Agatha's Soul Cauldron + Walking Ballista + Strangleroot Geist

Agatha's Soul Cauldron
Walking Ballista
Strangleroot Geist

Requires
Agatha's Soul Cauldron must be on the battlefield. Walking Ballista must be in exile (exiled by Agatha's Soul Cauldron). Strangleroot Geist must be on the battlefield. Strangleroot Geist has at least one +1/+1 counter on it.
Steps
  1. Activate Strangleroot Geist using Walking Ballista's second ability by removing a +1/+1 counter from it.
  2. Repeat step 1 until Strangleroot Geist has no +1/+1 counters on it.
  3. Resolve all Strangleroot Geist abilities dealing 1 damage to Strangleroot Geist, and any remaining damage to any target(s).
  4. Strangleroot Geist dies as a state-based action due to having 0 toughness.
  5. Strangleroot Geist's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB.

Tayam, Luminous Enigma
1.08% of 5725 decks 62 decks
Ghave, Guru of Spores
0.33% of 6423 decks 21 decks
Grist, the Hunger Tide
0.16% of 5655 decks 9 decks
Hapatra, Vizier of Poisons
0.15% of 4813 decks 7 decks
Falco Spara, Pactweaver
0.07% of 4602 decks 3 decks
Sarulf, Realm Eater
0.09% of 2138 decks 2 decks
The Gitrog, Ravenous Ride
0.05% of 4325 decks 2 decks
Chatterfang, Squirrel General
0.01% of 16546 decks 2 decks
Korvold, Fae-Cursed King
0.01% of 15487 decks 2 decks
Volrath, the Shapestealer
0.07% of 2776 decks 2 decks
Lonis, Genetics Expert
0.34% of 585 decks 2 decks
Kraum, Ludevic's Opus // Reyhan, Last of the Abzan
0.72% of 276 decks 2 decks
Vraska, the Silencer
0.07% of 1455 decks 1 decks
Durnan of the Yawning Portal // Haunted One
1.82% of 55 decks 1 decks
Baba Lysaga, Night Witch
0.02% of 5476 decks 1 decks
Sisay, Weatherlight Captain
0.01% of 12142 decks 1 decks
Wylie Duke, Atiin Hero
0.19% of 533 decks 1 decks
Francisco, Fowl Marauder // Kodama of the East Tree
33.33% of 3 decks 1 decks
New Cards
Enduring Vitality
78% of 18 decks +53% synergy
Marvin, Murderous Mimic
57% of 23 decks +52% synergy
High Synergy Cards
Young Wolf
91% of 148 decks +91% synergy
Devoted Druid
73% of 148 decks +70% synergy
Avacyn's Pilgrim
78% of 97 decks +64% synergy
Ranger-Captain of Eos
66% of 97 decks +61% synergy
Birds of Paradise
88% of 148 decks +61% synergy
Boseiju, Who Endures
76% of 148 decks +56% synergy
Carrion Feeder
61% of 138 decks +56% synergy
Chord of Calling
61% of 148 decks +56% synergy
Wall of Roots
56% of 148 decks +55% synergy
Delighted Halfling
68% of 148 decks +54% synergy
Top Cards
Deflecting Swat
67% of 9 decks +50% synergy
Ignoble Hierarch
67% of 9 decks +41% synergy
Mystic Remora
65% of 17 decks +47% synergy
Fierce Guardianship
65% of 17 decks +47% synergy
Deathrite Shaman
64% of 138 decks +52% synergy
Orcish Bowmasters
64% of 138 decks +53% synergy
Elves of Deep Shadow
63% of 138 decks +52% synergy
Bartolomé del Presidio
61% of 87 decks +54% synergy
Worldly Tutor
59% of 148 decks +45% synergy
Ashnod's Altar
57% of 148 decks +50% synergy
Creatures
Drannith Magistrate
56% of 97 decks +49% synergy
Esper Sentinel
56% of 97 decks +35% synergy
Yawgmoth, Thran Physician
51% of 138 decks +48% synergy
Opposition Agent
51% of 138 decks +44% synergy
Noble Hierarch
50% of 6 decks +34% synergy
Archon of Emeria
47% of 97 decks +45% synergy
Eternal Witness
46% of 148 decks +25% synergy
Basking Broodscale
45% of 62 decks +43% synergy
Aven Interrupter
45% of 56 decks +41% synergy
Ragavan, Nimble Pilferer
44% of 9 decks +37% synergy
Recruiter of the Guard
44% of 97 decks +41% synergy
Zulaport Cutthroat
41% of 138 decks +31% synergy
Thassa's Oracle
41% of 17 decks +34% synergy
Kutzil, Malamet Exemplar
40% of 85 decks +21% synergy
Rishkar, Peema Renegade
40% of 148 decks +35% synergy
Llanowar Elves
40% of 148 decks +19% synergy
Dauntless Dismantler
39% of 89 decks +36% synergy
Bloom Tender
39% of 148 decks +31% synergy
Endurance
38% of 148 decks +36% synergy
Blood Artist
38% of 138 decks +26% synergy
Elvish Mystic
37% of 148 decks +19% synergy
Icatian Moneychanger
36% of 97 decks +36% synergy
Aven Mindcensor
36% of 97 decks +31% synergy
Grand Abolisher
36% of 97 decks +27% synergy
Kinnan, Bonder Prodigy
35% of 17 decks +31% synergy
Eidolon of Rhetoric
35% of 97 decks +33% synergy
Ethersworn Canonist
34% of 97 decks +32% synergy
Sylvan Safekeeper
34% of 148 decks +31% synergy
Grumgully, the Generous
33% of 9 decks +31% synergy
Simian Spirit Guide
33% of 9 decks +28% synergy
Dockside Extortionist
33% of 9 decks +21% synergy
Dauthi Voidwalker
31% of 138 decks +23% synergy
White Plume Adventurer
31% of 97 decks +29% synergy
Heliod, Sun-Crowned
30% of 97 decks +27% synergy
Manglehorn
30% of 148 decks +27% synergy
Fyndhorn Elves
30% of 148 decks +17% synergy
Fathom Mage
29% of 17 decks +26% synergy
Phyrexian Metamorph
29% of 17 decks +22% synergy
Weathered Wayfarer
29% of 97 decks +26% synergy
Rosie Cotton of South Lane
29% of 97 decks +25% synergy
Scurry Oak
28% of 148 decks +27% synergy
Viscera Seer
28% of 138 decks +19% synergy
Skyclave Apparition
28% of 97 decks +25% synergy
Knight of the Reliquary
27% of 97 decks +25% synergy
Nardole, Resourceful Cyborg
27% of 15 decks +26% synergy
Faeburrow Elder
26% of 97 decks +14% synergy
Six
25% of 65 decks +17% synergy
Incubation Druid
24% of 148 decks +19% synergy
Geralf's Messenger
24% of 138 decks +23% synergy
Phyrexian Censor
24% of 97 decks +22% synergy
Instants
Vampiric Tutor
65% of 138 decks +47% synergy
Swords to Plowshares
54% of 97 decks -9% synergy
Enlightened Tutor
47% of 97 decks +30% synergy
Cyclonic Rift
47% of 17 decks +19% synergy
Assassin's Trophy
46% of 138 decks +16% synergy
Force of Will
41% of 17 decks +30% synergy
Crop Rotation
41% of 148 decks +31% synergy
Abrupt Decay
38% of 138 decks +27% synergy
Ripples of Potential
30% of 10 decks +27% synergy
Veil of Summer
30% of 148 decks +23% synergy
Pact of Negation
29% of 17 decks +22% synergy
Swan Song
29% of 17 decks +13% synergy
Arcane Denial
29% of 17 decks +10% synergy
An Offer You Can't Refuse
29% of 17 decks +9% synergy
Entomb
28% of 138 decks +21% synergy
Dark Ritual
28% of 138 decks +6% synergy
Eladamri's Call
28% of 97 decks +17% synergy
Silence
25% of 97 decks +18% synergy
Flusterstorm
24% of 17 decks +17% synergy
Mana Drain
24% of 17 decks +8% synergy
Counterspell
24% of 17 decks -19% synergy
Noxious Revival
20% of 148 decks +14% synergy
Path to Exile
20% of 97 decks -26% synergy
Dismember
19% of 138 decks +16% synergy
Mental Misstep
18% of 17 decks +12% synergy
Force of Negation
18% of 17 decks +8% synergy
Legolas's Quick Reflexes
17% of 126 decks +13% synergy
Force of Vigor
16% of 148 decks +13% synergy
Culling the Weak
15% of 138 decks +11% synergy
Archdruid's Charm
15% of 95 decks +8% synergy
Deadly Rollick
14% of 138 decks +3% synergy
Heroic Intervention
13% of 148 decks -17% synergy
Beast Within
12% of 148 decks -27% synergy
Autumn's Veil
11% of 148 decks +9% synergy
Ad Nauseam
10% of 138 decks +7% synergy
Nature's Claim
10% of 148 decks +0% synergy
Cabal Ritual
8% of 138 decks +3% synergy
Tainted Pact
7% of 138 decks +3% synergy
Tear Asunder
7% of 138 decks +0% synergy
Teferi's Protection
6% of 97 decks -14% synergy
Revitalizing Repast
6% of 53 decks -7% synergy
Anguished Unmaking
5% of 93 decks -19% synergy
Sorceries
Demonic Tutor
58% of 138 decks +36% synergy
Green Sun's Zenith
48% of 148 decks +42% synergy
Neoform
47% of 17 decks +42% synergy
Finale of Devastation
43% of 148 decks +35% synergy
Diabolic Intent
38% of 138 decks +29% synergy
Eldritch Evolution
36% of 148 decks +32% synergy
Blasphemous Act
33% of 9 decks -0% synergy
Fabricate
29% of 17 decks +23% synergy
Reanimate
28% of 138 decks +13% synergy
Imperial Seal
26% of 138 decks +20% synergy
Culling Ritual
18% of 138 decks +7% synergy
Beseech the Mirror
14% of 138 decks +10% synergy
Toxic Deluge
14% of 138 decks -4% synergy
Three Visits
13% of 148 decks -12% synergy
Sevinne's Reclamation
12% of 97 decks +5% synergy
Nature's Lore
11% of 148 decks -21% synergy
Buried Alive
11% of 138 decks +5% synergy
Agadeem's Awakening
9% of 138 decks +5% synergy
Chain of Smog
8% of 138 decks +7% synergy
Damn
8% of 93 decks -9% synergy
Farseek
7% of 148 decks -27% synergy
Damnation
7% of 138 decks -1% synergy
Cultivate
7% of 148 decks -40% synergy
Victimize
7% of 138 decks -5% synergy
Kodama's Reach
6% of 148 decks -26% synergy
Unmarked Grave
6% of 138 decks +3% synergy
Natural Order
5% of 148 decks +3% synergy
Rampant Growth
5% of 148 decks -29% synergy
Grim Tutor
5% of 138 decks +0% synergy
Dread Return
5% of 138 decks -0% synergy
Utility Artifacts
Birthing Pod
30% of 148 decks +27% synergy
Skullclamp
30% of 148 decks +17% synergy
Vexing Bauble
30% of 44 decks +28% synergy
Phyrexian Altar
28% of 148 decks +24% synergy
The One Ring
22% of 148 decks +13% synergy
Wishclaw Talisman
20% of 138 decks +14% synergy
Thousand-Year Elixir
16% of 148 decks +14% synergy
Expedition Map
16% of 148 decks +12% synergy
Lightning Greaves
14% of 148 decks -11% synergy
Altar of Dementia
14% of 148 decks +11% synergy
The Ozolith
13% of 148 decks +9% synergy
The Great Henge
8% of 148 decks -2% synergy
Moonglove Extract
7% of 148 decks +7% synergy
Ozolith, the Shattered Spire
7% of 148 decks +1% synergy
Luxior, Giada's Gift
6% of 148 decks +5% synergy
Enchantments
Insidious Roots
56% of 88 decks +47% synergy
Deafening Silence
48% of 97 decks +46% synergy
Rhystic Study
41% of 17 decks +13% synergy
Underworld Breach
33% of 9 decks +27% synergy
Touch the Spirit Realm
31% of 97 decks +29% synergy
Carpet of Flowers
29% of 148 decks +25% synergy
Sylvan Library
29% of 148 decks +17% synergy
Aura Shards
29% of 97 decks +20% synergy
Swift Reconfiguration
25% of 97 decks +23% synergy
Rule of Law
24% of 97 decks +22% synergy
Abzan Ascendancy
24% of 93 decks +22% synergy
Cryptolith Rite
24% of 148 decks +20% synergy
Simic Ascendancy
24% of 17 decks +18% synergy
Aura of Silence
23% of 97 decks +20% synergy
Earthcraft
22% of 148 decks +21% synergy
Survival of the Fittest
21% of 148 decks +19% synergy
Promise of Bunrei
18% of 97 decks +17% synergy
Nature's Chosen
17% of 148 decks +16% synergy
The Meathook Massacre
16% of 138 decks +11% synergy
Wild Growth
16% of 148 decks +5% synergy
Cathars' Crusade
15% of 97 decks +10% synergy
Utopia Sprawl
15% of 148 decks +7% synergy
Innkeeper's Talent
15% of 27 decks +6% synergy
Necromancy
14% of 138 decks +11% synergy
Necropotence
14% of 138 decks +9% synergy
Animate Dead
14% of 138 decks +4% synergy
Birthing Ritual
13% of 47 decks +11% synergy
Hardened Scales
12% of 148 decks +3% synergy
Blind Obedience
11% of 97 decks +5% synergy
Vraska Joins Up
10% of 69 decks +5% synergy
Hunting Grounds
9% of 97 decks +9% synergy
Smothering Tithe
9% of 97 decks -16% synergy
Leyline of Abundance
8% of 148 decks +7% synergy
Doubling Season
8% of 148 decks -1% synergy
Tribute to the World Tree
7% of 148 decks -1% synergy
Chthonian Nightmare
6% of 64 decks +3% synergy
Concordant Crossroads
6% of 148 decks +3% synergy
Nest of Scarabs
6% of 138 decks +5% synergy
Bastion of Remembrance
6% of 138 decks -0% synergy
Phyrexian Arena
6% of 138 decks -9% synergy
Parallel Lives
5% of 148 decks -2% synergy
Grasp of Fate
5% of 97 decks +2% synergy
Felidar Retreat
5% of 97 decks -2% synergy
Anointed Procession
5% of 97 decks -4% synergy
Dictate of Erebos
5% of 138 decks +1% synergy
Grave Pact
5% of 138 decks +1% synergy
Moldervine Reclamation
5% of 138 decks -4% synergy
Battles
Invasion of Ikoria
18% of 148 decks +12% synergy
Planeswalkers
Tyvar, Jubilant Brawler
49% of 138 decks +44% synergy
Grist, the Hunger Tide
31% of 138 decks +27% synergy
Oko, Thief of Crowns
29% of 17 decks +24% synergy
Tezzeret the Seeker
18% of 17 decks +15% synergy
Utility Lands
Phyrexian Tower
59% of 138 decks +50% synergy
Yavimaya, Cradle of Growth
57% of 148 decks +47% synergy
Ancient Tomb
49% of 148 decks +39% synergy
Gaea's Cradle
45% of 148 decks +40% synergy
Shifting Woodland
44% of 54 decks +35% synergy
Gavony Township
44% of 97 decks +35% synergy
Otawara, Soaring City
35% of 17 decks +18% synergy
Dryad Arbor
32% of 148 decks +28% synergy
Urza's Saga
32% of 148 decks +25% synergy
Urborg, Tomb of Yawgmoth
32% of 148 decks +22% synergy
Centaur Garden
30% of 148 decks +30% synergy
Takenuma, Abandoned Mire
25% of 138 decks +15% synergy
Command Beacon
17% of 148 decks +12% synergy
Bojuka Bog
15% of 138 decks -15% synergy
Eiganjo, Seat of the Empire
10% of 97 decks +1% synergy
Emergence Zone
8% of 148 decks +6% synergy
Cabal Coffers
8% of 138 decks -3% synergy
Spymaster's Vault
8% of 53 decks +3% synergy
Reliquary Tower
7% of 148 decks -22% synergy
Hashep Oasis
5% of 148 decks +4% synergy
Homeward Path
5% of 148 decks +4% synergy
Field of the Dead
5% of 148 decks +2% synergy
Castle Locthwain
5% of 138 decks -0% synergy
Mana Artifacts
Sol Ring
89% of 148 decks +4% synergy
Arcane Signet
43% of 148 decks -29% synergy
Mana Crypt
36% of 148 decks +27% synergy
Jeweled Lotus
30% of 148 decks +24% synergy
Mox Diamond
28% of 148 decks +23% synergy
Chrome Mox
27% of 148 decks +21% synergy
Lion's Eye Diamond
26% of 148 decks +24% synergy
Lotus Petal
25% of 148 decks +18% synergy
Mana Vault
22% of 148 decks +16% synergy
Talisman of Resilience
14% of 138 decks +2% synergy
Fellwar Stone
12% of 148 decks -9% synergy
Mox Opal
10% of 148 decks +6% synergy
Mox Amber
6% of 148 decks +2% synergy
Talisman of Unity
5% of 97 decks -2% synergy
Lands
Command Tower
93% of 148 decks +19% synergy
Temple Garden
91% of 97 decks +50% synergy
Overgrown Tomb
91% of 138 decks +48% synergy
Verdant Catacombs
89% of 148 decks +77% synergy
Breeding Pool
88% of 17 decks +47% synergy
Hallowed Fountain
83% of 6 decks +42% synergy
Steam Vents
80% of 5 decks +41% synergy
Godless Shrine
80% of 93 decks +39% synergy
Blood Crypt
78% of 9 decks +39% synergy
Windswept Heath
72% of 148 decks +62% synergy
Marsh Flats
68% of 148 decks +57% synergy
Spara's Headquarters
67% of 6 decks +35% synergy
Stomping Ground
67% of 9 decks +25% synergy
Watery Grave
64% of 11 decks +23% synergy
Misty Rainforest
63% of 148 decks +51% synergy
City of Brass
56% of 148 decks +48% synergy
Wooded Foothills
56% of 148 decks +46% synergy
Scrubland
56% of 93 decks +42% synergy
Savannah
55% of 97 decks +42% synergy
Bayou
54% of 138 decks +41% synergy
Bloodstained Mire
52% of 148 decks +42% synergy
Polluted Delta
51% of 148 decks +39% synergy
Sea of Clouds
50% of 6 decks +24% synergy
Mana Confluence
49% of 148 decks +42% synergy
Undergrowth Stadium
49% of 138 decks +22% synergy
Badlands
44% of 9 decks +31% synergy
Luxury Suite
44% of 9 decks +18% synergy
Talon Gates of Madara
44% of 41 decks +40% synergy
Gemstone Caverns
43% of 148 decks +38% synergy
Flooded Strand
40% of 148 decks +29% synergy
Bountiful Promenade
39% of 97 decks +15% synergy
Llanowar Wastes
37% of 138 decks +11% synergy
Morphic Pool
36% of 11 decks +10% synergy
Zagoth Triome
36% of 11 decks +6% synergy
Tropical Island
35% of 17 decks +21% synergy
Rejuvenating Springs
35% of 17 decks +7% synergy
Arid Mesa
35% of 148 decks +24% synergy
Underground Mortuary
35% of 92 decks +18% synergy
Exotic Orchard
34% of 148 decks -2% synergy
Vault of Champions
33% of 93 decks +8% synergy
Yavimaya Coast
29% of 17 decks +3% synergy
Indatha Triome
28% of 93 decks -3% synergy
Underground Sea
27% of 11 decks +13% synergy
Cavern of Souls
27% of 148 decks +20% synergy
Woodland Cemetery
26% of 138 decks -2% synergy
Nurturing Peatland
25% of 138 decks +20% synergy
Lush Portico
22% of 74 decks +9% synergy
Brushland
21% of 97 decks +5% synergy
Caves of Koilos
20% of 93 decks -8% synergy
Shadowy Backstreet
20% of 71 decks +6% synergy