Cecil Harvey // Falthis, Shadowcat Familiar (Commander) - Optimized

Cecil Harvey // Falthis, Shadowcat Familiar
Rank #3,687
7decks
As CommanderCecil HarveyFalthis, Shadowcat FamiliarAverage DeckDecks
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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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Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
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Erode
33%inclusion1 decks3 decks
24%synergy
Scheming Silvertongue
33%inclusion1 decks3 decks
26%synergy
Hatut Zeraze Strike Force
33%inclusion1 decks3 decks
33%synergy
Everett K. Ross, Hapless Attaché
33%inclusion1 decks3 decks
33%synergy
High Synergy Cards
Dark Ritual
86%inclusion6 decks7 decks
61%synergy
Silence
57%inclusion4 decks7 decks
53%synergy
Fracture
71%inclusion5 decks7 decks
51%synergy
Vanishing Verse
57%inclusion4 decks7 decks
50%synergy
Diabolic Intent
57%inclusion4 decks7 decks
47%synergy
Path to Exile
86%inclusion6 decks7 decks
36%synergy
Damn
57%inclusion4 decks7 decks
25%synergy
Anguished Unmaking
57%inclusion4 decks7 decks
16%synergy
Top Cards
Swords to Plowshares
57%inclusion4 decks7 decks
-6%synergy
Game Changers
Demonic Tutor
71%inclusion5 decks7 decks
56%synergy
Chrome Mox
71%inclusion5 decks7 decks
69%synergy
Vampiric Tutor
71%inclusion5 decks7 decks
61%synergy
Enlightened Tutor
57%inclusion4 decks7 decks
46%synergy
Opposition Agent
43%inclusion3 decks7 decks
40%synergy
Ancient Tomb
43%inclusion3 decks7 decks
37%synergy
Bolas's Citadel
43%inclusion3 decks7 decks
30%synergy
Ad Nauseam
43%inclusion3 decks7 decks
41%synergy
Mana Vault
43%inclusion3 decks7 decks
41%synergy
Mox Diamond
43%inclusion3 decks7 decks
41%synergy
Creatures
Soul's Attendant
43%inclusion3 decks7 decks
31%synergy
Lotho, Corrupt Shirriff
43%inclusion3 decks7 decks
23%synergy
Serra Ascendant
43%inclusion3 decks7 decks
36%synergy
Kambal, Consul of Allocation
43%inclusion3 decks7 decks
29%synergy
Aven Mindcensor
43%inclusion3 decks7 decks
40%synergy
Drannith Magistrate
43%inclusion3 decks7 decks
39%synergy
Grand Abolisher
43%inclusion3 decks7 decks
34%synergy
Soul Warden
43%inclusion3 decks7 decks
26%synergy
Darkstar Augur
29%inclusion2 decks7 decks
24%synergy
Archivist of Oghma
29%inclusion2 decks7 decks
21%synergy
Doorkeeper Thrull
29%inclusion2 decks7 decks
28%synergy
Weathered Wayfarer
29%inclusion2 decks7 decks
25%synergy
Giver of Runes
29%inclusion2 decks7 decks
25%synergy
Mother of Runes
29%inclusion2 decks7 decks
19%synergy
Cathar Commando
29%inclusion2 decks7 decks
22%synergy
Sheoldred, Whispering One
29%inclusion2 decks7 decks
26%synergy
Esper Sentinel
29%inclusion2 decks7 decks
11%synergy
Vito, Thorn of the Dusk Rose
29%inclusion2 decks7 decks
8%synergy
Tormented Soul
29%inclusion2 decks7 decks
28%synergy
Dauthi Voidwalker
29%inclusion2 decks7 decks
22%synergy
Archangel of Tithes
29%inclusion2 decks7 decks
26%synergy
Enduring Tenacity
29%inclusion2 decks7 decks
17%synergy
Voice of Victory
29%inclusion2 decks7 decks
22%synergy
Sun Titan
29%inclusion2 decks7 decks
17%synergy
Kunoros, Hound of Athreos
29%inclusion2 decks7 decks
26%synergy
Gwenom, Remorseless
29%inclusion2 decks7 decks
27%synergy
Abigale, Eloquent First-Year
20%inclusion1 decks5 decks
17%synergy
Savanti Romero, Time's Exile
20%inclusion1 decks5 decks
20%synergy
Momo, Playful Pet
17%inclusion1 decks6 decks
16%synergy
Mai, Scornful Striker
17%inclusion1 decks6 decks
14%synergy
Eight-and-a-Half-Tails
14%inclusion1 decks7 decks
13%synergy
Nethergoyf
14%inclusion1 decks7 decks
14%synergy
Swooping Lookout
14%inclusion1 decks7 decks
14%synergy
Grief
14%inclusion1 decks7 decks
14%synergy
Indulging Patrician
14%inclusion1 decks7 decks
9%synergy
Hope of Ghirapur
14%inclusion1 decks7 decks
14%synergy
Leonin Abunas
14%inclusion1 decks7 decks
14%synergy
Reveillark
14%inclusion1 decks7 decks
12%synergy
Skrelv, Defector Mite
14%inclusion1 decks7 decks
10%synergy
Resplendent Angel
14%inclusion1 decks7 decks
10%synergy
Tomik, Wielder of Law
14%inclusion1 decks7 decks
11%synergy
Blood Artist
14%inclusion1 decks7 decks
-15%synergy
Sheoldred, the Apocalypse
14%inclusion1 decks7 decks
8%synergy
Stoneforge Mystic
14%inclusion1 decks7 decks
13%synergy
Erebos, God of the Dead
14%inclusion1 decks7 decks
12%synergy
Gray Merchant of Asphodel
14%inclusion1 decks7 decks
4%synergy
Dark Confidant
14%inclusion1 decks7 decks
7%synergy
Lurrus of the Dream-Den
14%inclusion1 decks7 decks
5%synergy
Charismatic Conqueror
14%inclusion1 decks7 decks
3%synergy
Bloodletter of Aclazotz
14%inclusion1 decks7 decks
7%synergy
Instants
Culling the Weak
43%inclusion3 decks7 decks
38%synergy
Angel's Grace
43%inclusion3 decks7 decks
40%synergy
Teferi's Protection
29%inclusion2 decks7 decks
14%synergy
Insidious Dreams
29%inclusion2 decks7 decks
29%synergy
Flare of Fortitude
29%inclusion2 decks7 decks
21%synergy
Cabal Ritual
29%inclusion2 decks7 decks
26%synergy
Withering Boon
29%inclusion2 decks7 decks
28%synergy
Flawless Maneuver
29%inclusion2 decks7 decks
20%synergy
Disenchant
29%inclusion2 decks7 decks
25%synergy
Reprieve
29%inclusion2 decks7 decks
20%synergy
Enter the Avatar State
17%inclusion1 decks6 decks
16%synergy
Deadly Rollick
14%inclusion1 decks7 decks
2%synergy
Dire Tactics
14%inclusion1 decks7 decks
12%synergy
Entomb
14%inclusion1 decks7 decks
9%synergy
Go for the Throat
14%inclusion1 decks7 decks
10%synergy
Tithe
14%inclusion1 decks7 decks
14%synergy
Imp's Mischief
14%inclusion1 decks7 decks
10%synergy
Tainted Pact
14%inclusion1 decks7 decks
14%synergy
Dawn's Truce
14%inclusion1 decks7 decks
7%synergy
Sheoldred's Edict
14%inclusion1 decks7 decks
12%synergy
Soul Shatter
14%inclusion1 decks7 decks
12%synergy
Vraska's Fall
14%inclusion1 decks7 decks
13%synergy
Slaughter Pact
14%inclusion1 decks7 decks
14%synergy
Debt of Loyalty
14%inclusion1 decks7 decks
14%synergy
Cling to Dust
14%inclusion1 decks7 decks
13%synergy
Dawn Charm
14%inclusion1 decks7 decks
12%synergy
Rain of Filth
14%inclusion1 decks7 decks
14%synergy
Despark
14%inclusion1 decks7 decks
-16%synergy
Vona's Hunger
14%inclusion1 decks7 decks
13%synergy
Heliod's Intervention
14%inclusion1 decks7 decks
10%synergy
Feign Death
14%inclusion1 decks7 decks
13%synergy
Generous Gift
14%inclusion1 decks7 decks
-8%synergy
Kaya's Guile
14%inclusion1 decks7 decks
11%synergy
Liliana's Triumph
14%inclusion1 decks7 decks
14%synergy
Sorceries
Sickening Dreams
43%inclusion3 decks7 decks
43%synergy
Reanimate
43%inclusion3 decks7 decks
27%synergy
Toxic Deluge
43%inclusion3 decks7 decks
26%synergy
Imperial Seal
29%inclusion2 decks7 decks
26%synergy
Duress
29%inclusion2 decks7 decks
28%synergy
Profane Tutor
29%inclusion2 decks7 decks
27%synergy
Wrath of God
29%inclusion2 decks7 decks
23%synergy
Inquisition of Kozilek
29%inclusion2 decks7 decks
28%synergy
Unearth
29%inclusion2 decks7 decks
23%synergy
Insatiable Avarice
29%inclusion2 decks7 decks
25%synergy
Sign in Blood
29%inclusion2 decks7 decks
11%synergy
Night's Whisper
29%inclusion2 decks7 decks
11%synergy
Cabal Therapy
14%inclusion1 decks7 decks
14%synergy
Unmask
14%inclusion1 decks7 decks
14%synergy
Unmarked Grave
14%inclusion1 decks7 decks
12%synergy
Victimize
14%inclusion1 decks7 decks
-3%synergy
Diabolic Tutor
14%inclusion1 decks7 decks
9%synergy
Ravages of War
14%inclusion1 decks7 decks
14%synergy
Split Up
14%inclusion1 decks7 decks
13%synergy
Open the Armory
14%inclusion1 decks7 decks
10%synergy
Virtus's Maneuver
14%inclusion1 decks7 decks
14%synergy
Merciless Eviction
14%inclusion1 decks7 decks
10%synergy
Blackmail
14%inclusion1 decks7 decks
14%synergy
Vicious Rumors
14%inclusion1 decks7 decks
14%synergy
Torment of Hailfire
14%inclusion1 decks7 decks
11%synergy
Infectious Inquiry
14%inclusion1 decks7 decks
13%synergy
Gerrard's Verdict
14%inclusion1 decks7 decks
14%synergy
Persist
14%inclusion1 decks7 decks
13%synergy
Exsanguinate
14%inclusion1 decks7 decks
1%synergy
Buried Alive
14%inclusion1 decks7 decks
8%synergy
Hymn to Tourach
14%inclusion1 decks7 decks
14%synergy
Idyllic Tutor
14%inclusion1 decks7 decks
11%synergy
Debt to the Deathless
14%inclusion1 decks7 decks
4%synergy
Armageddon
14%inclusion1 decks7 decks
14%synergy
Scheming Symmetry
14%inclusion1 decks7 decks
13%synergy
Steelshaper's Gift
14%inclusion1 decks7 decks
13%synergy
Mire in Misery
14%inclusion1 decks7 decks
14%synergy
Fragmentize
14%inclusion1 decks7 decks
14%synergy
Thoughtseize
14%inclusion1 decks7 decks
14%synergy
Arterial Flow
14%inclusion1 decks7 decks
14%synergy
Not Forgotten
14%inclusion1 decks7 decks
14%synergy
Approach of the Second Sun
14%inclusion1 decks7 decks
13%synergy
Grim Tutor
14%inclusion1 decks7 decks
10%synergy
Chain of Smog
14%inclusion1 decks7 decks
14%synergy
Utility Artifacts
Sensei's Divining Top
43%inclusion3 decks7 decks
40%synergy
Wishclaw Talisman
43%inclusion3 decks7 decks
40%synergy
Aetherflux Reservoir
29%inclusion2 decks7 decks
21%synergy
Stone of Erech
29%inclusion2 decks7 decks
28%synergy
Sword of Light and Shadow
14%inclusion1 decks7 decks
14%synergy
Sword of Once and Future
14%inclusion1 decks7 decks
14%synergy
Sword of Fire and Ice
14%inclusion1 decks7 decks
13%synergy
Weathered Runestone
14%inclusion1 decks7 decks
14%synergy
Ashnod's Altar
14%inclusion1 decks7 decks
-4%synergy
Mishra's Bauble
14%inclusion1 decks7 decks
13%synergy
Skullclamp
14%inclusion1 decks7 decks
-12%synergy
Blasting Station
14%inclusion1 decks7 decks
13%synergy
Sword of Truth and Justice
14%inclusion1 decks7 decks
14%synergy
Spellbook
14%inclusion1 decks7 decks
14%synergy
Library of Leng
14%inclusion1 decks7 decks
14%synergy
Sword of Hearth and Home
14%inclusion1 decks7 decks
12%synergy
Sword of War and Peace
14%inclusion1 decks7 decks
14%synergy
Nihil Spellbomb
14%inclusion1 decks7 decks
13%synergy
Sword of Forge and Frontier
14%inclusion1 decks7 decks
14%synergy
Knowledge Pool
14%inclusion1 decks7 decks
14%synergy
Sword of Sinew and Steel
14%inclusion1 decks7 decks
14%synergy
Altar of Dementia
14%inclusion1 decks7 decks
10%synergy
Phyrexian Altar
14%inclusion1 decks7 decks
3%synergy
Well of Lost Dreams
14%inclusion1 decks7 decks
7%synergy
Altar of the Brood
14%inclusion1 decks7 decks
13%synergy
Sword of Feast and Famine
14%inclusion1 decks7 decks
13%synergy
Sword of Body and Mind
14%inclusion1 decks7 decks
14%synergy
Enchantments
Blind Obedience
29%inclusion2 decks7 decks
12%synergy
Exquisite Blood
29%inclusion2 decks7 decks
13%synergy
Necropotence
29%inclusion2 decks7 decks
23%synergy
Authority of the Consuls
29%inclusion2 decks7 decks
13%synergy
Animate Dead
29%inclusion2 decks7 decks
18%synergy
Ghostly Prison
29%inclusion2 decks7 decks
13%synergy
Dance of the Dead
14%inclusion1 decks7 decks
12%synergy
Black Market
14%inclusion1 decks7 decks
7%synergy
Smothering Tithe
14%inclusion1 decks7 decks
-7%synergy
Grave Pact
14%inclusion1 decks7 decks
6%synergy
Sanguine Bond
14%inclusion1 decks7 decks
-5%synergy
Koskun Falls
14%inclusion1 decks7 decks
14%synergy
Unholy Annex // Ritual Chamber
14%inclusion1 decks7 decks
13%synergy
Phyrexian Reclamation
14%inclusion1 decks7 decks
10%synergy
Oubliette
14%inclusion1 decks7 decks
13%synergy
Necromancy
14%inclusion1 decks7 decks
12%synergy
Aura of Silence
14%inclusion1 decks7 decks
12%synergy
Bitterblossom
14%inclusion1 decks7 decks
6%synergy
Land Tax
14%inclusion1 decks7 decks
2%synergy
Phyrexian Arena
14%inclusion1 decks7 decks
-14%synergy
Legion's Landing
14%inclusion1 decks7 decks
11%synergy
Planeswalkers
Kaya the Inexorable
14%inclusion1 decks7 decks
12%synergy
Elspeth Resplendent
14%inclusion1 decks7 decks
14%synergy
Sorin, Solemn Visitor
14%inclusion1 decks7 decks
13%synergy
Liliana Vess
14%inclusion1 decks7 decks
14%synergy
Utility Lands
Strip Mine
43%inclusion3 decks7 decks
41%synergy
Urza's Saga
29%inclusion2 decks7 decks
23%synergy
Urborg, Tomb of Yawgmoth
29%inclusion2 decks7 decks
8%synergy
Minas Tirith
29%inclusion2 decks7 decks
22%synergy
Abandoned Air Temple
17%inclusion1 decks6 decks
12%synergy
Shizo, Death's Storehouse
14%inclusion1 decks7 decks
10%synergy
Bojuka Bog
14%inclusion1 decks7 decks
-30%synergy
Westvale Abbey
14%inclusion1 decks7 decks
7%synergy
Wasteland
14%inclusion1 decks7 decks
13%synergy
Phyrexian Tower
14%inclusion1 decks7 decks
-2%synergy
Echoing Deeps
14%inclusion1 decks7 decks
14%synergy
Hall of the Bandit Lord
14%inclusion1 decks7 decks
14%synergy
Barren Moor
14%inclusion1 decks7 decks
11%synergy
Boseiju, Who Shelters All
14%inclusion1 decks7 decks
14%synergy
Tectonic Edge
14%inclusion1 decks7 decks
14%synergy
Hall of Heliod's Generosity
14%inclusion1 decks7 decks
6%synergy
Witch's Cottage
14%inclusion1 decks7 decks
11%synergy
Eiganjo, Seat of the Empire
14%inclusion1 decks7 decks
5%synergy
Blinkmoth Nexus
14%inclusion1 decks7 decks
14%synergy
Nykthos, Shrine to Nyx
14%inclusion1 decks7 decks
10%synergy
Barad-dûr
14%inclusion1 decks7 decks
12%synergy
Takenuma, Abandoned Mire
14%inclusion1 decks7 decks
3%synergy
Mistveil Plains
14%inclusion1 decks7 decks
13%synergy
Volrath's Stronghold
14%inclusion1 decks7 decks
13%synergy
Vault of the Archangel
14%inclusion1 decks7 decks
-18%synergy
Great Arashin City
14%inclusion1 decks7 decks
12%synergy
Secluded Steppe
14%inclusion1 decks7 decks
12%synergy
Lake of the Dead
14%inclusion1 decks7 decks
14%synergy
Reliquary Tower
14%inclusion1 decks7 decks
-9%synergy
Cascading Cataracts
14%inclusion1 decks7 decks
14%synergy
Mana Artifacts
Arcane Signet
86%inclusion6 decks7 decks
6%synergy
Sol Ring
86%inclusion6 decks7 decks
2%synergy
Lotus Petal
57%inclusion4 decks7 decks
54%synergy
Fellwar Stone
57%inclusion4 decks7 decks
35%synergy
Talisman of Hierarchy
57%inclusion4 decks7 decks
4%synergy
Mox Opal
43%inclusion3 decks7 decks
41%synergy
Orzhov Signet
29%inclusion2 decks7 decks
-25%synergy
Springleaf Drum
29%inclusion2 decks7 decks
27%synergy
Paradise Mantle
29%inclusion2 decks7 decks
28%synergy
Grim Monolith
14%inclusion1 decks7 decks
14%synergy
Chromatic Sphere
14%inclusion1 decks7 decks
14%synergy
Mox Amber
14%inclusion1 decks7 decks
11%synergy
Decanter of Endless Water
14%inclusion1 decks7 decks
12%synergy
Thought Vessel
14%inclusion1 decks7 decks
0%synergy
Mind Stone
14%inclusion1 decks7 decks
-8%synergy
Chromatic Star
14%inclusion1 decks7 decks
14%synergy
Thran Dynamo
14%inclusion1 decks7 decks
12%synergy
Jeweled Amulet
14%inclusion1 decks7 decks
14%synergy
Lands
Command Tower
100%inclusion7 decks7 decks
14%synergy
Godless Shrine
100%inclusion7 decks7 decks
49%synergy
Swamp
100%inclusion7 decks7 decks
2%synergy
Plains
100%inclusion7 decks7 decks
2%synergy
Caves of Koilos
86%inclusion6 decks7 decks
28%synergy
Fetid Heath
71%inclusion5 decks7 decks
29%synergy
Vault of Champions
71%inclusion5 decks7 decks
32%synergy
Isolated Chapel
71%inclusion5 decks7 decks
4%synergy
Marsh Flats
71%inclusion5 decks7 decks
42%synergy
Exotic Orchard
43%inclusion3 decks7 decks
17%synergy
Concealed Courtyard
43%inclusion3 decks7 decks
22%synergy
Tainted Field
43%inclusion3 decks7 decks
-7%synergy
Gemstone Caverns
43%inclusion3 decks7 decks
41%synergy
Verdant Catacombs
43%inclusion3 decks7 decks
37%synergy
Scrubland
43%inclusion3 decks7 decks
31%synergy
Mana Confluence
43%inclusion3 decks7 decks
40%synergy
City of Brass
43%inclusion3 decks7 decks
39%synergy
Polluted Delta
43%inclusion3 decks7 decks
37%synergy
Flooded Strand
43%inclusion3 decks7 decks
37%synergy
Prismatic Vista
29%inclusion2 decks7 decks
23%synergy
Brightclimb Pathway
29%inclusion2 decks7 decks
2%synergy
Shadowy Backstreet
29%inclusion2 decks7 decks
6%synergy
Windswept Heath
29%inclusion2 decks7 decks
23%synergy
Bleachbone Verge
29%inclusion2 decks7 decks
5%synergy
Orzhov Basilica
29%inclusion2 decks7 decks
-10%synergy
Arid Mesa
29%inclusion2 decks7 decks
23%synergy
Bloodstained Mire
29%inclusion2 decks7 decks
22%synergy
Temple of Silence
29%inclusion2 decks7 decks
-10%synergy
Misty Palms Oasis
17%inclusion1 decks6 decks
15%synergy
Gemstone Mine
14%inclusion1 decks7 decks
14%synergy
Fabled Passage
14%inclusion1 decks7 decks
2%synergy
Silverquill Campus
14%inclusion1 decks7 decks
9%synergy
Sunken Citadel
14%inclusion1 decks7 decks
14%synergy
Orzhov Guildgate
14%inclusion1 decks7 decks
6%synergy
Ash Barrens
14%inclusion1 decks7 decks
11%synergy
Snowfield Sinkhole
14%inclusion1 decks7 decks
8%synergy
Forsaken Sanctuary
14%inclusion1 decks7 decks
11%synergy
Snow-Covered Plains
14%inclusion1 decks7 decks
11%synergy
Shattered Sanctum
14%inclusion1 decks7 decks
-24%synergy
Reflecting Pool
14%inclusion1 decks7 decks
11%synergy
Neglected Manor
14%inclusion1 decks7 decks
12%synergy
Goldmire Bridge
14%inclusion1 decks7 decks
10%synergy
Shineshadow Snarl
14%inclusion1 decks7 decks
-28%synergy
Scoured Barrens
14%inclusion1 decks7 decks
-8%synergy
Snow-Covered Swamp
14%inclusion1 decks7 decks
11%synergy
Rainbow Vale
14%inclusion1 decks7 decks
14%synergy
Salt Flats
14%inclusion1 decks7 decks
14%synergy
Forlorn Flats
14%inclusion1 decks7 decks
9%synergy
Flagstones of Trokair
14%inclusion1 decks7 decks
14%synergy
Silent Clearing
14%inclusion1 decks7 decks
-1%synergy
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