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 1012 decks 19 decks
High Synergy Cards
Shifting Wall
89% of 19 decks +89% synergy
Hangarback Walker
89% of 19 decks +89% synergy
Zulaport Cutthroat
89% of 19 decks +77% 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
74% of 19 decks +67% 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
Bartolomé del Presidio
67% of 6 decks +58% synergy
Grim Haruspex
63% of 19 decks +58% synergy
Phyrexian Altar
63% of 19 decks +56% synergy
Carrion Feeder
63% of 19 decks +53% synergy
Farseek
58% of 19 decks +14% synergy
Walking Ballista
53% of 19 decks +50% synergy
Pitiless Plunderer
53% of 19 decks +48% synergy
Corpse Knight
53% of 19 decks +47% synergy
Swords to Plowshares
53% of 19 decks -10% synergy
Creatures
Sifter of Skulls
47% of 19 decks +47% synergy
Sakura-Tribe Elder
47% of 19 decks +24% synergy
Midnight Reaper
42% of 19 decks +39% synergy
Woe Strider
42% of 19 decks +38% synergy
Saffi Eriksdotter
42% of 19 decks +37% synergy
Tormod, the Desecrator
37% of 19 decks +36% synergy
Cryptic Trilobite
37% of 19 decks +35% synergy
Syr Konrad, the Grim
37% of 19 decks +30% synergy
Beast Whisperer
37% of 19 decks +29% synergy
Llanowar Elves
37% of 19 decks +21% synergy
Avacyn's Pilgrim
37% of 19 decks +16% synergy
Haywire Mite
33% of 15 decks +30% synergy
Faeburrow Elder
32% of 19 decks +23% synergy
Eternal Witness
32% of 19 decks +6% synergy
Birds of Paradise
32% of 19 decks -5% synergy
Memnite
26% of 19 decks +26% synergy
Ornithopter
26% of 19 decks +26% synergy
Fauna Shaman
26% of 19 decks +21% synergy
Myr Retriever
21% of 19 decks +21% synergy
Phyrexian Walker
21% of 19 decks +21% synergy
Dimir House Guard
21% of 19 decks +21% synergy
Old Stickfingers
21% of 19 decks +16% synergy
Spore Frog
21% of 19 decks +16% synergy
Fiend Artisan
21% of 19 decks +16% synergy
Solemn Simulacrum
21% of 19 decks +14% synergy
Elvish Mystic
21% of 19 decks +9% synergy
Elves of Deep Shadow
21% of 19 decks +7% synergy
Doomed Dissenter
16% of 19 decks +16% synergy
Ranger of Eos
16% of 19 decks +15% synergy
Diligent Farmhand
16% of 19 decks +15% synergy
Willow Geist
16% of 19 decks +15% synergy
Renegade Rallier
16% of 19 decks +14% 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 +12% 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
Reveillark
16% of 19 decks +10% synergy
Reclamation Sage
16% of 19 decks +8% synergy
Karmic Guide
16% of 19 decks +8% 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
Instants
Eladamri's Call
37% of 19 decks +27% synergy
Enlightened Tutor
37% of 19 decks +24% synergy
Vampiric Tutor
32% of 19 decks +17% synergy
Entomb
26% of 19 decks +16% synergy
Worldly Tutor
26% of 19 decks +14% synergy
Assassin's Trophy
26% of 19 decks -5% synergy
Deadly Dispute
21% of 19 decks +15% synergy
Village Rites
21% of 19 decks +15% synergy
Mythos of Nethroi
21% of 19 decks +12% synergy
Despark
21% of 19 decks +11% synergy
Heroic Intervention
21% of 19 decks -4% synergy
Path to Exile
21% of 19 decks -24% synergy
Dark Ritual
16% of 19 decks +10% synergy
Teferi's Protection
16% of 19 decks -0% synergy
Beast Within
16% of 19 decks -13% synergy
Sorceries
Demonic Tutor
42% of 19 decks +24% synergy
Nature's Lore
42% of 19 decks +11% synergy
Cultivate
37% of 19 decks -9% synergy
Rampant Growth
32% of 19 decks +4% synergy
Diabolic Intent
26% of 19 decks +18% synergy
Eerie Ultimatum
26% of 19 decks +4% synergy
Three Visits
26% of 19 decks +4% synergy
Sign in Blood
21% of 19 decks +18% synergy
Bala Ged Recovery
21% of 19 decks +12% synergy
Damn
21% of 19 decks +5% synergy
Primal Growth
16% of 19 decks +15% synergy
Cleansing Nova
16% of 19 decks +14% synergy
Austere Command
16% of 19 decks +8% synergy
Buried Alive
16% of 19 decks +8% synergy
Night's Whisper
16% of 19 decks +1% synergy
Kodama's Reach
16% of 19 decks -10% synergy
Utility Artifacts
Blasting Station
47% of 19 decks +47% synergy
Skullclamp
32% of 19 decks +16% synergy
Desecrated Tomb
21% of 19 decks +20% synergy
Birthing Pod
16% of 19 decks +11% synergy
Enchantments
Insidious Roots
75% of 4 decks +57% synergy
Parapet
42% of 19 decks +42% synergy
Lumithread Field
42% of 19 decks +42% synergy
Bastion of Remembrance
32% of 19 decks +27% 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
Abzan Ascendancy
21% of 19 decks +15% 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
Fanatical Devotion
16% of 19 decks +15% synergy
Evolutionary Leap
16% of 19 decks +14% synergy
Mirari's Wake
16% of 19 decks +3% synergy
Phyrexian Arena
16% of 19 decks +2% 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
Bojuka Bog
21% of 19 decks -9% synergy
Castle Garenbrig
16% of 19 decks +15% synergy
Urborg, Tomb of Yawgmoth
16% of 19 decks -5% synergy
Mana Artifacts
Arcane Signet
84% of 19 decks +19% 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 +4% synergy
Lands
Command Tower
84% of 19 decks -6% synergy
Indatha Triome
63% of 19 decks +20% 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
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 +20% 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
Caves of Koilos
32% of 19 decks +5% synergy
Bountiful Promenade
32% of 19 decks +0% synergy
Shattered Sanctum
26% of 19 decks +14% synergy
Deathcap Glade
26% of 19 decks +12% synergy
Llanowar Wastes
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
Fabled Passage
21% of 19 decks +7% synergy
Terramorphic Expanse
21% of 19 decks +4% synergy
Murmuring Bosk
21% of 19 decks +0% 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
Bloodstained Mire
16% of 19 decks +7% synergy
Arid Mesa
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 -2% synergy