Colfenor, the Last Yew + Ashnod's Altar + Phyrexian Marauder + Stonecoil Serpent

Colfenor, the Last Yew
Ashnod's Altar
Phyrexian Marauder
Stonecoil Serpent

Requires
Colfenor, the Last Yew must be on the battlefield. Ashnod's Altar must be on the battlefield. Phyrexian Marauder must be on the battlefield. Stonecoil Serpent must be in the graveyard. At least one +1/+1 counter on Phyrexian Marauder.
Steps
  1. Sacrifice Phyrexian Marauder to Ashnod's Altar for .
  2. Colfenor triggers, returning Stonecoil Serpent from your graveyard to your hand.
  3. Cast Stonecoil Serpent for 1.
  4. Sacrifice Stonecoil Serpent to Ashnod's Altar for .
  5. Colfenor triggers, returning Phyrexian Marauder from your graveyard to your hand.
  6. Cast Phyrexian Marauder for 1.
  7. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite storm count.

Colfenor, the Last Yew
2.10% of 1048 decks 22 decks
High Synergy Cards
Shifting Wall
91% of 22 decks +91% synergy
Hangarback Walker
91% of 22 decks +90% synergy
Top Cards
Viscera Seer
91% of 22 decks +74% synergy
Zulaport Cutthroat
86% of 22 decks +73% synergy
Bartolomé del Presidio
80% of 5 decks +71% synergy
Elas il-Kor, Sadistic Pilgrim
76% of 17 decks +60% synergy
Ugin's Conjurant
73% of 22 decks +73% synergy
Endless One
73% of 22 decks +73% synergy
Cruel Celebrant
73% of 22 decks +64% synergy
Blood Artist
73% of 22 decks +60% synergy
Pawn of Ulamog
68% of 22 decks +67% synergy
Altar of Dementia
68% of 22 decks +61% synergy
Creatures
Walking Ballista
59% of 22 decks +56% synergy
Pitiless Plunderer
59% of 22 decks +54% synergy
Grim Haruspex
59% of 22 decks +53% synergy
Corpse Knight
55% of 22 decks +48% synergy
Carrion Feeder
55% of 22 decks +43% synergy
Sakura-Tribe Elder
55% of 22 decks +31% synergy
Sifter of Skulls
45% of 22 decks +45% synergy
Woe Strider
45% of 22 decks +41% synergy
Saffi Eriksdotter
45% of 22 decks +40% synergy
Llanowar Elves
45% of 22 decks +29% synergy
Avacyn's Pilgrim
45% of 22 decks +24% synergy
Midnight Reaper
36% of 22 decks +33% synergy
Faeburrow Elder
36% of 22 decks +28% synergy
Eternal Witness
36% of 22 decks +10% synergy
Birds of Paradise
36% of 22 decks -0% synergy
Haywire Mite
36% of 14 decks +32% synergy
Tormod, the Desecrator
32% of 22 decks +31% synergy
Cryptic Trilobite
32% of 22 decks +30% synergy
Syr Konrad, the Grim
32% of 22 decks +25% synergy
Beast Whisperer
32% of 22 decks +24% synergy
Memnite
27% of 22 decks +27% synergy
Myr Retriever
27% of 22 decks +27% synergy
Ornithopter
27% of 22 decks +27% synergy
Spore Frog
27% of 22 decks +22% synergy
Fiend Artisan
27% of 22 decks +21% synergy
Elvish Mystic
27% of 22 decks +15% synergy
Elves of Deep Shadow
27% of 22 decks +12% synergy
Fauna Shaman
23% of 22 decks +17% synergy
Doomed Dissenter
18% of 22 decks +18% synergy
Ranger of Eos
18% of 22 decks +18% synergy
Diligent Farmhand
18% of 22 decks +18% synergy
Dimir House Guard
18% of 22 decks +18% synergy
Fertilid
18% of 22 decks +14% synergy
Teysa Karlov
18% of 22 decks +14% synergy
Protean Hulk
18% of 22 decks +13% synergy
Old Stickfingers
18% of 22 decks +13% synergy
Solemn Simulacrum
18% of 22 decks +11% synergy
Reclamation Sage
18% of 22 decks +10% synergy
Fyndhorn Elves
18% of 22 decks +9% synergy
Esper Sentinel
18% of 22 decks +3% synergy
Phyrexian Walker
14% of 22 decks +14% synergy
Willow Geist
14% of 22 decks +13% synergy
Caustic Caterpillar
14% of 22 decks +13% synergy
Renegade Rallier
14% of 22 decks +12% synergy
Foundation Breaker
14% of 22 decks +12% synergy
Morbid Opportunist
14% of 22 decks +11% synergy
Recruiter of the Guard
14% of 22 decks +11% synergy
Shriekmaw
14% of 22 decks +11% synergy
Farhaven Elf
14% of 22 decks +10% synergy
Knight of Autumn
14% of 22 decks +9% synergy
Instants
Swords to Plowshares
59% of 22 decks -4% synergy
Vampiric Tutor
41% of 22 decks +26% synergy
Eladamri's Call
36% of 22 decks +26% synergy
Enlightened Tutor
32% of 22 decks +19% synergy
Assassin's Trophy
32% of 22 decks +1% synergy
Path to Exile
32% of 22 decks -12% synergy
Village Rites
27% of 22 decks +21% synergy
Entomb
27% of 22 decks +17% synergy
Worldly Tutor
27% of 22 decks +15% synergy
Beast Within
27% of 22 decks -2% synergy
Mythos of Nethroi
23% of 22 decks +13% synergy
Despark
23% of 22 decks +12% synergy
Heroic Intervention
23% of 22 decks -2% synergy
Anguished Unmaking
23% of 22 decks -7% synergy
Deadly Dispute
18% of 22 decks +12% synergy
Tragic Slip
14% of 22 decks +13% synergy
Ad Nauseam
14% of 22 decks +13% synergy
Return to Nature
14% of 22 decks +12% synergy
Malakir Rebirth
14% of 22 decks +9% synergy
Dark Ritual
14% of 22 decks +8% synergy
Generous Gift
14% of 22 decks -2% synergy
Teferi's Protection
14% of 22 decks -2% synergy
Sorceries
Farseek
64% of 22 decks +20% synergy
Demonic Tutor
50% of 22 decks +32% synergy
Nature's Lore
41% of 22 decks +10% synergy
Cultivate
41% of 22 decks -5% synergy
Rampant Growth
36% of 22 decks +9% synergy
Diabolic Intent
32% of 22 decks +24% synergy
Three Visits
32% of 22 decks +9% synergy
Eerie Ultimatum
27% of 22 decks +5% synergy
Sign in Blood
23% of 22 decks +19% synergy
Buried Alive
23% of 22 decks +14% synergy
Bala Ged Recovery
23% of 22 decks +14% synergy
Kodama's Reach
23% of 22 decks -3% synergy
Primal Growth
18% of 22 decks +18% synergy
Damnation
18% of 22 decks +15% synergy
Damn
18% of 22 decks +2% synergy
Dig Up
14% of 22 decks +11% synergy
Cleansing Nova
14% of 22 decks +11% synergy
Austere Command
14% of 22 decks +6% synergy
Night's Whisper
14% of 22 decks -1% synergy
Utility Artifacts
Phyrexian Altar
68% of 22 decks +61% synergy
Blasting Station
55% of 22 decks +54% synergy
Skullclamp
32% of 22 decks +16% synergy
Desecrated Tomb
23% of 22 decks +22% synergy
Bontu's Monument
14% of 22 decks +13% synergy
Birthing Pod
14% of 22 decks +9% synergy
Enchantments
Insidious Roots
100% of 3 decks +79% synergy
Parapet
41% of 22 decks +41% synergy
Lumithread Field
41% of 22 decks +41% synergy
Bastion of Remembrance
36% of 22 decks +32% synergy
Enduring Renewal
18% of 22 decks +18% synergy
Fortifying Provisions
18% of 22 decks +18% synergy
Glorious Anthem
18% of 22 decks +18% synergy
The Meathook Massacre
18% of 22 decks +13% synergy
Phyrexian Arena
18% of 22 decks +4% synergy
Sylvan Library
18% of 22 decks +3% synergy
Gaea's Anthem
14% of 22 decks +13% synergy
Blight Mound
14% of 22 decks +13% synergy
Leyline of Vitality
14% of 22 decks +13% synergy
Spidersilk Armor
14% of 22 decks +12% synergy
Fecundity
14% of 22 decks +12% synergy
Evolutionary Leap
14% of 22 decks +11% synergy
Abzan Ascendancy
14% of 22 decks +8% synergy
Aura Shards
14% of 22 decks +2% synergy
Smothering Tithe
14% of 22 decks -3% synergy
Utility Lands
Phyrexian Tower
32% of 22 decks +21% synergy
Takenuma, Abandoned Mire
30% of 20 decks +17% synergy
Boseiju, Who Endures
30% of 20 decks +8% synergy
Yavimaya, Cradle of Growth
27% of 22 decks +1% synergy
Bojuka Bog
27% of 22 decks -3% synergy
Ancient Tomb
18% of 22 decks +10% synergy
Urborg, Tomb of Yawgmoth
18% of 22 decks -3% synergy
Mana Artifacts
Arcane Signet
91% of 22 decks +26% synergy
Sol Ring
91% of 22 decks +11% synergy
Jeweled Lotus
27% of 22 decks +23% synergy
Mana Crypt
27% of 22 decks +19% synergy
Talisman of Hierarchy
23% of 22 decks +17% synergy
Talisman of Unity
18% of 22 decks +12% synergy
Talisman of Resilience
18% of 22 decks +11% synergy
Fellwar Stone
18% of 22 decks +8% synergy
Golgari Signet
18% of 22 decks +6% synergy
Orzhov Signet
14% of 22 decks +5% synergy
Commander's Sphere
14% of 22 decks -1% synergy
Lands
Command Tower
82% of 22 decks -9% synergy
Undergrowth Stadium
68% of 22 decks +35% synergy
Indatha Triome
68% of 22 decks +24% synergy
Overgrown Tomb
68% of 22 decks +20% synergy
Temple Garden
64% of 22 decks +16% synergy
Vault of Champions
59% of 22 decks +30% synergy
Godless Shrine
59% of 22 decks +13% synergy
Marsh Flats
50% of 22 decks +15% synergy
Exotic Orchard
50% of 22 decks -5% synergy
Sunpetal Grove
45% of 22 decks +12% synergy
Caves of Koilos
41% of 22 decks +14% synergy
Windswept Heath
41% of 22 decks +7% synergy
Verdant Catacombs
41% of 22 decks +6% synergy
Woodland Cemetery
41% of 22 decks +4% synergy
Overgrown Farmland
36% of 22 decks +20% synergy
Bountiful Promenade
36% of 22 decks +5% synergy
Isolated Chapel
36% of 22 decks +2% synergy
Sandsteppe Citadel
36% of 22 decks -15% synergy
Llanowar Wastes
32% of 22 decks +5% synergy
Canopy Vista
32% of 22 decks -13% synergy
Mana Confluence
27% of 22 decks +19% synergy
City of Brass
27% of 22 decks +17% synergy
Shattered Sanctum
27% of 22 decks +15% synergy
Deathcap Glade
27% of 22 decks +12% synergy
Nurturing Peatland
18% of 22 decks +12% synergy
Horizon Canopy
18% of 22 decks +11% synergy
Darkbore Pathway
18% of 22 decks +10% synergy
Branchloft Pathway
18% of 22 decks +9% synergy
Fabled Passage
18% of 22 decks +5% synergy
Terramorphic Expanse
18% of 22 decks +2% synergy
Murmuring Bosk
18% of 22 decks -3% synergy
Evolving Wilds
18% of 22 decks -10% synergy
Fetid Heath
14% of 22 decks +8% synergy
Prismatic Vista
14% of 22 decks +8% synergy
Flooded Strand
14% of 22 decks +6% synergy
Brightclimb Pathway
14% of 22 decks +6% synergy
Scrubland
14% of 22 decks +1% synergy
Savannah
14% of 22 decks +1% synergy
Bayou
14% of 22 decks +1% synergy
Temple of Malady
14% of 22 decks -4% synergy