Druid's Call + Cathars' Crusade + Walking Ballista + Primal Vigor

Druid's Call
Cathars' Crusade
Walking Ballista
Primal Vigor

Requires
Druid's Call must be on the battlefield. Cathars' Crusade must be on the battlefield. Walking Ballista must be on the battlefield. Primal Vigor must be on the battlefield. Druid's Call attached to Walking Ballista. Walking Ballista has at least three +1/+1 counters.
Steps
  1. Activate Walking Ballista's first ability by removing a +1/+1 counter from it, dealing 1 damage to itself.
  2. Druid's Call triggers, creating two 1/1 Squirrel creature tokens.
  3. The Squirrels enters the battlefield, triggering Cathars' Crusade twice, putting four +1/+1 counters on each creature you control.
  4. Repeat.
  5. Once you have infinite +1/+1 counters on Walking Ballista, you may remove them to deal infinite damage to any target(s).
Results
Infinite +1/+1 counters. Infinite creature tokens. Infinite damage. Infinite ETB.

Ikra Shidiqi, the Usurper // Yoshimaru, Ever Faithful
2.13% of 47 decks 1 decks
Sovereign Okinec Ahau
0.03% of 3553 decks 1 decks
Creatures
Pious Evangel
100% of 1 decks +100% synergy
Thalisse, Reverent Medium
100% of 1 decks +97% synergy
Rhys the Redeemed
100% of 2 decks +97% synergy
Ashaya, Soul of the Wild
100% of 2 decks +97% synergy
Teysa Karlov
100% of 1 decks +95% synergy
Chatterfang, Squirrel General
100% of 1 decks +95% synergy
Elas il-Kor, Sadistic Pilgrim
100% of 1 decks +88% synergy
Kutzil, Malamet Exemplar
100% of 1 decks +81% synergy
Glint Hawk
50% of 2 decks +50% synergy
Liege of the Hollows
50% of 2 decks +50% synergy
Social Climber
50% of 2 decks +50% synergy
Kor Celebrant
50% of 2 decks +50% synergy
Healer of the Pride
50% of 2 decks +50% synergy
Stone-Seeder Hierophant
50% of 2 decks +50% synergy
Nut Collector
50% of 2 decks +50% synergy
Skyshroud Ranger
50% of 2 decks +49% synergy
Squirrel Mob
50% of 2 decks +49% synergy
Impassioned Orator
50% of 2 decks +49% synergy
Ochre Jelly
50% of 2 decks +49% synergy
Memnite
50% of 2 decks +49% synergy
Distinguished Conjurer
50% of 2 decks +49% synergy
Pir, Imaginative Rascal
50% of 2 decks +49% synergy
Lunarch Veteran
50% of 2 decks +49% synergy
Regal Force
50% of 2 decks +49% synergy
Sigarda, Host of Herons
50% of 2 decks +49% synergy
Mycoloth
50% of 2 decks +48% synergy
Ornithopter
50% of 2 decks +48% synergy
Verdant Sun's Avatar
50% of 2 decks +48% synergy
Teshar, Ancestor's Apostle
50% of 2 decks +48% synergy
Daxos, Blessed by the Sun
50% of 2 decks +48% synergy
Trostani, Selesnya's Voice
50% of 2 decks +47% synergy
Abzan Falconer
50% of 2 decks +47% synergy
Odric, Lunarch Marshal
50% of 2 decks +47% synergy
Essence Warden
50% of 2 decks +47% synergy
Prosperous Innkeeper
50% of 2 decks +47% synergy
Kalonian Hydra
50% of 2 decks +47% synergy
Queen Allenal of Ruadach
50% of 2 decks +47% synergy
Soul's Attendant
50% of 2 decks +47% synergy
Suture Priest
50% of 2 decks +47% synergy
Elvish Archdruid
50% of 2 decks +46% synergy
Puresteel Paladin
50% of 2 decks +46% synergy
Emiel the Blessed
50% of 2 decks +46% synergy
Avacyn, Angel of Hope
50% of 2 decks +46% synergy
Gyre Sage
50% of 2 decks +46% synergy
Nyxbloom Ancient
50% of 2 decks +46% synergy
Priest of Titania
50% of 2 decks +46% synergy
Rishkar, Peema Renegade
50% of 2 decks +45% synergy
Soul Warden
50% of 2 decks +45% synergy
Jaheira, Friend of the Forest
50% of 2 decks +45% synergy
Peregrin Took
50% of 2 decks +45% synergy
Instants
Inspiring Call
50% of 2 decks +42% synergy
Heroic Intervention
50% of 2 decks +20% synergy
Beast Within
50% of 2 decks +11% synergy
Path to Exile
50% of 2 decks +5% synergy
Swords to Plowshares
50% of 2 decks -13% synergy
Sorceries
Chatterstorm
50% of 2 decks +49% synergy
Triumph of the Hordes
50% of 2 decks +46% synergy
Nature's Lore
50% of 2 decks +18% synergy
Rampant Growth
50% of 2 decks +15% synergy
Cultivate
50% of 2 decks +4% synergy
Utility Artifacts
Blasting Station
100% of 2 decks +99% synergy
Thousand-Year Elixir
100% of 2 decks +98% synergy
Power Fist
100% of 1 decks +97% synergy
Orochi Hatchery
50% of 2 decks +50% synergy
Mycosynth Lattice
50% of 2 decks +49% synergy
Clock of Omens
50% of 2 decks +49% synergy
Contagion Engine
50% of 2 decks +49% synergy
Contagion Clasp
50% of 2 decks +49% synergy
Isochron Scepter
50% of 2 decks +48% synergy
Helm of the Host
50% of 2 decks +47% synergy
Skullclamp
50% of 2 decks +38% synergy
Lightning Greaves
50% of 2 decks +25% synergy
Swiftfoot Boots
50% of 2 decks +22% synergy
Enchantments
Case of the Trampled Garden
100% of 1 decks +99% synergy
Conspiracy
100% of 1 decks +99% synergy
Branching Evolution
100% of 2 decks +95% synergy
Mirari's Wake
100% of 2 decks +86% synergy
Enduring Renewal
50% of 2 decks +50% synergy
Cloakwood Hermit
50% of 2 decks +49% synergy
Dictate of Karametra
50% of 2 decks +49% synergy
Earthcraft
50% of 2 decks +49% synergy
Heartbeat of Spring
50% of 2 decks +49% synergy
Squirrel Nest
50% of 2 decks +49% synergy
Leyline of Abundance
50% of 2 decks +49% synergy
Mana Reflection
50% of 2 decks +48% synergy
Growing Ranks
50% of 2 decks +48% synergy
Zendikar Resurgent
50% of 2 decks +47% synergy
Unnatural Growth
50% of 2 decks +44% synergy
Felidar Retreat
50% of 2 decks +43% synergy
Parallel Lives
50% of 2 decks +43% synergy
Hardened Scales
50% of 2 decks +41% synergy
Anointed Procession
50% of 2 decks +41% synergy
Utility Lands
Pendelhaven
50% of 2 decks +50% synergy
Grove of the Guardian
50% of 2 decks +49% synergy
Dryad Arbor
50% of 2 decks +46% synergy
Castle Garenbrig
50% of 2 decks +45% synergy
Nykthos, Shrine to Nyx
50% of 2 decks +44% synergy
Yavimaya, Cradle of Growth
50% of 2 decks +41% synergy
Gavony Township
50% of 2 decks +40% synergy
Urborg, Tomb of Yawgmoth
50% of 2 decks +40% synergy
Mosswort Bridge
50% of 2 decks +40% synergy
Mana Artifacts
Sol Ring
100% of 2 decks +16% synergy
Astral Cornucopia
50% of 2 decks +49% synergy
Everflowing Chalice
50% of 2 decks +45% synergy
Selesnya Signet
50% of 2 decks +41% synergy
Arcane Signet
50% of 2 decks -22% synergy
Lands
Snowfield Sinkhole
100% of 1 decks +97% synergy
Woodland Chasm
100% of 1 decks +95% synergy
Lush Portico
100% of 1 decks +88% synergy
Shattered Sanctum
100% of 1 decks +87% synergy
Deathcap Glade
100% of 1 decks +86% synergy
Sunpetal Grove
100% of 2 decks +77% synergy
Sandsteppe Citadel
100% of 1 decks +74% synergy
Vault of Champions
100% of 1 decks +74% synergy
Isolated Chapel
100% of 1 decks +73% synergy
Woodland Cemetery
100% of 1 decks +72% synergy
Indatha Triome
100% of 1 decks +69% synergy
Canopy Vista
100% of 2 decks +64% synergy
Temple Garden
100% of 2 decks +59% synergy
Godless Shrine
100% of 1 decks +59% synergy
Overgrown Tomb
100% of 1 decks +57% synergy
Command Tower
100% of 2 decks +26% synergy
Arctic Flats
50% of 2 decks +50% synergy
Arctic Treeline
50% of 2 decks +46% synergy
Horizon Canopy
50% of 2 decks +45% synergy
Razorverge Thicket
50% of 2 decks +45% synergy
Selesnya Guildgate
50% of 2 decks +45% synergy
Cavern of Souls
50% of 2 decks +43% synergy
Windswept Heath
50% of 2 decks +40% synergy
Sungrass Prairie
50% of 2 decks +38% synergy
Temple of Plenty
50% of 2 decks +37% synergy
Selesnya Sanctuary
50% of 2 decks +36% synergy
Brushland
50% of 2 decks +34% synergy
Overgrown Farmland
50% of 2 decks +34% synergy
Bountiful Promenade
50% of 2 decks +26% synergy
Exotic Orchard
50% of 2 decks +14% synergy