Umori, the Collector (Commander) - Core Slime Against Humanity

Umori, the Collector
Rank #1,364
7decks
As CommanderAs CompanionAs CardAverage DeckDecks
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23
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5
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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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Utility Lands
Mana Artifacts
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Slime Against Humanity
100%inclusion7 decks7 decks
99%synergy
Cloud Key
86%inclusion6 decks7 decks
85%synergy
Emerald Medallion
71%inclusion5 decks7 decks
67%synergy
Inspiring Call
71%inclusion5 decks7 decks
66%synergy
Spellweaver Helix
57%inclusion4 decks7 decks
57%synergy
Acidic Slime
57%inclusion4 decks7 decks
55%synergy
Rampant Growth
86%inclusion6 decks7 decks
54%synergy
Scavenging Ooze
57%inclusion4 decks7 decks
54%synergy
Tribute to the World Tree
57%inclusion4 decks7 decks
54%synergy
Farseek
71%inclusion5 decks7 decks
53%synergy
Top Cards
Cultivate
86%inclusion6 decks7 decks
47%synergy
Kodama's Reach
57%inclusion4 decks7 decks
36%synergy
Nature's Lore
57%inclusion4 decks7 decks
32%synergy
Rishkar's Expertise
57%inclusion4 decks7 decks
50%synergy
Creatures
Aeve, Progenitor Ooze
43%inclusion3 decks7 decks
43%synergy
Experiment One
43%inclusion3 decks7 decks
43%synergy
Oran-Rief Ooze
43%inclusion3 decks7 decks
42%synergy
Slurrk, All-Ingesting
43%inclusion3 decks7 decks
43%synergy
Predator Ooze
43%inclusion3 decks7 decks
42%synergy
Biogenic Ooze
43%inclusion3 decks7 decks
43%synergy
Necrotic Ooze
29%inclusion2 decks7 decks
28%synergy
Gelatinous Cube
29%inclusion2 decks7 decks
28%synergy
LLANOWAR ELVES
29%inclusion2 decks7 decks
-7%synergy
Biowaste Blob
29%inclusion2 decks7 decks
28%synergy
Surrak, Elusive Hunter
17%inclusion1 decks6 decks
16%synergy
Selfless Safewright
17%inclusion1 decks6 decks
10%synergy
Studious First-Year
17%inclusion1 decks6 decks
11%synergy
Witherbloom, the Balancer
17%inclusion1 decks6 decks
14%synergy
Green Slime
14%inclusion1 decks7 decks
14%synergy
Mitotic Slime
14%inclusion1 decks7 decks
14%synergy
Garruk's Packleader
14%inclusion1 decks7 decks
14%synergy
Uchuulon
14%inclusion1 decks7 decks
14%synergy
Metallic Mimic
14%inclusion1 decks7 decks
12%synergy
Elves of Deep Shadow
14%inclusion1 decks7 decks
-4%synergy
Ochre Jelly
14%inclusion1 decks7 decks
14%synergy
Rampaging Baloths
14%inclusion1 decks7 decks
10%synergy
Eternal Witness
14%inclusion1 decks7 decks
-7%synergy
Crashing Drawbridge
14%inclusion1 decks7 decks
14%synergy
Outcaster Trailblazer
14%inclusion1 decks7 decks
14%synergy
Elvish Mystic
14%inclusion1 decks7 decks
-15%synergy
Corrosive Ooze
14%inclusion1 decks7 decks
14%synergy
Expanding Ooze
14%inclusion1 decks7 decks
14%synergy
Stitcher's Supplier
14%inclusion1 decks7 decks
7%synergy
Springheart Nantuko
14%inclusion1 decks7 decks
7%synergy
Walking Bulwark
14%inclusion1 decks7 decks
14%synergy
Lotus Cobra
14%inclusion1 decks7 decks
10%synergy
Scute Swarm
14%inclusion1 decks7 decks
0%synergy
Tireless Provisioner
14%inclusion1 decks7 decks
-3%synergy
Evolution Sage
14%inclusion1 decks7 decks
7%synergy
Realmwalker
14%inclusion1 decks7 decks
7%synergy
Inexorable Blob
14%inclusion1 decks7 decks
14%synergy
Keeper of Fables
14%inclusion1 decks7 decks
14%synergy
Kodama of the East Tree
14%inclusion1 decks7 decks
13%synergy
BIRDS OF PARADISE
14%inclusion1 decks7 decks
-7%synergy
Kodama of the West Tree
14%inclusion1 decks7 decks
12%synergy
Fyndhorn Elves
14%inclusion1 decks7 decks
-3%synergy
Instants
Return of the Wildspeaker
43%inclusion3 decks7 decks
31%synergy
Tear Asunder
29%inclusion2 decks7 decks
14%synergy
Assassin's Trophy
29%inclusion2 decks7 decks
-19%synergy
Midnight Tilling
17%inclusion1 decks6 decks
15%synergy
Deadly Rollick
14%inclusion1 decks7 decks
3%synergy
Fell the Profane
14%inclusion1 decks7 decks
5%synergy
Heroic Intervention
14%inclusion1 decks7 decks
-18%synergy
Surgical Extraction
14%inclusion1 decks7 decks
14%synergy
Atomize
14%inclusion1 decks7 decks
10%synergy
Dark Ritual
14%inclusion1 decks7 decks
-4%synergy
Skeletal Scrying
14%inclusion1 decks7 decks
14%synergy
Broken Wings
14%inclusion1 decks7 decks
13%synergy
Second Harvest
14%inclusion1 decks7 decks
0%synergy
Harrow
14%inclusion1 decks7 decks
6%synergy
Entish Restoration
14%inclusion1 decks7 decks
10%synergy
Beast Within
14%inclusion1 decks7 decks
-19%synergy
Peerless Recycling
14%inclusion1 decks7 decks
13%synergy
Infernal Grasp
14%inclusion1 decks7 decks
6%synergy
Putrefy
14%inclusion1 decks7 decks
-18%synergy
Break Down the Door
14%inclusion1 decks7 decks
14%synergy
Inscription of Abundance
14%inclusion1 decks7 decks
13%synergy
Grisly Salvage
14%inclusion1 decks7 decks
5%synergy
Naturalize
14%inclusion1 decks7 decks
12%synergy
Sudden Reclamation
14%inclusion1 decks7 decks
14%synergy
Hostile Negotiations
14%inclusion1 decks7 decks
14%synergy
Sorceries
Casualties of War
43%inclusion3 decks7 decks
33%synergy
Harmonize
43%inclusion3 decks7 decks
35%synergy
Kindred Dominance
43%inclusion3 decks7 decks
37%synergy
Shamanic Revelation
43%inclusion3 decks7 decks
30%synergy
Shared Roots
33%inclusion2 decks6 decks
29%synergy
Three Visits
29%inclusion2 decks7 decks
10%synergy
Skyshroud Claim
29%inclusion2 decks7 decks
24%synergy
Night's Whisper
29%inclusion2 decks7 decks
19%synergy
Bridgeworks Battle
29%inclusion2 decks7 decks
24%synergy
Toxic Deluge
29%inclusion2 decks7 decks
7%synergy
Convert to Slime
29%inclusion2 decks7 decks
27%synergy
Explore
29%inclusion2 decks7 decks
24%synergy
Bala Ged Recovery
29%inclusion2 decks7 decks
18%synergy
Migration Path
29%inclusion2 decks7 decks
27%synergy
Nissa's Pilgrimage
29%inclusion2 decks7 decks
28%synergy
Secret Salvage
29%inclusion2 decks7 decks
28%synergy
Resentful Revelation
17%inclusion1 decks6 decks
16%synergy
Expand the Sphere
14%inclusion1 decks7 decks
14%synergy
Culling Ritual
14%inclusion1 decks7 decks
-7%synergy
Pest Infestation
14%inclusion1 decks7 decks
0%synergy
Far Wanderings
14%inclusion1 decks7 decks
13%synergy
Torment of Hailfire
14%inclusion1 decks7 decks
8%synergy
Feed the Infection
14%inclusion1 decks7 decks
14%synergy
Say Its Name
14%inclusion1 decks7 decks
14%synergy
Miming Slime
14%inclusion1 decks7 decks
14%synergy
Soul's Majesty
14%inclusion1 decks7 decks
13%synergy
Feed the Swarm
14%inclusion1 decks7 decks
7%synergy
Read the Bones
14%inclusion1 decks7 decks
10%synergy
Growth Spasm
14%inclusion1 decks7 decks
14%synergy
Rabid Bite
14%inclusion1 decks7 decks
14%synergy
Animist's Awakening
14%inclusion1 decks7 decks
12%synergy
Skull Storm
14%inclusion1 decks7 decks
14%synergy
Overwhelming Encounter
14%inclusion1 decks7 decks
14%synergy
Funeral Rites
14%inclusion1 decks7 decks
14%synergy
Ancient Craving
14%inclusion1 decks7 decks
13%synergy
Ambition's Cost
14%inclusion1 decks7 decks
13%synergy
Pillage the Bog
14%inclusion1 decks7 decks
13%synergy
Maelstrom Pulse
14%inclusion1 decks7 decks
9%synergy
Search for Tomorrow
14%inclusion1 decks7 decks
13%synergy
Atrocious Experiment
14%inclusion1 decks7 decks
14%synergy
In Garruk's Wake
14%inclusion1 decks7 decks
9%synergy
Diresight
14%inclusion1 decks7 decks
13%synergy
Syphon Mind
14%inclusion1 decks7 decks
13%synergy
Prey Upon
14%inclusion1 decks7 decks
14%synergy
Sign in Blood
14%inclusion1 decks7 decks
8%synergy
Smell Fear
14%inclusion1 decks7 decks
13%synergy
Life's Legacy
14%inclusion1 decks7 decks
12%synergy
Ezuri's Predation
14%inclusion1 decks7 decks
10%synergy
Malevolent Rumble
14%inclusion1 decks7 decks
12%synergy
Tapping at the Window
14%inclusion1 decks7 decks
14%synergy
Utility Artifacts
The Earth Crystal
50%inclusion3 decks6 decks
45%synergy
The Ozolith
43%inclusion3 decks7 decks
38%synergy
Locket of Yesterdays
43%inclusion3 decks7 decks
43%synergy
Elixir of Immortality
29%inclusion2 decks7 decks
27%synergy
Primal Amulet
29%inclusion2 decks7 decks
28%synergy
Thrumming Stone
29%inclusion2 decks7 decks
28%synergy
Semblance Anvil
29%inclusion2 decks7 decks
28%synergy
The Ooze
17%inclusion1 decks6 decks
16%synergy
Symmetry Matrix
14%inclusion1 decks7 decks
14%synergy
Bow of Nylea
14%inclusion1 decks7 decks
11%synergy
Ozolith, the Shattered Spire
14%inclusion1 decks7 decks
10%synergy
Sentinel Tower
14%inclusion1 decks7 decks
14%synergy
Vedalken Orrery
14%inclusion1 decks7 decks
14%synergy
River Song's Diary
14%inclusion1 decks7 decks
14%synergy
Skullclamp
14%inclusion1 decks7 decks
-17%synergy
Idol of Oblivion
14%inclusion1 decks7 decks
7%synergy
Altar of Dementia
14%inclusion1 decks7 decks
8%synergy
Cloak of the Bat
14%inclusion1 decks7 decks
14%synergy
Enchantments
Terrasymbiosis
50%inclusion3 decks6 decks
45%synergy
Doubling Season
43%inclusion3 decks7 decks
26%synergy
Branching Evolution
43%inclusion3 decks7 decks
37%synergy
Garruk's Uprising
43%inclusion3 decks7 decks
36%synergy
Parallel Lives
43%inclusion3 decks7 decks
30%synergy
Sylvan Library
29%inclusion2 decks7 decks
20%synergy
March of the World Ooze
29%inclusion2 decks7 decks
27%synergy
Hardened Scales
29%inclusion2 decks7 decks
19%synergy
Primal Vigor
29%inclusion2 decks7 decks
23%synergy
Hollowmurk Siege
17%inclusion1 decks6 decks
12%synergy
Sphere Grid
17%inclusion1 decks6 decks
13%synergy
Loading Zone
17%inclusion1 decks6 decks
15%synergy
Prismatic Undercurrents
17%inclusion1 decks6 decks
16%synergy
High Score
17%inclusion1 decks6 decks
15%synergy
Stocking the Pantry
14%inclusion1 decks7 decks
13%synergy
Exploration
14%inclusion1 decks7 decks
10%synergy
Case of the Locked Hothouse
14%inclusion1 decks7 decks
14%synergy
Sylvan Anthem
14%inclusion1 decks7 decks
12%synergy
Moldervine Reclamation
14%inclusion1 decks7 decks
-10%synergy
Innkeeper's Talent
14%inclusion1 decks7 decks
10%synergy
Crawling Infestation
14%inclusion1 decks7 decks
10%synergy
Zendikar's Roil
14%inclusion1 decks7 decks
13%synergy
Hunter's Talent
14%inclusion1 decks7 decks
13%synergy
Deathreap Ritual
14%inclusion1 decks7 decks
4%synergy
Black Market Connections
14%inclusion1 decks7 decks
5%synergy
Perilous Forays
14%inclusion1 decks7 decks
14%synergy
Abundance
14%inclusion1 decks7 decks
13%synergy
Phyrexian Arena
14%inclusion1 decks7 decks
1%synergy
Nantuko Shrine
14%inclusion1 decks7 decks
14%synergy
Utility Lands
Yavimaya, Cradle of Growth
43%inclusion3 decks7 decks
16%synergy
Urborg, Tomb of Yawgmoth
43%inclusion3 decks7 decks
21%synergy
Karn's Bastion
29%inclusion2 decks7 decks
22%synergy
Oran-Rief, the Vastwood
29%inclusion2 decks7 decks
19%synergy
Susur Secundi, Void Altar
17%inclusion1 decks6 decks
13%synergy
Bojuka Bog
14%inclusion1 decks7 decks
-28%synergy
Arid Archway
14%inclusion1 decks7 decks
14%synergy
War Room
14%inclusion1 decks7 decks
13%synergy
Cabal Coffers
14%inclusion1 decks7 decks
6%synergy
Nykthos, Shrine to Nyx
14%inclusion1 decks7 decks
12%synergy
Blasted Landscape
14%inclusion1 decks7 decks
14%synergy
Terrain Generator
14%inclusion1 decks7 decks
14%synergy
Boseiju, Who Endures
14%inclusion1 decks7 decks
-4%synergy
Temple of the False God
14%inclusion1 decks7 decks
8%synergy
Guildless Commons
14%inclusion1 decks7 decks
14%synergy
Rogue's Passage
14%inclusion1 decks7 decks
-8%synergy
Bonders' Enclave
14%inclusion1 decks7 decks
13%synergy
Field of Ruin
14%inclusion1 decks7 decks
13%synergy
Mana Artifacts
Sol Ring
71%inclusion5 decks7 decks
-8%synergy
Arcane Signet
43%inclusion3 decks7 decks
-19%synergy
Golgari Signet
14%inclusion1 decks7 decks
-10%synergy
Talisman of Resilience
14%inclusion1 decks7 decks
-9%synergy
Patchwork Banner
14%inclusion1 decks7 decks
7%synergy
Throne of Eldraine
14%inclusion1 decks7 decks
14%synergy
Lands
Forest
100%inclusion7 decks7 decks
2%synergy
Swamp
86%inclusion6 decks7 decks
-12%synergy
Overgrown Tomb
57%inclusion4 decks7 decks
9%synergy
Command Tower
43%inclusion3 decks7 decks
-43%synergy
Blighted Woodland
29%inclusion2 decks7 decks
25%synergy
Myriad Landscape
29%inclusion2 decks7 decks
16%synergy
Verdant Catacombs
29%inclusion2 decks7 decks
-0%synergy
Undergrowth Stadium
29%inclusion2 decks7 decks
-10%synergy
Underground Mortuary
29%inclusion2 decks7 decks
8%synergy
Bridgeworks Battle
29%inclusion2 decks7 decks
24%synergy
Path of Ancestry
29%inclusion2 decks7 decks
4%synergy
Woodland Cemetery
29%inclusion2 decks7 decks
-36%synergy
Bala Ged Recovery
29%inclusion2 decks7 decks
18%synergy
Vernal Fen
17%inclusion1 decks6 decks
-8%synergy
Turbulent Fen
17%inclusion1 decks6 decks
-1%synergy
Fell the Profane
14%inclusion1 decks7 decks
5%synergy
Golgari Rot Farm
14%inclusion1 decks7 decks
-23%synergy
Exotic Orchard
14%inclusion1 decks7 decks
-15%synergy
Llanowar Wastes
14%inclusion1 decks7 decks
-39%synergy
Conduit Pylons
14%inclusion1 decks7 decks
14%synergy
Captivating Cave
14%inclusion1 decks7 decks
14%synergy
Cave of Temptation
14%inclusion1 decks7 decks
14%synergy
Evolving Wilds
14%inclusion1 decks7 decks
-11%synergy
Wastewood Verge
14%inclusion1 decks7 decks
-6%synergy
Twilight Mire
14%inclusion1 decks7 decks
-27%synergy
Temple of Malady
14%inclusion1 decks7 decks
-19%synergy
Crystal Grotto
14%inclusion1 decks7 decks
14%synergy
Deathcap Glade
14%inclusion1 decks7 decks
-20%synergy
Tainted Wood
14%inclusion1 decks7 decks
-29%synergy
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