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
1.88% of 1010 decks 19 decks
High Synergy Cards
Hangarback Walker
95% of 19 decks +94% synergy
Shifting Wall
89% of 19 decks +89% synergy
Viscera Seer
89% of 19 decks +74% synergy
Ugin's Conjurant
74% of 19 decks +74% synergy
Endless One
74% of 19 decks +73% synergy
Altar of Dementia
79% of 19 decks +72% synergy
Zulaport Cutthroat
84% of 19 decks +72% synergy
Cruel Celebrant
74% of 19 decks +66% synergy
Pawn of Ulamog
63% of 19 decks +62% synergy
Blood Artist
74% of 19 decks +62% synergy
Top Cards
Elas il-Kor, Sadistic Pilgrim
73% of 15 decks +58% synergy
Phyrexian Altar
68% of 19 decks +61% synergy
Carrion Feeder
63% of 19 decks +53% synergy
Walking Ballista
58% of 19 decks +55% synergy
Grim Haruspex
58% of 19 decks +53% synergy
Bartolomé del Presidio
57% of 7 decks +49% synergy
Pitiless Plunderer
53% of 19 decks +48% synergy
Corpse Knight
53% of 19 decks +47% synergy
Farseek
53% of 19 decks +9% synergy
Swords to Plowshares
53% of 19 decks -11% synergy
Creatures
Sifter of Skulls
47% of 19 decks +47% synergy
Woe Strider
42% of 19 decks +38% synergy
Saffi Eriksdotter
42% of 19 decks +37% synergy
Syr Konrad, the Grim
42% of 19 decks +35% synergy
Sakura-Tribe Elder
42% of 19 decks +20% synergy
Tormod, the Desecrator
37% of 19 decks +36% synergy
Cryptic Trilobite
37% of 19 decks +35% synergy
Midnight Reaper
37% of 19 decks +34% synergy
Beast Whisperer
37% of 19 decks +30% synergy
Faeburrow Elder
32% of 19 decks +23% synergy
Llanowar Elves
32% of 19 decks +16% synergy
Avacyn's Pilgrim
32% of 19 decks +11% synergy
Eternal Witness
32% of 19 decks +6% synergy
Birds of Paradise
32% of 19 decks -5% synergy
Haywire Mite
27% of 15 decks +23% synergy
Memnite
26% of 19 decks +26% synergy
Ornithopter
26% of 19 decks +26% synergy
Doomed Dissenter
21% of 19 decks +21% synergy
Myr Retriever
21% of 19 decks +21% synergy
Phyrexian Walker
21% of 19 decks +21% synergy
Willow Geist
21% of 19 decks +20% synergy
Renegade Rallier
21% of 19 decks +20% synergy
Old Stickfingers
21% of 19 decks +16% synergy
Spore Frog
21% of 19 decks +16% synergy
Fauna Shaman
21% of 19 decks +16% synergy
Fiend Artisan
21% of 19 decks +16% synergy
Reveillark
21% of 19 decks +16% synergy
Solemn Simulacrum
21% of 19 decks +15% synergy
Karmic Guide
21% of 19 decks +14% synergy
Elves of Deep Shadow
21% of 19 decks +7% synergy
Body Launderer
18% of 17 decks +16% synergy
Dimir House Guard
16% of 19 decks +15% synergy
Foundation Breaker
16% of 19 decks +14% synergy
Shriekmaw
16% of 19 decks +13% synergy
Recruiter of the Guard
16% of 19 decks +13% synergy
Fertilid
16% of 19 decks +13% synergy
Teysa Karlov
16% of 19 decks +12% synergy
Knight of Autumn
16% of 19 decks +12% synergy
Heliod, Sun-Crowned
16% of 19 decks +11% synergy
Protean Hulk
16% of 19 decks +11% synergy
Yawgmoth, Thran Physician
16% of 19 decks +10% synergy
Reclamation Sage
16% of 19 decks +9% synergy
Bloom Tender
16% of 19 decks +8% synergy
Fyndhorn Elves
16% of 19 decks +7% synergy
Deathrite Shaman
16% of 19 decks +4% synergy
Elvish Mystic
16% of 19 decks +4% synergy
Instants
Eladamri's Call
42% of 19 decks +32% synergy
Enlightened Tutor
42% of 19 decks +29% synergy
Entomb
32% of 19 decks +21% synergy
Worldly Tutor
32% of 19 decks +20% synergy
Vampiric Tutor
32% of 19 decks +17% synergy
Assassin's Trophy
32% of 19 decks +0% synergy
Despark
26% of 19 decks +16% synergy
Path to Exile
26% of 19 decks -19% synergy
Deadly Dispute
21% of 19 decks +15% synergy
Village Rites
21% of 19 decks +15% synergy
Heroic Intervention
21% of 19 decks -4% synergy
Beast Within
21% of 19 decks -7% synergy
Dark Ritual
16% of 19 decks +10% synergy
Mythos of Nethroi
16% of 19 decks +7% synergy
Teferi's Protection
16% of 19 decks -0% synergy
Anguished Unmaking
16% of 19 decks -14% synergy
Sorceries
Demonic Tutor
42% of 19 decks +25% synergy
Nature's Lore
42% of 19 decks +12% synergy
Diabolic Intent
32% of 19 decks +24% synergy
Eerie Ultimatum
32% of 19 decks +10% synergy
Rampant Growth
32% of 19 decks +4% synergy
Cultivate
32% of 19 decks -14% synergy
Damn
26% of 19 decks +11% synergy
Three Visits
26% of 19 decks +4% synergy
Sign in Blood
21% of 19 decks +18% synergy
Buried Alive
21% of 19 decks +13% synergy
Bala Ged Recovery
21% of 19 decks +13% synergy
Kodama's Reach
21% of 19 decks -5% synergy
Dig Up
16% of 19 decks +14% synergy
Victimize
16% of 19 decks +8% synergy
Night's Whisper
16% of 19 decks +1% synergy
Utility Artifacts
Blasting Station
42% of 19 decks +42% synergy
Skullclamp
26% of 19 decks +11% synergy
Desecrated Tomb
21% of 19 decks +20% synergy
Birthing Pod
16% of 19 decks +11% synergy
Enchantments
Insidious Roots
60% of 5 decks +42% synergy
Parapet
37% of 19 decks +37% synergy
Lumithread Field
37% of 19 decks +37% synergy
Bastion of Remembrance
37% of 19 decks +32% synergy
Glorious Anthem
26% of 19 decks +26% synergy
Enduring Renewal
21% of 19 decks +21% synergy
Fortifying Provisions
21% of 19 decks +21% synergy
Fanatical Devotion
21% of 19 decks +20% synergy
Abzan Ascendancy
21% of 19 decks +15% synergy
Mirari's Wake
21% of 19 decks +8% synergy
Sylvan Library
21% of 19 decks +6% synergy
Gaea's Anthem
16% of 19 decks +16% synergy
Blight Mound
16% of 19 decks +15% synergy
Leyline of Vitality
16% of 19 decks +15% synergy
Evolutionary Leap
16% of 19 decks +14% synergy
Phyrexian Arena
16% of 19 decks +1% synergy
Utility Lands
Takenuma, Abandoned Mire
33% of 18 decks +20% synergy
Boseiju, Who Endures
33% of 18 decks +11% synergy
Phyrexian Tower
32% of 19 decks +21% synergy
Ancient Tomb
26% of 19 decks +18% synergy
Yavimaya, Cradle of Growth
21% of 19 decks -6% synergy
Castle Garenbrig
16% of 19 decks +15% synergy
Urborg, Tomb of Yawgmoth
16% of 19 decks -5% synergy
Bojuka Bog
16% of 19 decks -14% synergy
Mana Artifacts
Arcane Signet
89% of 19 decks +24% synergy
Sol Ring
84% of 19 decks +4% synergy
Jeweled Lotus
26% of 19 decks +23% synergy
Mana Crypt
26% of 19 decks +20% synergy
Fellwar Stone
21% of 19 decks +11% synergy
Talisman of Unity
16% of 19 decks +10% synergy
Talisman of Hierarchy
16% of 19 decks +10% synergy
Talisman of Resilience
16% of 19 decks +9% synergy
Golgari Signet
16% of 19 decks +5% synergy
Lands
Command Tower
84% of 19 decks -6% synergy
Temple Garden
63% of 19 decks +16% synergy
Overgrown Tomb
63% of 19 decks +15% synergy
Undergrowth Stadium
58% of 19 decks +25% synergy
Indatha Triome
58% of 19 decks +14% synergy
Godless Shrine
58% of 19 decks +12% synergy
Vault of Champions
53% of 19 decks +24% synergy
Exotic Orchard
53% of 19 decks -3% synergy
Sunpetal Grove
42% of 19 decks +8% synergy
Windswept Heath
42% of 19 decks +8% synergy
Marsh Flats
42% of 19 decks +8% synergy
Overgrown Farmland
37% of 19 decks +21% synergy
Isolated Chapel
37% of 19 decks +2% synergy
Verdant Catacombs
37% of 19 decks +2% synergy
Woodland Cemetery
37% of 19 decks -1% synergy
Mana Confluence
32% of 19 decks +23% synergy
City of Brass
32% of 19 decks +22% synergy
Bountiful Promenade
32% of 19 decks +1% synergy
Shattered Sanctum
26% of 19 decks +15% synergy
Fabled Passage
26% of 19 decks +13% synergy
Deathcap Glade
26% of 19 decks +12% synergy
Llanowar Wastes
26% of 19 decks -0% synergy
Caves of Koilos
26% of 19 decks -0% synergy
Canopy Vista
26% of 19 decks -19% synergy
Sandsteppe Citadel
26% of 19 decks -25% synergy
Horizon Canopy
21% of 19 decks +14% synergy
Flooded Strand
21% of 19 decks +13% synergy
Scrubland
21% of 19 decks +9% synergy
Savannah
21% of 19 decks +8% synergy
Bayou
21% of 19 decks +8% synergy
Terramorphic Expanse
21% of 19 decks +4% synergy
Evolving Wilds
21% of 19 decks -7% synergy
Nurturing Peatland
16% of 19 decks +10% synergy
Brightclimb Pathway
16% of 19 decks +8% synergy
Darkbore Pathway
16% of 19 decks +8% synergy
Polluted Delta
16% of 19 decks +8% synergy
Branchloft Pathway
16% of 19 decks +7% synergy
Arid Mesa
16% of 19 decks +7% synergy
Bloodstained Mire
16% of 19 decks +7% synergy
Wooded Foothills
16% of 19 decks +6% synergy
Misty Rainforest
16% of 19 decks +6% synergy
Temple of Malady
16% of 19 decks -1% synergy
Murmuring Bosk
16% of 19 decks -5% synergy