Umori, the Collector (Commander) - Slime Against Humanity

Umori, the Collector
Rank #1,363
35decks
As CommanderAs CompanionAs CardAverage DeckDecks
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1
23
4
5
Budget
Any$$$$
Cooper Gottfried
Apr 27, 2026
Cooper Gottfried
Creatures, Lands, and Nothing Else, With Arnyn, Deathbloom Botanist
Can we pull off a mono-black life drain Commander deck with only creatures and lands? With Arnyn, Deathbloom Botanist, it seems highly likely.
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Slime Against Humanity
97%inclusion34 decks35 decks
97%synergy
Emerald Medallion
69%inclusion24 decks35 decks
65%synergy
Inspiring Call
69%inclusion24 decks35 decks
63%synergy
Biogenic Ooze
63%inclusion22 decks35 decks
63%synergy
Thrumming Stone
63%inclusion22 decks35 decks
62%synergy
Spellweaver Helix
60%inclusion21 decks35 decks
60%synergy
Biowaste Blob
60%inclusion21 decks35 decks
60%synergy
Aeve, Progenitor Ooze
57%inclusion20 decks35 decks
57%synergy
CLOUD KEY
57%inclusion20 decks35 decks
56%synergy
Oran-Rief Ooze
54%inclusion19 decks35 decks
54%synergy
Top Cards
Cultivate
74%inclusion26 decks35 decks
35%synergy
Rampant Growth
63%inclusion22 decks35 decks
31%synergy
Kodama's Reach
54%inclusion19 decks35 decks
33%synergy
Doubling Season
51%inclusion18 decks35 decks
34%synergy
Acidic Slime
51%inclusion18 decks35 decks
49%synergy
Locket of Yesterdays
51%inclusion18 decks35 decks
51%synergy
Branching Evolution
49%inclusion17 decks35 decks
43%synergy
Predator Ooze
49%inclusion17 decks35 decks
48%synergy
Green Slime
49%inclusion17 decks35 decks
48%synergy
Rishkar's Expertise
46%inclusion16 decks35 decks
39%synergy
Game Changers
Demonic Tutor
8.6%inclusion3 decks35 decks
-7%synergy
Vampiric Tutor
8.6%inclusion3 decks35 decks
-2%synergy
Bolas's Citadel
5.7%inclusion2 decks35 decks
0%synergy
Worldly Tutor
5.7%inclusion2 decks35 decks
-4%synergy
Creatures
Slurrk, All-Ingesting
46%inclusion16 decks35 decks
45%synergy
Uchuulon
40%inclusion14 decks35 decks
40%synergy
Scavenging Ooze
40%inclusion14 decks35 decks
37%synergy
Ochre Jelly
40%inclusion14 decks35 decks
40%synergy
Experiment One
40%inclusion14 decks35 decks
40%synergy
Gelatinous Cube
37%inclusion13 decks35 decks
37%synergy
Ravenous Slime
34%inclusion12 decks35 decks
34%synergy
Mitotic Slime
26%inclusion9 decks35 decks
25%synergy
Necrotic Ooze
26%inclusion9 decks35 decks
25%synergy
Expanding Ooze
23%inclusion8 decks35 decks
23%synergy
Consuming Blob
23%inclusion8 decks35 decks
23%synergy
Inexorable Blob
20%inclusion7 decks35 decks
20%synergy
Splitting Slime
20%inclusion7 decks35 decks
20%synergy
Corrosive Ooze
14%inclusion5 decks35 decks
14%synergy
Manaplasm
14%inclusion5 decks35 decks
14%synergy
Corpsejack Menace
14%inclusion5 decks35 decks
7%synergy
BIRDS OF PARADISE
14%inclusion5 decks35 decks
-7%synergy
Metallic Mimic
11%inclusion4 decks35 decks
10%synergy
Kodama of the West Tree
11%inclusion4 decks35 decks
9%synergy
Temperamental Oozewagg
8.6%inclusion3 decks35 decks
8%synergy
Selvala, Heart of the Wilds
8.6%inclusion3 decks35 decks
5%synergy
Crashing Drawbridge
8.6%inclusion3 decks35 decks
8%synergy
Consumptive Goo
8.6%inclusion3 decks35 decks
9%synergy
Gluttonous Slime
8.6%inclusion3 decks35 decks
9%synergy
LLANOWAR ELVES
8.6%inclusion3 decks35 decks
-27%synergy
Gobbling Ooze
8.6%inclusion3 decks35 decks
9%synergy
Necroplasm
8.6%inclusion3 decks35 decks
8%synergy
Quina, Qu Gourmet
7.1%inclusion2 decks28 decks
6%synergy
Ancient Ooze
5.7%inclusion2 decks35 decks
6%synergy
Mephitic Ooze
5.7%inclusion2 decks35 decks
6%synergy
Disciple of Freyalise
5.7%inclusion2 decks35 decks
-3%synergy
Printlifter Ooze
5.7%inclusion2 decks35 decks
6%synergy
Saryth, the Viper's Fang
5.7%inclusion2 decks35 decks
3%synergy
Adaptive Automaton
5.7%inclusion2 decks35 decks
4%synergy
Vigor
5.7%inclusion2 decks35 decks
4%synergy
Rishkar, Peema Renegade
5.7%inclusion2 decks35 decks
3%synergy
Craterhoof Behemoth
5.7%inclusion2 decks35 decks
-7%synergy
Runadi, Behemoth Caller
5.7%inclusion2 decks35 decks
6%synergy
Toski, Bearer of Secrets
5.7%inclusion2 decks35 decks
-7%synergy
Realmwalker
5.7%inclusion2 decks35 decks
-2%synergy
Ohran Frostfang
5.7%inclusion2 decks35 decks
-5%synergy
Fyndhorn Elves
5.7%inclusion2 decks35 decks
-12%synergy
Chatterfang, Squirrel General
5.7%inclusion2 decks35 decks
-8%synergy
Bioplasm
5.7%inclusion2 decks35 decks
6%synergy
Studious First-Year
5.0%inclusion1 decks20 decks
-1%synergy
Witherbloom, the Balancer
5.0%inclusion1 decks20 decks
3%synergy
Kinetic Ooze
5.0%inclusion1 decks20 decks
5%synergy
Instants
Heroic Intervention
31%inclusion11 decks35 decks
-0%synergy
Return of the Wildspeaker
31%inclusion11 decks35 decks
20%synergy
Surgical Extraction
31%inclusion11 decks35 decks
31%synergy
Assassin's Trophy
29%inclusion10 decks35 decks
-19%synergy
Beast Within
20%inclusion7 decks35 decks
-14%synergy
Putrefy
20%inclusion7 decks35 decks
-12%synergy
Tear Asunder
14%inclusion5 decks35 decks
-1%synergy
Golgari Charm
11%inclusion4 decks35 decks
-4%synergy
Krosan Grip
8.6%inclusion3 decks35 decks
4%synergy
Broken Wings
8.6%inclusion3 decks35 decks
8%synergy
Second Harvest
8.6%inclusion3 decks35 decks
-5%synergy
Midnight Tilling
7.7%inclusion2 decks26 decks
6%synergy
Rapid Rescue
7.7%inclusion1 decks13 decks
7%synergy
Deadly Rollick
5.7%inclusion2 decks35 decks
-6%synergy
Fell the Profane
5.7%inclusion2 decks35 decks
-4%synergy
Abrupt Decay
5.7%inclusion2 decks35 decks
-10%synergy
Atomize
5.7%inclusion2 decks35 decks
1%synergy
Harrow
5.7%inclusion2 decks35 decks
-3%synergy
Entish Restoration
5.7%inclusion2 decks35 decks
1%synergy
Revitalizing Repast
5.7%inclusion2 decks35 decks
-14%synergy
Inscription of Abundance
5.7%inclusion2 decks35 decks
4%synergy
Grisly Salvage
5.7%inclusion2 decks35 decks
-4%synergy
Extirpate
5.7%inclusion2 decks35 decks
6%synergy
Sorceries
Farseek
37%inclusion13 decks35 decks
19%synergy
Harmonize
37%inclusion13 decks35 decks
30%synergy
Nature's Lore
34%inclusion12 decks35 decks
9%synergy
Three Visits
26%inclusion9 decks35 decks
8%synergy
Convert to Slime
26%inclusion9 decks35 decks
24%synergy
Explore
26%inclusion9 decks35 decks
22%synergy
Shamanic Revelation
23%inclusion8 decks35 decks
10%synergy
Miming Slime
20%inclusion7 decks35 decks
20%synergy
Night's Whisper
20%inclusion7 decks35 decks
10%synergy
Bala Ged Recovery
20%inclusion7 decks35 decks
9%synergy
Secret Salvage
20%inclusion7 decks35 decks
20%synergy
Gelatinous Genesis
17%inclusion6 decks35 decks
16%synergy
Kindred Dominance
17%inclusion6 decks35 decks
11%synergy
Toxic Deluge
14%inclusion5 decks35 decks
-8%synergy
Skyshroud Claim
11%inclusion4 decks35 decks
7%synergy
Maelstrom Pulse
11%inclusion4 decks35 decks
6%synergy
Bridgeworks Battle
11%inclusion4 decks35 decks
7%synergy
In Garruk's Wake
11%inclusion4 decks35 decks
6%synergy
Sign in Blood
11%inclusion4 decks35 decks
5%synergy
Slime Molding
11%inclusion4 decks35 decks
11%synergy
Overwhelming Stampede
11%inclusion4 decks35 decks
6%synergy
Regrowth
11%inclusion4 decks35 decks
8%synergy
Nissa's Pilgrimage
11%inclusion4 decks35 decks
11%synergy
Culling Ritual
8.6%inclusion3 decks35 decks
-13%synergy
Pest Infestation
8.6%inclusion3 decks35 decks
-6%synergy
Casualties of War
8.6%inclusion3 decks35 decks
-2%synergy
Pick Your Poison
8.6%inclusion3 decks35 decks
6%synergy
Life's Legacy
8.6%inclusion3 decks35 decks
6%synergy
Shared Roots
7.7%inclusion2 decks26 decks
4%synergy
Expand the Sphere
5.7%inclusion2 decks35 decks
5%synergy
Far Wanderings
5.7%inclusion2 decks35 decks
5%synergy
Yawgmoth's Will
5.7%inclusion2 decks35 decks
5%synergy
Triumph of the Hordes
5.7%inclusion2 decks35 decks
0%synergy
Season of Gathering
5.7%inclusion2 decks35 decks
2%synergy
Lost Legacy
5.7%inclusion2 decks35 decks
6%synergy
Feed the Swarm
5.7%inclusion2 decks35 decks
-2%synergy
Read the Bones
5.7%inclusion2 decks35 decks
1%synergy
Tendrils of Agony
5.7%inclusion2 decks35 decks
5%synergy
Fangs of Kalonia
5.7%inclusion2 decks35 decks
4%synergy
Diresight
5.7%inclusion2 decks35 decks
4%synergy
Syphon Mind
5.7%inclusion2 decks35 decks
4%synergy
Smell Fear
5.7%inclusion2 decks35 decks
4%synergy
Ezuri's Predation
5.7%inclusion2 decks35 decks
1%synergy
Malevolent Rumble
5.7%inclusion2 decks35 decks
3%synergy
Migration Path
5.7%inclusion2 decks35 decks
4%synergy
For the Common Good
5.7%inclusion2 decks35 decks
0%synergy
Drown in Ichor
5.7%inclusion2 decks35 decks
3%synergy
Crippling Fear
5.7%inclusion2 decks35 decks
3%synergy
Utility Artifacts
The Earth Crystal
36%inclusion10 decks28 decks
31%synergy
The Ozolith
31%inclusion11 decks35 decks
27%synergy
Semblance Anvil
29%inclusion10 decks35 decks
28%synergy
Ozolith, the Shattered Spire
20%inclusion7 decks35 decks
16%synergy
Primal Amulet
20%inclusion7 decks35 decks
20%synergy
Bow of Nylea
14%inclusion5 decks35 decks
11%synergy
Idol of Oblivion
11%inclusion4 decks35 decks
4%synergy
Elixir of Immortality
8.6%inclusion3 decks35 decks
7%synergy
N'Yami-Class Mother Ship
8.3%inclusion1 decks12 decks
8%synergy
Vedalken Orrery
5.7%inclusion2 decks35 decks
5%synergy
River Song's Diary
5.7%inclusion2 decks35 decks
6%synergy
Banner of Kinship
5.7%inclusion2 decks35 decks
1%synergy
Vanquisher's Banner
5.7%inclusion2 decks35 decks
2%synergy
Cloak of the Bat
5.7%inclusion2 decks35 decks
5%synergy
Enchantments
Garruk's Uprising
37%inclusion13 decks35 decks
30%synergy
Terrasymbiosis
36%inclusion10 decks28 decks
31%synergy
Tribute to the World Tree
34%inclusion12 decks35 decks
31%synergy
March of the World Ooze
33%inclusion11 decks33 decks
32%synergy
Parallel Lives
31%inclusion11 decks35 decks
19%synergy
Hardened Scales
26%inclusion9 decks35 decks
16%synergy
Phyrexian Arena
23%inclusion8 decks35 decks
10%synergy
Sylvan Library
20%inclusion7 decks35 decks
11%synergy
Colossal Majesty
20%inclusion7 decks35 decks
19%synergy
Gutter Grime
17%inclusion6 decks35 decks
17%synergy
Primal Vigor
17%inclusion6 decks35 decks
12%synergy
Concordant Crossroads
17%inclusion6 decks35 decks
15%synergy
Ooze Flux
14%inclusion5 decks35 decks
14%synergy
Innkeeper's Talent
14%inclusion5 decks35 decks
10%synergy
Greater Good
14%inclusion5 decks35 decks
9%synergy
Loading Zone
11%inclusion3 decks28 decks
9%synergy
Hollowmurk Siege
10%inclusion3 decks30 decks
5%synergy
Stocking the Pantry
8.6%inclusion3 decks35 decks
7%synergy
Court of Garenbrig
8.6%inclusion3 decks35 decks
7%synergy
Wild Growth
8.6%inclusion3 decks35 decks
0%synergy
Unnatural Growth
8.6%inclusion3 decks35 decks
5%synergy
Black Market Connections
8.6%inclusion3 decks35 decks
-0%synergy
Nantuko Shrine
8.6%inclusion3 decks35 decks
8%synergy
Sphere Grid
7.1%inclusion2 decks28 decks
4%synergy
Binding the Old Gods
5.7%inclusion2 decks35 decks
-2%synergy
Moldervine Reclamation
5.7%inclusion2 decks35 decks
-18%synergy
Snake Umbra
5.7%inclusion2 decks35 decks
4%synergy
Asceticism
5.7%inclusion2 decks35 decks
4%synergy
Crawling Infestation
5.7%inclusion2 decks35 decks
1%synergy
Death's Presence
5.7%inclusion2 decks35 decks
4%synergy
Abundance
5.7%inclusion2 decks35 decks
5%synergy
Battles
Invasion of Muraganda
5.7%inclusion2 decks35 decks
6%synergy
Planeswalkers
Nissa, Who Shakes the World
5.7%inclusion2 decks35 decks
4%synergy
Professor Onyx
5.7%inclusion2 decks35 decks
3%synergy
Utility Lands
Yavimaya, Cradle of Growth
29%inclusion10 decks35 decks
2%synergy
RELIQUARY TOWER
26%inclusion9 decks35 decks
3%synergy
Oran-Rief, the Vastwood
26%inclusion9 decks35 decks
16%synergy
Bojuka Bog
20%inclusion7 decks35 decks
-22%synergy
Karn's Bastion
17%inclusion6 decks35 decks
11%synergy
Urborg, Tomb of Yawgmoth
17%inclusion6 decks35 decks
-5%synergy
Three Tree City
14%inclusion5 decks35 decks
3%synergy
Mosswort Bridge
11%inclusion4 decks35 decks
6%synergy
Rogue's Passage
11%inclusion4 decks35 decks
-11%synergy
Boseiju, Who Endures
8.6%inclusion3 decks35 decks
-10%synergy
Susur Secundi, Void Altar
7.1%inclusion2 decks28 decks
3%synergy
Nykthos, Shrine to Nyx
5.7%inclusion2 decks35 decks
3%synergy
Temple of the False God
5.7%inclusion2 decks35 decks
-1%synergy
Bonders' Enclave
5.7%inclusion2 decks35 decks
5%synergy
Mana Artifacts
Sol Ring
71%inclusion25 decks35 decks
-8%synergy
Arcane Signet
49%inclusion17 decks35 decks
-13%synergy
Talisman of Resilience
17%inclusion6 decks35 decks
-7%synergy
Golgari Signet
14%inclusion5 decks35 decks
-10%synergy
Commander's Sphere
8.6%inclusion3 decks35 decks
2%synergy
Patchwork Banner
8.6%inclusion3 decks35 decks
2%synergy
Thought Vessel
8.6%inclusion3 decks35 decks
3%synergy
Mind Stone
8.6%inclusion3 decks35 decks
4%synergy
Lands
Forest
100%inclusion35 decks35 decks
2%synergy
Swamp
83%inclusion29 decks35 decks
-15%synergy
Command Tower
63%inclusion22 decks35 decks
-23%synergy
Overgrown Tomb
49%inclusion17 decks35 decks
0%synergy
Woodland Cemetery
43%inclusion15 decks35 decks
-22%synergy
Undergrowth Stadium
34%inclusion12 decks35 decks
-5%synergy
Necroblossom Snarl
29%inclusion10 decks35 decks
-9%synergy
Path of Ancestry
29%inclusion10 decks35 decks
4%synergy
Vernal Fen
29%inclusion8 decks28 decks
4%synergy
Golgari Rot Farm
23%inclusion8 decks35 decks
-15%synergy
Verdant Catacombs
23%inclusion8 decks35 decks
-6%synergy
Tainted Wood
23%inclusion8 decks35 decks
-21%synergy
Myriad Landscape
20%inclusion7 decks35 decks
7%synergy
Llanowar Wastes
20%inclusion7 decks35 decks
-34%synergy
Bala Ged Recovery
20%inclusion7 decks35 decks
9%synergy
Twilight Mire
20%inclusion7 decks35 decks
-21%synergy
Deathcap Glade
20%inclusion7 decks35 decks
-14%synergy
Temple of Malady
17%inclusion6 decks35 decks
-16%synergy
Terramorphic Expanse
14%inclusion5 decks35 decks
-6%synergy
Haunted Mire
14%inclusion5 decks35 decks
-1%synergy
Wastewood Verge
12%inclusion4 decks33 decks
-8%synergy
Underground Mortuary
11%inclusion4 decks35 decks
-9%synergy
Bridgeworks Battle
11%inclusion4 decks35 decks
7%synergy
Evolving Wilds
11%inclusion4 decks35 decks
-14%synergy
Turbulent Fen
10%inclusion2 decks20 decks
-7%synergy
Blighted Woodland
8.6%inclusion3 decks35 decks
5%synergy
Exotic Orchard
8.6%inclusion3 decks35 decks
-20%synergy
Viridescent Bog
8.6%inclusion3 decks35 decks
-15%synergy
Jungle Hollow
8.6%inclusion3 decks35 decks
-15%synergy
Fell the Profane
5.7%inclusion2 decks35 decks
-4%synergy
Disciple of Freyalise
5.7%inclusion2 decks35 decks
-3%synergy
Windswept Heath
5.7%inclusion2 decks35 decks
-2%synergy
Strangled Cemetery
5.7%inclusion2 decks35 decks
4%synergy
Wooded Foothills
5.7%inclusion2 decks35 decks
-1%synergy
Blooming Marsh
5.7%inclusion2 decks35 decks
-8%synergy
Reflecting Pool
5.7%inclusion2 decks35 decks
3%synergy
Revitalizing Repast
5.7%inclusion2 decks35 decks
-14%synergy
Bayou
5.7%inclusion2 decks35 decks
-6%synergy
Woodland Chasm
5.7%inclusion2 decks35 decks
0%synergy
Golgari Guildgate
5.7%inclusion2 decks35 decks
-2%synergy
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