Tormod, the Desecrator + Insidious Roots + Snarling Gorehound + Moss-Pit Skeleton

Tormod, the Desecrator
Insidious Roots
Snarling Gorehound
Moss-Pit Skeleton

Requires
Tormod, the Desecrator must be on the battlefield. Insidious Roots must be on the battlefield. Snarling Gorehound must be on the battlefield. Moss-Pit Skeleton must be in the graveyard. You have a way to put a +1/+1 counter on a creature you control.
Steps
  1. Put a +1/+1 counter on a creature you control.
  2. Moss-Pit Skeleton triggers, putting itself on top of your library.
  3. Tormod and Insidious Roots trigger.
  4. Resolve the Tormod trigger, creating a 2/2 Zombie creature token.
  5. When the Zombie enters the battlefield, Snarling Gorehound triggers, causing you to surveil 1, putting Moss-Pit Skeleton into your graveyard from the top of your library.
  6. Resolve the Insidious Roots trigger, creating a 0/1 Plant creature token, then putting a +1/+1 counter on each Plant you control.
  7. Moss-Pit Skeleton and Snarling Gorehound trigger.
  8. Resolve the Snarling Gorehound trigger, causing you to surveil 1.
  9. Resolve the Moss-Pit Skeleton trigger, putting it on top of your library.
  10. Repeat from step 3.
Results
Infinite +1/+1 counters on Plants you control. Infinite creature tokens. Infinite ETB. Infinite surveil.

Kamahl, Heart of Krosa // Tormod, the Desecrator
1.42% of 141 decks 2 decks
Amzu, Swarm's Hunger
0.28% of 717 decks 2 decks
Coram, the Undertaker
0.05% of 3795 decks 2 decks
Izoni, Center of the Web
0.48% of 417 decks 2 decks
Varolz, the Scar-Striped
0.08% of 1233 decks 1 decks
Sidisi, Brood Tyrant
0.02% of 6243 decks 1 decks
Meren of Clan Nel Toth
0.01% of 14905 decks 1 decks
Sidar Kondo of Jamuraa // Tormod, the Desecrator
0.58% of 171 decks 1 decks
Karador, Ghost Chieftain
0.02% of 5443 decks 1 decks
High Synergy Cards
Desecrated Tomb
92% of 13 decks +92% synergy
Chalk Outline
85% of 13 decks +84% synergy
Skull Prophet
85% of 13 decks +80% synergy
Tortured Existence
69% of 13 decks +68% synergy
Ripples of Undeath
71% of 7 decks +65% synergy
Skeleton Crew
62% of 13 decks +60% synergy
Golgari Thug
62% of 13 decks +60% synergy
Stitcher's Supplier
54% of 13 decks +51% synergy
Sakura-Tribe Elder
69% of 13 decks +51% synergy
Grist, Voracious Larva
50% of 8 decks +47% synergy
Top Cards
Syr Konrad, the Grim
54% of 13 decks +45% synergy
Wight of the Reliquary
50% of 8 decks +41% synergy
Golgari Grave-Troll
46% of 13 decks +45% synergy
Altar of Dementia
46% of 13 decks +43% synergy
Eternal Witness
46% of 13 decks +25% synergy
Assassin's Trophy
46% of 13 decks +16% synergy
Ovalchase Daredevil
38% of 13 decks +38% synergy
Amzu, Swarm's Hunger
38% of 13 decks +37% synergy
Grist, the Hunger Tide
38% of 13 decks +35% synergy
Reassembling Skeleton
38% of 13 decks +35% synergy
Creatures
Hazel's Brewmaster
60% of 5 decks +55% synergy
Ygra, Eater of All
50% of 6 decks +45% synergy
Haywire Mite
38% of 13 decks +34% synergy
Aftermath Analyst
38% of 13 decks +34% synergy
Deathrite Shaman
38% of 13 decks +26% synergy
Llanowar Elves
38% of 13 decks +18% synergy
Undead Butler
31% of 13 decks +30% synergy
Cauldron Familiar
31% of 13 decks +30% synergy
Stinkweed Imp
31% of 13 decks +29% synergy
Mosswood Dreadknight
31% of 13 decks +28% synergy
Gilded Goose
31% of 13 decks +27% synergy
Nyx Weaver
31% of 13 decks +27% synergy
Incubation Druid
31% of 13 decks +26% synergy
Elves of Deep Shadow
31% of 13 decks +20% synergy
Birds of Paradise
31% of 13 decks +4% synergy
Forsaken Miner
27% of 11 decks +26% synergy
Egon, God of Death
23% of 13 decks +23% synergy
Death-Priest of Myrkul
23% of 13 decks +23% synergy
Gutterbones
23% of 13 decks +23% synergy
Shambling Shell
23% of 13 decks +23% synergy
Death Tyrant
23% of 13 decks +23% synergy
Ebondeath, Dracolich
23% of 13 decks +22% synergy
Millikin
23% of 13 decks +22% synergy
Generous Ent
23% of 13 decks +22% synergy
Troll of Khazad-dûm
23% of 13 decks +22% synergy
Bloodghast
23% of 13 decks +21% synergy
Massacre Girl
23% of 13 decks +21% synergy
Priest of Forgotten Gods
23% of 13 decks +21% synergy
Fiend Artisan
23% of 13 decks +21% synergy
Gravecrawler
23% of 13 decks +20% synergy
Timeless Witness
23% of 13 decks +20% synergy
Fauna Shaman
23% of 13 decks +20% synergy
Underrealm Lich
23% of 13 decks +20% synergy
Yawgmoth, Thran Physician
23% of 13 decks +19% synergy
Kami of Whispered Hopes
23% of 13 decks +16% synergy
Viscera Seer
23% of 13 decks +14% synergy
Blood Artist
23% of 13 decks +11% synergy
Fyndhorn Elves
23% of 13 decks +10% synergy
Elvish Mystic
23% of 13 decks +5% synergy
Instants
Urgent Necropsy
23% of 13 decks +23% synergy
Grapple with the Past
23% of 13 decks +22% synergy
Abrupt Decay
23% of 13 decks +13% synergy
Sorceries
Life from the Loam
38% of 13 decks +35% synergy
Squirming Emergence
31% of 13 decks +27% synergy
Rise of the Witch-king
31% of 13 decks +24% synergy
Dread Return
23% of 13 decks +18% synergy
Bala Ged Recovery
23% of 13 decks +14% synergy
Victimize
23% of 13 decks +11% synergy
Utility Artifacts
The Underworld Cookbook
31% of 13 decks +30% synergy
Witch's Oven
31% of 13 decks +30% synergy
Matzalantli, the Great Door
31% of 13 decks +29% synergy
Skullclamp
31% of 13 decks +18% synergy
Currency Converter
23% of 13 decks +23% synergy
Perpetual Timepiece
23% of 13 decks +22% synergy
Agatha's Soul Cauldron
23% of 13 decks +21% synergy
Thousand-Year Elixir
23% of 13 decks +21% synergy
Phyrexian Altar
23% of 13 decks +19% synergy
Enchantments
Corpses of the Lost
23% of 13 decks +23% synergy
Skeletal Swarming
23% of 13 decks +23% synergy
Soul Enervation
23% of 13 decks +23% synergy
Planeswalkers
Tyvar, Jubilant Brawler
38% of 13 decks +34% synergy
Utility Lands
Bojuka Bog
38% of 13 decks +8% synergy
Dakmor Salvage
31% of 13 decks +29% synergy
Geier Reach Sanitarium
31% of 13 decks +27% synergy
Takenuma, Abandoned Mire
31% of 13 decks +20% synergy
Dryad Arbor
23% of 13 decks +19% synergy
Urza's Saga
23% of 13 decks +16% synergy
Urborg, Tomb of Yawgmoth
23% of 13 decks +13% synergy
Mana Artifacts
Sol Ring
62% of 13 decks -23% synergy
Arcane Signet
38% of 13 decks -34% synergy
Lands
Command Tower
100% of 13 decks +26% synergy
Woodland Cemetery
77% of 13 decks +49% synergy
Llanowar Wastes
69% of 13 decks +44% synergy
Overgrown Tomb
69% of 13 decks +27% synergy
Necroblossom Snarl
54% of 13 decks +42% synergy
Golgari Rot Farm
54% of 13 decks +36% synergy
Tainted Wood
46% of 13 decks +33% synergy
Underground Mortuary
46% of 13 decks +30% synergy
Twilight Mire
38% of 13 decks +29% synergy
Temple of Malady
38% of 13 decks +22% synergy
Undergrowth Stadium
38% of 13 decks +12% synergy
Exotic Orchard
38% of 13 decks +3% synergy
Viridescent Bog
33% of 12 decks +22% synergy
Haunted Mire
23% of 13 decks +15% synergy
Wooded Foothills
23% of 13 decks +13% synergy
Bloodstained Mire
23% of 13 decks +13% synergy
Verdant Catacombs
23% of 13 decks +12% synergy