Colfenor, the Last Yew + Ashnod's Altar + Phyrexian Marauder + Endless One

Colfenor, the Last Yew
Ashnod's Altar
Phyrexian Marauder
Endless One

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. Endless One 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 Endless One from your graveyard to your hand.
  3. Cast Endless One for 1.
  4. Sacrifice Endless One 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
1.48% of 1012 decks 15 decks
High Synergy Cards
Shifting Wall
93% of 15 decks +93% synergy
Ugin's Conjurant
93% of 15 decks +93% synergy
Stonecoil Serpent
93% of 15 decks +93% synergy
Hangarback Walker
93% of 15 decks +93% synergy
Viscera Seer
93% of 15 decks +78% synergy
Zulaport Cutthroat
87% of 15 decks +74% synergy
Pawn of Ulamog
73% of 15 decks +72% synergy
Sifter of Skulls
67% of 15 decks +66% synergy
Cruel Celebrant
73% of 15 decks +66% synergy
Walking Ballista
67% of 15 decks +64% synergy
Top Cards
Blood Artist
73% of 15 decks +61% synergy
Altar of Dementia
67% of 15 decks +60% synergy
Carrion Feeder
67% of 15 decks +56% synergy
Elas il-Kor, Sadistic Pilgrim
67% of 12 decks +51% synergy
Pitiless Plunderer
60% of 15 decks +55% synergy
Corpse Knight
60% of 15 decks +54% synergy
Phyrexian Altar
60% of 15 decks +53% synergy
Farseek
60% of 15 decks +16% synergy
Cryptic Trilobite
53% of 15 decks +51% synergy
Grim Haruspex
53% of 15 decks +48% synergy
Creatures
Omarthis, Ghostfire Initiate
50% of 6 decks +50% synergy
Haywire Mite
42% of 12 decks +38% synergy
Woe Strider
40% of 15 decks +36% synergy
Saffi Eriksdotter
40% of 15 decks +35% synergy
Syr Konrad, the Grim
40% of 15 decks +33% synergy
Beast Whisperer
40% of 15 decks +32% synergy
Sakura-Tribe Elder
40% of 15 decks +17% synergy
Tormod, the Desecrator
33% of 15 decks +32% synergy
Midnight Reaper
33% of 15 decks +30% synergy
Spore Frog
33% of 15 decks +28% synergy
Eternal Witness
33% of 15 decks +8% synergy
Fauna Shaman
27% of 15 decks +21% synergy
Faeburrow Elder
27% of 15 decks +18% synergy
Llanowar Elves
27% of 15 decks +11% synergy
Avacyn's Pilgrim
27% of 15 decks +6% synergy
Birds of Paradise
27% of 15 decks -10% synergy
Memnite
20% of 15 decks +20% synergy
Doomed Dissenter
20% of 15 decks +20% synergy
Phyrexian Walker
20% of 15 decks +20% synergy
Ornithopter
20% of 15 decks +20% synergy
Dimir House Guard
20% of 15 decks +19% synergy
Willow Geist
20% of 15 decks +19% synergy
Renegade Rallier
20% of 15 decks +18% synergy
Foundation Breaker
20% of 15 decks +18% synergy
Poison-Tip Archer
20% of 15 decks +17% synergy
Heliod, Sun-Crowned
20% of 15 decks +16% synergy
Old Stickfingers
20% of 15 decks +15% synergy
Reclamation Sage
20% of 15 decks +13% synergy
Karmic Guide
20% of 15 decks +12% synergy
Instants
Swords to Plowshares
53% of 15 decks -10% synergy
Enlightened Tutor
47% of 15 decks +34% synergy
Eladamri's Call
40% of 15 decks +30% synergy
Mythos of Nethroi
33% of 15 decks +25% synergy
Vampiric Tutor
33% of 15 decks +19% synergy
Heroic Intervention
27% of 15 decks +2% synergy
Assassin's Trophy
27% of 15 decks -5% synergy
Path to Exile
27% of 15 decks -18% synergy
Dark Ritual
20% of 15 decks +14% synergy
Despark
20% of 15 decks +10% synergy
Entomb
20% of 15 decks +10% synergy
Worldly Tutor
20% of 15 decks +8% synergy
Teferi's Protection
20% of 15 decks +4% synergy
Sorceries
Nature's Lore
47% of 15 decks +16% synergy
Demonic Tutor
40% of 15 decks +22% synergy
Rampant Growth
40% of 15 decks +13% synergy
Three Visits
33% of 15 decks +11% synergy
Cultivate
33% of 15 decks -13% synergy
Sign in Blood
27% of 15 decks +23% synergy
Diabolic Intent
27% of 15 decks +19% synergy
Cleansing Nova
20% of 15 decks +18% synergy
Bala Ged Recovery
20% of 15 decks +11% synergy
Night's Whisper
20% of 15 decks +5% synergy
Damn
20% of 15 decks +4% synergy
Eerie Ultimatum
20% of 15 decks -2% synergy
Utility Artifacts
Blasting Station
47% of 15 decks +46% synergy
Skullclamp
33% of 15 decks +18% synergy
Desecrated Tomb
27% of 15 decks +26% synergy
Birthing Pod
20% of 15 decks +15% synergy
Enchantments
Parapet
47% of 15 decks +47% synergy
Lumithread Field
40% of 15 decks +40% synergy
Glorious Anthem
33% of 15 decks +33% synergy
Abzan Ascendancy
33% of 15 decks +28% synergy
Fortifying Provisions
27% of 15 decks +27% synergy
Blight Mound
27% of 15 decks +26% synergy
Bastion of Remembrance
27% of 15 decks +22% synergy
Phyrexian Arena
27% of 15 decks +12% synergy
Enduring Renewal
20% of 15 decks +20% synergy
Gutter Grime
20% of 15 decks +20% synergy
Fanatical Devotion
20% of 15 decks +19% synergy
Sylvan Library
20% of 15 decks +5% synergy
Utility Lands
Takenuma, Abandoned Mire
40% of 15 decks +27% synergy
Boseiju, Who Endures
40% of 15 decks +18% synergy
Ancient Tomb
33% of 15 decks +25% synergy
Phyrexian Tower
33% of 15 decks +23% synergy
Bojuka Bog
33% of 15 decks +3% synergy
Yavimaya, Cradle of Growth
27% of 15 decks +0% synergy
Castle Garenbrig
20% of 15 decks +19% synergy
High Market
20% of 15 decks +14% synergy
Urborg, Tomb of Yawgmoth
20% of 15 decks -1% synergy
Mana Artifacts
Arcane Signet
80% of 15 decks +15% synergy
Sol Ring
80% of 15 decks -0% synergy
Jeweled Lotus
27% of 15 decks +23% synergy
Mana Crypt
27% of 15 decks +20% synergy
Talisman of Unity
20% of 15 decks +14% synergy
Talisman of Hierarchy
20% of 15 decks +14% synergy
Talisman of Resilience
20% of 15 decks +13% synergy
Fellwar Stone
20% of 15 decks +10% synergy
Lands
Command Tower
87% of 15 decks -4% synergy
Temple Garden
60% of 15 decks +13% synergy
Overgrown Tomb
60% of 15 decks +12% synergy
Undergrowth Stadium
53% of 15 decks +21% synergy
Indatha Triome
53% of 15 decks +10% synergy
Godless Shrine
53% of 15 decks +7% synergy
Exotic Orchard
53% of 15 decks -2% synergy
Vault of Champions
47% of 15 decks +18% synergy
Marsh Flats
47% of 15 decks +12% synergy
Overgrown Farmland
40% of 15 decks +24% synergy
Sunpetal Grove
40% of 15 decks +6% synergy
Windswept Heath
40% of 15 decks +6% synergy
Isolated Chapel
40% of 15 decks +5% synergy
Verdant Catacombs
40% of 15 decks +5% synergy
Woodland Cemetery
40% of 15 decks +3% synergy
Shattered Sanctum
33% of 15 decks +21% synergy
Caves of Koilos
33% of 15 decks +6% synergy
Canopy Vista
33% of 15 decks -11% synergy
Sandsteppe Citadel
33% of 15 decks -18% synergy
Horizon Canopy
27% of 15 decks +19% synergy
Mana Confluence
27% of 15 decks +18% synergy
City of Brass
27% of 15 decks +17% synergy
Scrubland
27% of 15 decks +14% synergy
Savannah
27% of 15 decks +14% synergy
Bayou
27% of 15 decks +14% synergy
Fabled Passage
27% of 15 decks +13% synergy
Deathcap Glade
27% of 15 decks +12% synergy
Llanowar Wastes
27% of 15 decks +0% synergy
Bountiful Promenade
27% of 15 decks -4% synergy
Nurturing Peatland
20% of 15 decks +14% synergy
Flooded Strand
20% of 15 decks +12% synergy
Polluted Delta
20% of 15 decks +12% synergy
Bloodstained Mire
20% of 15 decks +11% synergy
Arid Mesa
20% of 15 decks +11% synergy
Wooded Foothills
20% of 15 decks +10% synergy
Misty Rainforest
20% of 15 decks +10% synergy
Tainted Field
20% of 15 decks +9% synergy
Terramorphic Expanse
20% of 15 decks +3% synergy
Murmuring Bosk
20% of 15 decks -1% synergy
Path of Ancestry
20% of 15 decks -6% synergy
Evolving Wilds
20% of 15 decks -8% synergy