Agatha's Soul Cauldron + Spike Feeder + Ajani's Pridemate

Agatha's Soul Cauldron
Spike Feeder
Ajani's Pridemate

Requires
Agatha's Soul Cauldron must be on the battlefield. Spike Feeder must be in exile (exiled by Agatha's Soul Cauldron). Ajani's Pridemate must be on the battlefield.
Steps
  1. Activate Ajani's Pridemate using Spike Feeder's second ability by removing a +1/+1 counter from it, causing you to gain 2 life.
  2. Ajani's Pridemate triggers, putting a +1/+1 counter on itself.
  3. Repeat.
Results
Infinite lifegain. Infinite lifegain triggers.

Shalai and Hallar
0.12% of 8073 decks 10 decks
Trelasarra, Moon Dancer
0.26% of 1934 decks 5 decks
Lathiel, the Bounteous Dawn
0.09% of 4398 decks 4 decks
Kenrith, the Returned King
0.01% of 20705 decks 3 decks
Reyhan, Last of the Abzan // Yoshimaru, Ever Faithful
0.06% of 1632 decks 1 decks
Atraxa, Praetors' Voice
0.00% of 30125 decks 1 decks
High Synergy Cards
The Red Terror
85% of 13 decks +84% synergy
War Elemental
77% of 13 decks +77% synergy
Walking Ballista
79% of 24 decks +77% synergy
Heliod, Sun-Crowned
79% of 24 decks +76% synergy
All Will Be One
77% of 13 decks +74% synergy
Archangel of Thune
71% of 24 decks +68% synergy
Voice of the Blessed
62% of 24 decks +61% synergy
Basking Broodscale
62% of 16 decks +61% synergy
Cleric Class
62% of 24 decks +60% synergy
Hardened Scales
67% of 24 decks +57% synergy
Top Cards
Scurry Oak
58% of 24 decks +57% synergy
The Ozolith
58% of 24 decks +55% synergy
Esper Sentinel
58% of 24 decks +39% synergy
Ozolith, the Shattered Spire
54% of 24 decks +49% synergy
Kami of Whispered Hopes
54% of 24 decks +48% synergy
Quest for Pure Flame
54% of 13 decks +54% synergy
Triskelion
50% of 24 decks +50% synergy
Trelasarra, Moon Dancer
50% of 24 decks +49% synergy
Mayael's Aria
46% of 13 decks +44% synergy
Dockside Extortionist
46% of 13 decks +38% synergy
Game Changers
Vampiric Tutor
60% of 5 decks +43% synergy
Demonic Tutor
60% of 5 decks +39% synergy
Enlightened Tutor
42% of 24 decks +25% synergy
Smothering Tithe
42% of 24 decks +18% synergy
Ancient Tomb
21% of 24 decks +11% synergy
Survival of the Fittest
17% of 24 decks +15% synergy
Drannith Magistrate
17% of 24 decks +11% synergy
Chrome Mox
17% of 24 decks +10% synergy
Trinisphere
12% of 24 decks +12% synergy
Gaea's Cradle
12% of 24 decks +7% synergy
Creatures
Soul's Attendant
46% of 24 decks +42% synergy
Conclave Mentor
46% of 24 decks +42% synergy
Celestial Unicorn
42% of 24 decks +41% synergy
Soul Warden
42% of 24 decks +36% synergy
Ivy Lane Denizen
38% of 24 decks +36% synergy
Vigor
38% of 24 decks +35% synergy
Essence Warden
38% of 24 decks +35% synergy
Rosie Cotton of South Lane
38% of 24 decks +34% synergy
Birds of Paradise
38% of 24 decks +10% synergy
Prosperous Innkeeper
33% of 24 decks +31% synergy
Wildwood Scourge
29% of 24 decks +28% synergy
Phyrexian Devourer
25% of 24 decks +25% synergy
Ageless Entity
25% of 24 decks +25% synergy
Twinblade Paladin
25% of 24 decks +25% synergy
Herd Baloth
25% of 24 decks +24% synergy
Speaker of the Heavens
25% of 24 decks +24% synergy
Lathiel, the Bounteous Dawn
25% of 24 decks +23% synergy
Daxos, Blessed by the Sun
25% of 24 decks +23% synergy
Devoted Druid
25% of 24 decks +22% synergy
Emiel the Blessed
25% of 24 decks +22% synergy
Delighted Halfling
25% of 24 decks +13% synergy
Kutzil, Malamet Exemplar
25% of 24 decks +11% synergy
Kiki-Jiki, Mirror Breaker
23% of 13 decks +20% synergy
Simian Spirit Guide
23% of 13 decks +18% synergy
Gideon's Company
21% of 24 decks +21% synergy
Enduring Scalelord
21% of 24 decks +20% synergy
Abzan Falconer
21% of 24 decks +18% synergy
Suture Priest
21% of 24 decks +18% synergy
Vorinclex, Monstrous Raider
21% of 24 decks +17% synergy
Gyre Sage
21% of 24 decks +17% synergy
Bloom Tender
21% of 24 decks +13% synergy
Llanowar Elves
21% of 24 decks -0% synergy
Crystalline Crawler
17% of 24 decks +16% synergy
Conclave Sledge-Captain
17% of 24 decks +16% synergy
Lunarch Veteran
17% of 24 decks +16% synergy
Abzan Battle Priest
17% of 24 decks +15% synergy
Angel of Vitality
17% of 24 decks +15% synergy
Sunscorch Regent
17% of 24 decks +15% synergy
Good-Fortune Unicorn
17% of 24 decks +14% synergy
Bristly Bill, Spine Sower
17% of 18 decks +13% synergy
Elvish Spirit Guide
17% of 24 decks +13% synergy
Serra Ascendant
17% of 24 decks +13% synergy
Ornithopter of Paradise
17% of 24 decks +12% synergy
Incubation Druid
17% of 24 decks +12% synergy
Archivist of Oghma
17% of 24 decks +11% synergy
Champion of Lambholt
17% of 24 decks +10% synergy
Shalai, Voice of Plenty
17% of 24 decks +10% synergy
Grand Abolisher
17% of 24 decks +8% synergy
Beast Whisperer
17% of 24 decks +5% synergy
Avacyn's Pilgrim
17% of 24 decks +3% synergy
Instants
Worldly Tutor
46% of 24 decks +32% synergy
Swords to Plowshares
46% of 24 decks -17% synergy
Eladamri's Call
42% of 24 decks +31% synergy
Path to Exile
42% of 24 decks -5% synergy
Deflecting Swat
38% of 13 decks +22% synergy
Heroic Intervention
38% of 24 decks +8% synergy
Red Elemental Blast
31% of 13 decks +24% synergy
Lightning Bolt
31% of 13 decks +20% synergy
Silence
29% of 24 decks +23% synergy
Generous Gift
29% of 24 decks +4% synergy
Tamiyo's Safekeeping
25% of 24 decks +19% synergy
Seething Song
23% of 13 decks +17% synergy
Pyroblast
23% of 13 decks +17% synergy
Abrade
23% of 13 decks +12% synergy
Take Up the Shield
21% of 24 decks +20% synergy
Beast Within
21% of 24 decks -16% synergy
Chord of Calling
17% of 24 decks +11% synergy
Return to Nature
17% of 24 decks +11% synergy
Light of Hope
12% of 24 decks +12% synergy
Cosmic Rebirth
12% of 24 decks +10% synergy
Heliod's Intervention
12% of 24 decks +9% synergy
Snakeskin Veil
12% of 24 decks +8% synergy
Veil of Summer
12% of 24 decks +7% synergy
Nature's Claim
12% of 24 decks +4% synergy
Teferi's Protection
12% of 24 decks -7% synergy
Sorceries
Gamble
46% of 13 decks +37% synergy
Farseek
33% of 24 decks -1% synergy
Nature's Lore
25% of 24 decks -7% synergy
Faithless Looting
23% of 13 decks +7% synergy
Jeska's Will
23% of 13 decks +6% synergy
Three Visits
21% of 24 decks -4% synergy
Damning Verdict
17% of 24 decks +15% synergy
Finale of Devastation
17% of 24 decks +9% synergy
Rampant Growth
17% of 24 decks -18% synergy
Cultivate
17% of 24 decks -28% synergy
Sylvan Tutor
12% of 24 decks +11% synergy
Green Sun's Zenith
12% of 24 decks +7% synergy
Shamanic Revelation
12% of 24 decks +4% synergy
Kodama's Reach
12% of 24 decks -18% synergy
Utility Artifacts
Shadowspear
29% of 24 decks +26% synergy
Aetherflux Reservoir
25% of 24 decks +22% synergy
The Great Henge
25% of 24 decks +15% synergy
Swiftfoot Boots
25% of 24 decks -2% synergy
Jeweled Lotus
21% of 24 decks +17% synergy
Well of Lost Dreams
17% of 24 decks +15% synergy
Cosmos Elixir
12% of 24 decks +12% synergy
Staff of Domination
12% of 24 decks +11% synergy
Basilisk Collar
12% of 24 decks +9% synergy
Enchantments
Light of Promise
42% of 24 decks +41% synergy
Branching Evolution
42% of 24 decks +36% synergy
Cathars' Crusade
33% of 24 decks +28% synergy
Uncivil Unrest
31% of 13 decks +29% synergy
Authority of the Consuls
25% of 24 decks +20% synergy
Rhythm of the Wild
23% of 13 decks -0% synergy
Sunbond
21% of 24 decks +20% synergy
Ajani's Welcome
21% of 24 decks +20% synergy
Dawn of Hope
21% of 24 decks +19% synergy
Sylvan Library
21% of 24 decks +10% synergy
Doubling Season
17% of 24 decks +7% synergy
Spirit Link
12% of 24 decks +12% synergy
Resourceful Defense
12% of 24 decks +11% synergy
Carpet of Flowers
12% of 24 decks +9% synergy
Tribute to the World Tree
12% of 24 decks +6% synergy
Planeswalkers
Ajani, the Greathearted
25% of 24 decks +22% synergy
Ajani, Strength of the Pride
17% of 24 decks +15% synergy
Utility Lands
Gavony Township
38% of 24 decks +28% synergy
Boseiju, Who Endures
38% of 24 decks +19% synergy
Yavimaya, Cradle of Growth
25% of 24 decks +16% synergy
Karn's Bastion
21% of 24 decks +16% synergy
Urza's Saga
21% of 24 decks +14% synergy
Reliquary Tower
17% of 24 decks -13% synergy
Radiant Fountain
12% of 24 decks +11% synergy
Strip Mine
12% of 24 decks +10% synergy
Mana Artifacts
Sol Ring
79% of 24 decks -5% synergy
Arcane Signet
62% of 24 decks -10% synergy
Talisman of Impulse
23% of 13 decks +13% synergy
Mana Crypt
21% of 24 decks +15% synergy
Pristine Talisman
17% of 24 decks +15% synergy
Talisman of Unity
12% of 24 decks +5% synergy
Lands
Stomping Ground
77% of 13 decks +37% synergy
Command Tower
75% of 24 decks +1% synergy
Taiga
62% of 13 decks +49% synergy
Jetmir's Garden
62% of 13 decks +30% synergy
Sacred Foundry
62% of 13 decks +26% synergy
Temple Garden
58% of 24 decks +19% synergy
Windswept Heath
54% of 24 decks +44% synergy
Plateau
54% of 13 decks +42% synergy
Spectator Seating
54% of 13 decks +29% synergy
Spire Garden
46% of 13 decks +22% synergy
Rootbound Crag
46% of 13 decks +21% synergy
Wooded Foothills
46% of 24 decks +35% synergy
Arid Mesa
46% of 24 decks +35% synergy
Savannah
46% of 24 decks +33% synergy
Bountiful Promenade
46% of 24 decks +22% synergy
Needleverge Pathway
38% of 13 decks +30% synergy
Sunpetal Grove
33% of 24 decks +9% synergy
Exotic Orchard
33% of 24 decks -3% synergy
Cragcrown Pathway
31% of 13 decks +22% synergy
Karplusan Forest
31% of 13 decks +13% synergy
Rockfall Vale
31% of 13 decks +9% synergy
Battlefield Forge
31% of 13 decks +5% synergy
Clifftop Retreat
31% of 13 decks +0% synergy
Jungle Shrine
31% of 13 decks -2% synergy
Brushland
29% of 24 decks +12% synergy
Branchloft Pathway
25% of 24 decks +17% synergy
Canopy Vista
25% of 24 decks -12% synergy
Cinder Glade
23% of 13 decks -15% synergy
Mana Confluence
21% of 24 decks +14% synergy
City of Brass
21% of 24 decks +13% synergy
Flooded Strand
21% of 24 decks +10% synergy
Verdant Catacombs
21% of 24 decks +10% synergy
Blossoming Sands
17% of 24 decks +10% synergy
Marsh Flats
17% of 24 decks +6% synergy
Misty Rainforest
17% of 24 decks +5% synergy
Forbidden Orchard
12% of 24 decks +10% synergy
Reflecting Pool
12% of 24 decks +7% synergy
Bloodstained Mire
12% of 24 decks +2% synergy
Scalding Tarn
12% of 24 decks +2% synergy
Overgrown Farmland
12% of 24 decks -4% synergy