Umori, the Collector (Commander) - Upgraded +1/+1 Counters

Michael Celani
Which Slime Against Humanity Commander is Best? A Complete Guide to Slime Against Humanity in Commander
You've got your slimy hands on every copy you could find, but which is the best commander for a Slime Against Humanity Commander deck?
Deck Filters
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Commander Spellbook
Moxfield
Scryfall
MTGStocks
Slime Against Humanity
83% of 12 decks +82% synergy
Thrumming Stone
69% of 13 decks +69% synergy
Uchuulon
62% of 13 decks +61% synergy
Biogenic Ooze
62% of 13 decks +61% synergy
Biowaste Blob
62% of 13 decks +61% synergy
Acidic Slime
62% of 13 decks +58% synergy
The Ozolith
62% of 13 decks +57% synergy
Scavenging Ooze
62% of 13 decks +57% synergy
Gelatinous Cube
54% of 13 decks +54% synergy
Slurrk, All-Ingesting
54% of 13 decks +53% synergy
Top Cards
Heroic Intervention
69% of 13 decks +40% synergy
Aeve, Progenitor Ooze
54% of 13 decks +53% synergy
Green Slime
54% of 13 decks +53% synergy
Oran-Rief Ooze
54% of 13 decks +53% synergy
Inspiring Call
54% of 13 decks +50% synergy
Tribute to the World Tree
54% of 13 decks +49% synergy
Hardened Scales
54% of 13 decks +47% synergy
Doubling Season
54% of 13 decks +39% synergy
Cultivate
54% of 13 decks +12% synergy
Consuming Blob
46% of 13 decks +46% synergy
Game Changers
Demonic Tutor
77% of 13 decks +61% synergy
Vampiric Tutor
46% of 13 decks +34% synergy
Bolas's Citadel
31% of 13 decks +25% synergy
Creatures
Ochre Jelly
46% of 13 decks +46% synergy
Experiment One
38% of 13 decks +38% synergy
Ravenous Slime
38% of 13 decks +38% synergy
Predator Ooze
38% of 13 decks +38% synergy
Mitotic Slime
38% of 13 decks +38% synergy
Necrotic Ooze
38% of 13 decks +37% synergy
Manaplasm
31% of 13 decks +31% synergy
Corrosive Ooze
31% of 13 decks +31% synergy
Mephitic Ooze
23% of 13 decks +23% synergy
Ancient Ooze
23% of 13 decks +23% synergy
Consumptive Goo
23% of 13 decks +23% synergy
Splitting Slime
23% of 13 decks +23% synergy
Metallic Mimic
23% of 13 decks +21% synergy
Adaptive Automaton
23% of 13 decks +21% synergy
Witherbloom Apprentice
23% of 13 decks +19% synergy
Corpsejack Menace
23% of 13 decks +16% synergy
Realmwalker
23% of 13 decks +14% synergy
Instants
Assassin's Trophy
46% of 13 decks +2% synergy
Deathsprout
38% of 13 decks +30% synergy
Dark Ritual
38% of 13 decks +23% synergy
Putrefy
38% of 13 decks +3% synergy
Atomize
38% of 8 decks +34% synergy
Surgical Extraction
31% of 13 decks +31% synergy
Noxious Revival
31% of 13 decks +25% synergy
Deadly Rollick
31% of 13 decks +22% synergy
Beast Within
31% of 13 decks -9% synergy
Abrupt Decay
23% of 13 decks +7% synergy
Golgari Charm
23% of 13 decks +5% synergy
Sorceries
Diabolic Tutor
38% of 13 decks +33% synergy
Kodama's Reach
38% of 13 decks +12% synergy
Rampant Growth
38% of 13 decks +3% synergy
Slime Molding
31% of 13 decks +31% synergy
Miming Slime
31% of 13 decks +30% synergy
Grim Tutor
31% of 13 decks +27% synergy
Toxic Deluge
31% of 13 decks +10% synergy
Gelatinous Genesis
23% of 13 decks +23% synergy
Unnatural Restoration
23% of 13 decks +19% synergy
Regrowth
23% of 13 decks +19% synergy
Triumph of the Hordes
23% of 13 decks +18% synergy
Kindred Dominance
23% of 13 decks +18% synergy
Diabolic Intent
23% of 13 decks +12% synergy
Utility Artifacts
Emerald Medallion
46% of 13 decks +43% synergy
Ozolith, the Shattered Spire
38% of 13 decks +34% synergy
Cloud Key
31% of 13 decks +30% synergy
Spellweaver Helix
23% of 13 decks +23% synergy
Herald's Horn
23% of 13 decks +19% synergy
Vanquisher's Banner
23% of 13 decks +18% synergy
Lightning Greaves
23% of 13 decks +1% synergy
Enchantments
Garruk's Uprising
38% of 13 decks +32% synergy
Parallel Lives
38% of 13 decks +25% synergy
Gutter Grime
31% of 13 decks +30% synergy
Ooze Flux
23% of 13 decks +23% synergy
Phyrexian Arena
23% of 13 decks +9% synergy
Planeswalkers
Jiang Yanggu, Wildcrafter
23% of 13 decks +23% synergy
Utility Lands
Yavimaya, Cradle of Growth
46% of 13 decks +18% synergy
Three Tree City
43% of 7 decks +31% synergy
Karn's Bastion
31% of 13 decks +25% synergy
Reliquary Tower
31% of 13 decks +8% synergy
Urborg, Tomb of Yawgmoth
31% of 13 decks +7% synergy
Oran-Rief, the Vastwood
23% of 13 decks +13% synergy
Mana Artifacts
Sol Ring
85% of 13 decks +4% synergy
Arcane Signet
77% of 13 decks +15% synergy
Golgari Signet
31% of 13 decks +2% synergy
Thought Vessel
23% of 13 decks +17% synergy
Talisman of Resilience
23% of 13 decks -2% synergy
Lands
Woodland Cemetery
77% of 13 decks +19% synergy
Command Tower
69% of 13 decks -16% synergy
Temple of Malady
62% of 13 decks +26% synergy
Undergrowth Stadium
54% of 13 decks +14% synergy
Deathcap Glade
46% of 13 decks +17% synergy
Overgrown Tomb
38% of 13 decks -7% synergy
Llanowar Wastes
38% of 13 decks -14% synergy
Viridescent Bog
38% of 8 decks +18% synergy
Darkbore Pathway
31% of 13 decks +10% synergy
Exotic Orchard
31% of 13 decks +4% synergy
Twilight Mire
31% of 13 decks +0% synergy
Golgari Rot Farm
31% of 13 decks -12% synergy
Underground Mortuary
25% of 12 decks +4% synergy
Haunted Mire
23% of 13 decks +6% synergy
Path of Ancestry
23% of 13 decks +1% synergy
Verdant Catacombs
23% of 13 decks -6% synergy
Necroblossom Snarl
23% of 13 decks -11% synergy