Agatha's Soul Cauldron + Spike Feeder + Bloodbond Vampire

Agatha's Soul Cauldron
Spike Feeder
Bloodbond Vampire

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

Valentin, Dean of the Vein
0.24% of 416 decks 1 decks
Creatures
Scion of the Swarm
100% of 1 decks +100% synergy
Ascendant Acolyte
100% of 1 decks +100% synergy
Mindless Automaton
100% of 1 decks +100% synergy
Lifeblood Hydra
100% of 1 decks +100% synergy
Overgrown Arch
100% of 1 decks +100% synergy
Primordial Hydra
100% of 1 decks +100% synergy
Deathless Knight
100% of 1 decks +100% synergy
Wildwood Scourge
100% of 1 decks +100% synergy
Deepwood Denizen
100% of 1 decks +100% synergy
Sapling of Colfenor
100% of 1 decks +100% synergy
Ochre Jelly
100% of 1 decks +99% synergy
Stonecoil Serpent
100% of 1 decks +99% synergy
Benevolent Hydra
100% of 1 decks +99% synergy
Grakmaw, Skyclave Ravager
100% of 1 decks +99% synergy
Bloodthirsty Aerialist
100% of 1 decks +99% synergy
Blood Researcher
100% of 1 decks +99% synergy
Managorger Hydra
100% of 1 decks +98% synergy
Vigor
100% of 1 decks +98% synergy
Incubation Druid
100% of 1 decks +98% synergy
Poison Dart Frog
100% of 1 decks +97% synergy
Slippery Bogbonder
100% of 1 decks +97% synergy
Scute Mob
100% of 1 decks +96% synergy
Kami of Whispered Hopes
100% of 1 decks +94% synergy
Winding Constrictor
100% of 1 decks +94% synergy
Corpsejack Menace
100% of 1 decks +93% synergy
Essence Warden
100% of 1 decks +93% synergy
Beledros Witherbloom
100% of 1 decks +92% synergy
Instants
Evolution Charm
100% of 1 decks +100% synergy
Silkguard
100% of 1 decks +99% synergy
Rushed Rebirth
100% of 1 decks +97% synergy
Infuse with Vitality
100% of 1 decks +97% synergy
Invigorating Surge
100% of 1 decks +97% synergy
Inspiring Call
100% of 1 decks +96% synergy
Gaea's Gift
100% of 1 decks +95% synergy
Go for the Throat
100% of 1 decks +94% synergy
Snakeskin Veil
100% of 1 decks +94% synergy
Mortality Spear
100% of 1 decks +92% synergy
Putrefy
100% of 1 decks +65% synergy
Sorceries
Devouring Tendrils
100% of 1 decks +100% synergy
Urborg Repossession
100% of 1 decks +98% synergy
Essence Harvest
100% of 1 decks +98% synergy
Dig Up
100% of 1 decks +94% synergy
Bala Ged Recovery
100% of 1 decks +87% synergy
Culling Ritual
100% of 1 decks +80% synergy
Nature's Lore
100% of 1 decks +73% synergy
Cultivate
100% of 1 decks +57% synergy
Utility Artifacts
Chalice of Life
100% of 1 decks +100% synergy
Campfire
100% of 1 decks +99% synergy
Fountain of Renewal
100% of 1 decks +99% synergy
Cosmos Elixir
100% of 1 decks +99% synergy
Chimil, the Inner Sun
100% of 1 decks +99% synergy
Tablet of the Guilds
100% of 1 decks +99% synergy
Bow of Nylea
100% of 1 decks +97% synergy
Ozolith, the Shattered Spire
100% of 1 decks +95% synergy
Enchantments
Well Rested
100% of 1 decks +99% synergy
Court of Garenbrig
100% of 1 decks +97% synergy
Hydra's Growth
100% of 1 decks +97% synergy
Innkeeper's Talent
100% of 1 decks +93% synergy
Hardened Scales
100% of 1 decks +93% synergy
Binding the Old Gods
100% of 1 decks +91% synergy
Utility Lands
Drannith Ruins
100% of 1 decks +99% synergy
Sapseep Forest
100% of 1 decks +98% synergy
Mosswort Bridge
100% of 1 decks +95% synergy
Oran-Rief, the Vastwood
100% of 1 decks +90% synergy
Restless Cottage
100% of 1 decks +87% synergy
Mana Artifacts
Pristine Talisman
100% of 1 decks +97% synergy
Arcane Signet
100% of 1 decks +38% synergy
Sol Ring
100% of 1 decks +19% synergy
Lands
Hall of Oracles
100% of 1 decks +100% synergy
Uncharted Haven
100% of 1 decks +99% synergy
Riveteers Overlook
100% of 1 decks +94% synergy
Foul Orchard
100% of 1 decks +93% synergy
Golgari Guildgate
100% of 1 decks +90% synergy
Blooming Marsh
100% of 1 decks +88% synergy
Haunted Mire
100% of 1 decks +81% synergy
Terramorphic Expanse
100% of 1 decks +80% synergy
Jungle Hollow
100% of 1 decks +76% synergy
Exotic Orchard
100% of 1 decks +75% synergy
Command Tower
100% of 1 decks +14% synergy