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.
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
1.97% of 5737 decks 113 decks
Ghave, Guru of Spores
0.50% of 5772 decks 29 decks
Grist, the Hunger Tide
0.20% of 5422 decks 11 decks
Hapatra, Vizier of Poisons
0.23% of 4371 decks 10 decks
Falco Spara, Pactweaver
0.08% of 3873 decks 3 decks
Korvold, Fae-Cursed King
0.02% of 14066 decks 3 decks
Chatterfang, Squirrel General
0.02% of 16843 decks 3 decks
Kraum, Ludevic's Opus // Reyhan, Last of the Abzan
0.68% of 294 decks 2 decks
Lonis, Genetics Expert
0.25% of 788 decks 2 decks
The Gitrog, Ravenous Ride
0.03% of 6052 decks 2 decks
Sarulf, Realm Eater
0.11% of 1887 decks 2 decks
Volrath, the Shapestealer
0.08% of 2624 decks 2 decks
Kenrith, the Returned King
0.01% of 20938 decks 2 decks
Savra, Queen of the Golgari
0.03% of 3268 decks 1 decks
Thrasios, Triton Hero // Vial Smasher the Fierce
0.03% of 3377 decks 1 decks
Nethroi, Apex of Death
0.02% of 5380 decks 1 decks
Wolverine, Best There Is
0.01% of 6680 decks 1 decks
Xavier Sal, Infested Captain
0.02% of 6084 decks 1 decks
New Cards
Felothar, Dawn of the Abzan
36% of 25 decks +34% synergy
Warden of the Grove
35% of 31 decks +34% synergy
Nature's Rhythm
32% of 31 decks +29% synergy
Voice of Victory
16% of 32 decks +10% synergy
Hollowmurk Siege
12% of 33 decks +9% synergy
High Synergy Cards
Young Wolf
92% of 226 decks +92% synergy
Devoted Druid
75% of 226 decks +72% synergy
Ranger-Captain of Eos
73% of 158 decks +68% synergy
Bartolomé del Presidio
70% of 149 decks +65% synergy
Avacyn's Pilgrim
77% of 158 decks +63% synergy
Carrion Feeder
65% of 212 decks +60% synergy
Chord of Calling
65% of 226 decks +59% synergy
Wall of Roots
60% of 226 decks +59% synergy
Delighted Halfling
70% of 226 decks +59% synergy
Orcish Bowmasters
67% of 212 decks +58% synergy
Top Cards
Birds of Paradise
84% of 226 decks +57% synergy
Deathrite Shaman
64% of 212 decks +52% synergy
Elves of Deep Shadow
63% of 212 decks +53% synergy
Ashnod's Altar
59% of 226 decks +52% synergy
Deflecting Swat
59% of 17 decks +43% synergy
Archon of Emeria
56% of 158 decks +54% synergy
Noble Hierarch
56% of 9 decks +40% synergy
Tyvar, Jubilant Brawler
55% of 212 decks +51% synergy
Deafening Silence
55% of 158 decks +53% synergy
Green Sun's Zenith
55% of 226 decks +49% synergy
Game Changers
Vampiric Tutor
61% of 212 decks +44% synergy
Drannith Magistrate
59% of 158 decks +53% synergy
Fierce Guardianship
58% of 24 decks +40% synergy
Opposition Agent
55% of 212 decks +49% synergy
Ancient Tomb
52% of 226 decks +42% synergy
Gaea's Cradle
51% of 226 decks +45% synergy
Demonic Tutor
48% of 212 decks +26% synergy
Force of Will
46% of 24 decks +35% synergy
Thassa's Oracle
33% of 24 decks +26% synergy
Lion's Eye Diamond
33% of 226 decks +31% synergy
Creatures
Enduring Vitality
55% of 128 decks +48% synergy
Recruiter of the Guard
54% of 158 decks +52% synergy
Aven Interrupter
54% of 125 decks +52% synergy
Ignoble Hierarch
50% of 14 decks +25% synergy
Esper Sentinel
47% of 158 decks +28% synergy
Rishkar, Peema Renegade
47% of 226 decks +43% synergy
Bloom Tender
47% of 226 decks +40% synergy
Eternal Witness
46% of 226 decks +26% synergy
Icatian Moneychanger
44% of 158 decks +44% synergy
Eidolon of Rhetoric
44% of 158 decks +43% synergy
Sylvan Safekeeper
43% of 226 decks +40% synergy
Yawgmoth, Thran Physician
42% of 212 decks +39% synergy
Marvin, Murderous Mimic
41% of 128 decks +40% synergy
Basking Broodscale
41% of 153 decks +39% synergy
Ragavan, Nimble Pilferer
41% of 17 decks +34% synergy
Aven Mindcensor
41% of 158 decks +37% synergy
Faeburrow Elder
41% of 158 decks +29% synergy
White Plume Adventurer
40% of 158 decks +38% synergy
Llanowar Elves
40% of 226 decks +19% synergy
Knight of the Reliquary
39% of 158 decks +37% synergy
Ethersworn Canonist
39% of 158 decks +37% synergy
Psychic Frog
38% of 13 decks +36% synergy
Endurance
36% of 226 decks +34% synergy
Elvish Mystic
36% of 226 decks +19% synergy
Zulaport Cutthroat
35% of 212 decks +26% synergy
Skyclave Apparition
35% of 158 decks +32% synergy
Blood Artist
34% of 212 decks +23% synergy
Weathered Wayfarer
33% of 158 decks +30% synergy
Rosie Cotton of South Lane
33% of 158 decks +30% synergy
Kutzil, Malamet Exemplar
32% of 153 decks +18% synergy
Brightglass Gearhulk
32% of 88 decks +31% synergy
Breena, the Demagogue
31% of 154 decks +28% synergy
Incubation Druid
30% of 226 decks +25% synergy
Circle of Dreams Druid
30% of 226 decks +26% synergy
Grumgully, the Generous
29% of 17 decks +27% synergy
Simian Spirit Guide
29% of 17 decks +24% synergy
Kinnan, Bonder Prodigy
29% of 24 decks +25% synergy
Phyrexian Metamorph
29% of 24 decks +22% synergy
Dauntless Dismantler
29% of 153 decks +27% synergy
Mayhem Devil
29% of 14 decks +19% synergy
Manglehorn
28% of 226 decks +25% synergy
Grand Abolisher
28% of 158 decks +19% synergy
Fyndhorn Elves
25% of 226 decks +13% synergy
The Red Terror
24% of 17 decks +23% synergy
Imperial Recruiter
24% of 17 decks +18% synergy
Dauthi Voidwalker
23% of 212 decks +16% synergy
Heliod, Sun-Crowned
23% of 158 decks +20% synergy
Geralf's Messenger
23% of 212 decks +22% synergy
Viscera Seer
23% of 212 decks +14% synergy
Ob Nixilis, Captive Kingpin
21% of 14 decks +20% synergy
Instants
Worldly Tutor
52% of 226 decks +38% synergy
Crop Rotation
48% of 226 decks +39% synergy
Swords to Plowshares
47% of 158 decks -15% synergy
Assassin's Trophy
40% of 212 decks +10% synergy
Swan Song
38% of 24 decks +21% synergy
Cyclonic Rift
38% of 24 decks +11% synergy
Enlightened Tutor
34% of 158 decks +17% synergy
Abrupt Decay
33% of 212 decks +23% synergy
Flusterstorm
29% of 24 decks +22% synergy
Veil of Summer
25% of 226 decks +20% synergy
Pact of Negation
25% of 24 decks +18% synergy
Force of Negation
25% of 24 decks +16% synergy
Counterspell
25% of 24 decks -17% synergy
Pyroblast
24% of 17 decks +18% synergy
Red Elemental Blast
24% of 17 decks +17% synergy
Dark Ritual
23% of 212 decks +0% synergy
Entomb
21% of 212 decks +14% synergy
Eladamri's Call
21% of 158 decks +11% synergy
Mystical Tutor
21% of 24 decks +7% synergy
Mana Drain
21% of 24 decks +6% synergy
Arcane Denial
21% of 24 decks +1% synergy
An Offer You Can't Refuse
21% of 24 decks -1% synergy
Dismember
19% of 212 decks +16% synergy
Silence
18% of 158 decks +12% synergy
Legolas's Quick Reflexes
18% of 221 decks +15% synergy
Abrade
18% of 17 decks +6% synergy
Mental Misstep
17% of 24 decks +11% synergy
Brainstorm
17% of 24 decks -3% synergy
Noxious Revival
16% of 226 decks +11% synergy
Path to Exile
16% of 158 decks -31% synergy
Force of Vigor
13% of 226 decks +10% synergy
Deadly Rollick
13% of 212 decks +2% synergy
Ripples of Potential
13% of 23 decks +11% synergy
Beast Within
13% of 226 decks -24% synergy
Borne Upon a Wind
12% of 24 decks +9% synergy
Mindbreak Trap
12% of 24 decks +8% synergy
Negate
12% of 24 decks -10% synergy
Heroic Intervention
12% of 226 decks -17% synergy
Culling the Weak
12% of 212 decks +8% synergy
Archdruid's Charm
10% of 194 decks +5% synergy
Ad Nauseam
10% of 212 decks +7% synergy
Nature's Claim
10% of 226 decks +1% synergy
Autumn's Veil
8% of 226 decks +7% synergy
Tainted Pact
6% of 212 decks +2% synergy
Cabal Ritual
6% of 212 decks +1% synergy
Teferi's Protection
6% of 158 decks -13% synergy
Anguished Unmaking
5% of 154 decks -19% synergy
Sorceries
Neoform
42% of 24 decks +37% synergy
Gamble
41% of 17 decks +32% synergy
Jeska's Will
41% of 17 decks +25% synergy
Finale of Devastation
39% of 226 decks +31% synergy
Eldritch Evolution
33% of 226 decks +28% synergy
Diabolic Intent
30% of 212 decks +22% synergy
Blasphemous Act
29% of 17 decks -4% synergy
Fabricate
25% of 24 decks +19% synergy
Reanimate
23% of 212 decks +6% synergy
Imperial Seal
20% of 212 decks +14% synergy
Vandalblast
18% of 17 decks +2% synergy
Culling Ritual
16% of 212 decks +5% synergy
Ponder
12% of 24 decks +0% synergy
Nature's Lore
12% of 226 decks -19% synergy
Three Visits
11% of 226 decks -13% synergy
Toxic Deluge
11% of 212 decks -7% synergy
Sevinne's Reclamation
10% of 158 decks +3% synergy
Beseech the Mirror
9% of 212 decks +6% synergy
Chain of Smog
8% of 212 decks +7% synergy
Farseek
8% of 226 decks -27% synergy
Agadeem's Awakening
7% of 212 decks +4% synergy
Buried Alive
7% of 212 decks +1% synergy
Rampant Growth
7% of 226 decks -28% synergy
Cultivate
7% of 226 decks -38% synergy
Damn
6% of 154 decks -10% synergy
Natural Order
6% of 226 decks +4% synergy
Unearth
6% of 212 decks +2% synergy
Damnation
6% of 212 decks -2% synergy
Victimize
6% of 212 decks -6% synergy
Utility Artifacts
Birthing Pod
31% of 226 decks +28% synergy
Lotus Petal
25% of 226 decks +18% synergy
Skullclamp
25% of 226 decks +13% synergy
Phyrexian Altar
23% of 226 decks +20% synergy
Vexing Bauble
21% of 150 decks +20% synergy
Expedition Map
21% of 226 decks +18% synergy
The One Ring
20% of 226 decks +12% synergy
Jeweled Lotus
19% of 226 decks +15% synergy
Wishclaw Talisman
17% of 212 decks +12% synergy
Thousand-Year Elixir
16% of 226 decks +14% synergy
Altar of Dementia
13% of 226 decks +10% synergy
Lightning Greaves
10% of 226 decks -15% synergy
The Ozolith
9% of 226 decks +6% synergy
Ozolith, the Shattered Spire
6% of 226 decks +1% synergy
Moonglove Extract
6% of 226 decks +6% synergy
The Great Henge
6% of 226 decks -4% synergy
Enchantments
Mystic Remora
50% of 24 decks +33% synergy
Rhystic Study
46% of 24 decks +19% synergy
Insidious Roots
42% of 180 decks +36% synergy
Aura Shards
41% of 158 decks +32% synergy
Swift Reconfiguration
39% of 158 decks +38% synergy
Touch the Spirit Realm
39% of 158 decks +37% synergy
Carpet of Flowers
32% of 226 decks +28% synergy
Cryptolith Rite
31% of 226 decks +27% synergy
Earthcraft
30% of 226 decks +29% synergy
Underworld Breach
24% of 17 decks +18% synergy
Nature's Chosen
23% of 226 decks +23% synergy
Sylvan Library
23% of 226 decks +13% synergy
Aura of Silence
23% of 158 decks +21% synergy
Survival of the Fittest
22% of 226 decks +20% synergy
Rule of Law
20% of 158 decks +19% synergy
Abzan Ascendancy
18% of 154 decks +17% synergy
Leyline of Abundance
17% of 226 decks +15% synergy
Simic Ascendancy
17% of 24 decks +11% synergy
Wild Growth
15% of 226 decks +4% synergy
Animate Dead
14% of 212 decks +5% synergy
Promise of Bunrei
13% of 158 decks +13% synergy
The Meathook Massacre
13% of 212 decks +8% synergy
Necropotence
13% of 212 decks +8% synergy
Necromancy
13% of 212 decks +10% synergy
Cathars' Crusade
13% of 158 decks +7% synergy
Utopia Sprawl
12% of 226 decks +4% synergy
Vraska Joins Up
12% of 156 decks +8% synergy
Hardened Scales
9% of 226 decks +0% synergy
Birthing Ritual
9% of 151 decks +8% synergy
Blind Obedience
8% of 158 decks +2% synergy
Smothering Tithe
8% of 158 decks -16% synergy
Concordant Crossroads
8% of 226 decks +5% synergy
Ripples of Undeath
7% of 144 decks +2% synergy
Doubling Season
7% of 226 decks -3% synergy
Chthonian Nightmare
6% of 149 decks +4% synergy
Hunting Grounds
6% of 158 decks +5% synergy
Grasp of Fate
6% of 158 decks +2% synergy
Tribute to the World Tree
5% of 226 decks -1% synergy
Battles
Invasion of Ikoria
12% of 226 decks +9% synergy
Planeswalkers
Grist, the Hunger Tide
27% of 212 decks +23% synergy
Oko, Thief of Crowns
21% of 24 decks +16% synergy
Tezzeret the Seeker
12% of 24 decks +10% synergy
Utility Lands
Boseiju, Who Endures
77% of 226 decks +58% synergy
Phyrexian Tower
61% of 212 decks +53% synergy
Yavimaya, Cradle of Growth
58% of 226 decks +49% synergy
Gavony Township
53% of 158 decks +43% synergy
Dryad Arbor
40% of 226 decks +36% synergy
Centaur Garden
39% of 226 decks +39% synergy
Otawara, Soaring City
38% of 24 decks +21% synergy
Shifting Woodland
36% of 153 decks +29% synergy
Urza's Saga
33% of 226 decks +26% synergy
Urborg, Tomb of Yawgmoth
26% of 226 decks +17% synergy
Command Beacon
25% of 226 decks +21% synergy
Takenuma, Abandoned Mire
20% of 212 decks +10% synergy
Alchemist's Refuge
17% of 24 decks +10% synergy
Bojuka Bog
13% of 212 decks -17% synergy
Emergence Zone
7% of 226 decks +5% synergy
Eiganjo, Seat of the Empire
6% of 158 decks -2% synergy
Reliquary Tower
6% of 226 decks -24% synergy
Cabal Coffers
5% of 212 decks -5% synergy
Mana Artifacts
Sol Ring
91% of 226 decks +7% synergy
Arcane Signet
41% of 226 decks -31% synergy
Talisman of Dominance
29% of 17 decks -3% synergy
Mox Diamond
28% of 226 decks +24% synergy
Chrome Mox
27% of 226 decks +21% synergy
Talisman of Impulse
24% of 17 decks +14% synergy
Mana Crypt
22% of 226 decks +16% synergy
Mana Vault
21% of 226 decks +15% synergy
Machine God's Effigy
12% of 24 decks +11% synergy
Talisman of Curiosity
12% of 24 decks -1% synergy
Talisman of Resilience
12% of 212 decks -0% synergy
Fellwar Stone
12% of 226 decks -9% synergy
Mox Opal
9% of 226 decks +4% synergy
Mox Amber
7% of 226 decks +3% synergy
Lands
Command Tower
92% of 226 decks +17% synergy
Temple Garden
90% of 158 decks +50% synergy
Hallowed Fountain
89% of 9 decks +49% synergy
Overgrown Tomb
89% of 212 decks +47% synergy
Breeding Pool
88% of 24 decks +47% synergy
Verdant Catacombs
85% of 226 decks +74% synergy
Godless Shrine
77% of 154 decks +36% synergy
Watery Grave
76% of 17 decks +36% synergy
Steam Vents
75% of 8 decks +37% synergy
Windswept Heath
73% of 226 decks +62% synergy
Marsh Flats
72% of 226 decks +61% synergy
Misty Rainforest
65% of 226 decks +54% synergy
Blood Crypt
64% of 14 decks +26% synergy
Scrubland
62% of 154 decks +48% synergy
Wooded Foothills
62% of 226 decks +51% synergy
Savannah
61% of 158 decks +49% synergy
Bayou
59% of 212 decks +46% synergy
Stomping Ground
59% of 17 decks +18% synergy
City of Brass
58% of 226 decks +50% synergy
Mana Confluence
53% of 226 decks +46% synergy
Polluted Delta
52% of 226 decks +41% synergy
Bloodstained Mire
52% of 226 decks +41% synergy
Flooded Strand
46% of 226 decks +35% synergy
Spara's Headquarters
44% of 9 decks +15% synergy
Gemstone Caverns
43% of 226 decks +38% synergy
Badlands
43% of 14 decks +30% synergy
Arid Mesa
42% of 226 decks +32% synergy
Underground Sea
41% of 17 decks +27% synergy
Morphic Pool
41% of 17 decks +15% synergy
Talon Gates of Madara
40% of 149 decks +38% synergy
Undergrowth Stadium
39% of 212 decks +13% synergy
Volcanic Island
38% of 8 decks +24% synergy
Cavern of Souls
34% of 226 decks +27% synergy
Exotic Orchard
34% of 226 decks -2% synergy
Tundra
33% of 9 decks +19% synergy
Tropical Island
33% of 24 decks +19% synergy
Sea of Clouds
33% of 9 decks +7% synergy
Rejuvenating Springs
33% of 24 decks +5% synergy
Bountiful Promenade
30% of 158 decks +7% synergy
Llanowar Wastes
30% of 212 decks +4% synergy
Zagoth Triome
29% of 17 decks -0% synergy
Luxury Suite
29% of 14 decks +3% synergy
Indatha Triome
28% of 154 decks -2% synergy
Lush Portico
26% of 141 decks +16% synergy
Underground Mortuary
24% of 181 decks +11% synergy
Taiga
24% of 17 decks +11% synergy
Vault of Champions
23% of 154 decks -3% synergy
Undercity Sewers
21% of 14 decks +11% synergy
Ziatora's Proving Ground
21% of 14 decks -8% synergy
Woodland Cemetery
21% of 212 decks -9% synergy