
2%synergy
Dragonskull Summit
50%inclusion12 decks24 decks
-3%synergy
Isolated Chapel
50%inclusion12 decks24 decks
-4%synergy
Luxury Suite
42%inclusion10 decks24 decks
11%synergy
Arid Mesa
42%inclusion10 decks24 decks
10%synergy
Marsh Flats
42%inclusion10 decks24 decks
10%synergy
Caves of Koilos
38%inclusion9 decks24 decks
-2%synergy
Spectator Seating
38%inclusion9 decks24 decks
6%synergy
Forbidden Orchard
38%inclusion9 decks24 decks
35%synergy
Vault of Champions
38%inclusion9 decks24 decks
5%synergy
Smoldering Marsh
33%inclusion8 decks24 decks
-4%synergy
Path of Ancestry
33%inclusion8 decks24 decks
-5%synergy
Shattered Sanctum
33%inclusion8 decks24 decks
7%synergy
Bloodstained Mire
33%inclusion8 decks24 decks
0%synergy
Terramorphic Expanse
29%inclusion7 decks24 decks
11%synergy
Battlefield Forge
29%inclusion7 decks24 decks
-12%synergy
Shattered Landscape
29%inclusion7 decks24 decks
11%synergy
Temple of Silence
25%inclusion6 decks24 decks
3%synergy
Sulfurous Springs
25%inclusion6 decks24 decks
-4%synergy
Fetid Heath
21%inclusion5 decks24 decks
-1%synergy
Temple of Triumph
21%inclusion5 decks24 decks
-0%synergy
Rugged Prairie
21%inclusion5 decks24 decks
3%synergy
Evolving Wilds
21%inclusion5 decks24 decks
-5%synergy
Rakdos Carnarium
17%inclusion4 decks24 decks
6%synergy
Shadowblood Ridge
17%inclusion4 decks24 decks
1%synergy
Sundown Pass
17%inclusion4 decks24 decks
-5%synergy
Boros Garrison
17%inclusion4 decks24 decks
5%synergy
Orzhov Basilica
17%inclusion4 decks24 decks
4%synergy
Plateau
17%inclusion4 decks24 decks
4%synergy
Scrubland
17%inclusion4 decks24 decks
4%synergy
Haunted Ridge
17%inclusion4 decks24 decks
-3%synergy
Blightstep Pathway
17%inclusion4 decks24 decks
9%synergy
Badlands
13%inclusion3 decks24 decks
0%synergy
Shadowy Backstreet
13%inclusion3 decks24 decks
2%synergy
Concealed Courtyard
13%inclusion3 decks24 decks
7%synergy
Tainted Field
13%inclusion3 decks24 decks
1%synergy
Temple of Malice
13%inclusion3 decks24 decks
-3%synergy
Plaza of Heroes
13%inclusion3 decks24 decks
8%synergy
Radiant Summit
13%inclusion2 decks16 decks
9%synergy
Witch Enchanter
8.3%inclusion2 decks24 decks
1%synergy
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