Colfenor, the Last Yew + Ashnod's Altar + Phyrexian Marauder + Ugin's Conjurant

Colfenor, the Last Yew
Ashnod's Altar
Phyrexian Marauder
Ugin's Conjurant

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. Ugin's Conjurant 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 Ugin's Conjurant from your graveyard to your hand.
  3. Cast Ugin's Conjurant for 1.
  4. Sacrifice Ugin's Conjurant 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
1.62% of 1048 decks 17 decks
High Synergy Cards
Shifting Wall
94% of 17 decks +94% synergy
Endless One
94% of 17 decks +94% synergy
Stonecoil Serpent
94% of 17 decks +94% synergy
Hangarback Walker
94% of 17 decks +93% synergy
Viscera Seer
94% of 17 decks +77% synergy
Pawn of Ulamog
76% of 17 decks +75% synergy
Cruel Celebrant
82% of 17 decks +74% synergy
Zulaport Cutthroat
82% of 17 decks +69% synergy
Walking Ballista
71% of 17 decks +67% synergy
Pitiless Plunderer
65% of 17 decks +60% synergy
Top Cards
Blood Artist
71% of 17 decks +58% synergy
Farseek
71% of 17 decks +27% synergy
Elas il-Kor, Sadistic Pilgrim
69% of 13 decks +53% synergy
Swords to Plowshares
65% of 17 decks +2% synergy
Sifter of Skulls
59% of 17 decks +58% synergy
Corpse Knight
59% of 17 decks +53% synergy
Altar of Dementia
59% of 17 decks +52% synergy
Phyrexian Altar
59% of 17 decks +51% synergy
Blasting Station
53% of 17 decks +52% synergy
Carrion Feeder
53% of 17 decks +42% synergy
Creatures
Bartolomé del Presidio
60% of 5 decks +51% synergy
Cryptic Trilobite
47% of 17 decks +45% synergy
Woe Strider
47% of 17 decks +43% synergy
Saffi Eriksdotter
47% of 17 decks +41% synergy
Grim Haruspex
47% of 17 decks +41% synergy
Sakura-Tribe Elder
47% of 17 decks +23% synergy
Syr Konrad, the Grim
41% of 17 decks +34% synergy
Avacyn's Pilgrim
41% of 17 decks +20% synergy
Haywire Mite
36% of 11 decks +33% synergy
Tormod, the Desecrator
35% of 17 decks +34% synergy
Beast Whisperer
35% of 17 decks +27% synergy
Llanowar Elves
35% of 17 decks +19% synergy
Midnight Reaper
29% of 17 decks +26% synergy
Spore Frog
29% of 17 decks +24% synergy
Faeburrow Elder
29% of 17 decks +21% synergy
Eternal Witness
29% of 17 decks +3% synergy
Doomed Dissenter
24% of 17 decks +23% synergy
Ornithopter
24% of 17 decks +23% synergy
Willow Geist
24% of 17 decks +23% synergy
Foundation Breaker
24% of 17 decks +22% synergy
Fauna Shaman
24% of 17 decks +18% synergy
Elvish Mystic
24% of 17 decks +11% synergy
Elves of Deep Shadow
24% of 17 decks +9% synergy
Birds of Paradise
24% of 17 decks -13% synergy
Memnite
18% of 17 decks +18% synergy
Myr Retriever
18% of 17 decks +18% synergy
Renegade Rallier
18% of 17 decks +16% synergy
Poison-Tip Archer
18% of 17 decks +15% synergy
Fertilid
18% of 17 decks +14% synergy
Teysa Karlov
18% of 17 decks +14% synergy
Knight of Autumn
18% of 17 decks +13% synergy
Heliod, Sun-Crowned
18% of 17 decks +13% synergy
Protean Hulk
18% of 17 decks +13% synergy
Old Stickfingers
18% of 17 decks +12% synergy
Opposition Agent
18% of 17 decks +11% synergy
Dauthi Voidwalker
18% of 17 decks +10% synergy
Grand Abolisher
18% of 17 decks +10% synergy
Drannith Magistrate
18% of 17 decks +10% synergy
Reclamation Sage
18% of 17 decks +10% synergy
Esper Sentinel
18% of 17 decks +2% synergy
Instants
Vampiric Tutor
47% of 17 decks +33% synergy
Path to Exile
47% of 17 decks +3% synergy
Enlightened Tutor
41% of 17 decks +28% synergy
Eladamri's Call
35% of 17 decks +25% synergy
Assassin's Trophy
35% of 17 decks +4% synergy
Mythos of Nethroi
29% of 17 decks +20% synergy
Despark
29% of 17 decks +19% synergy
Heroic Intervention
29% of 17 decks +5% synergy
Beast Within
29% of 17 decks -0% synergy
Entomb
24% of 17 decks +13% synergy
Worldly Tutor
24% of 17 decks +11% synergy
Anguished Unmaking
24% of 17 decks -6% synergy
Return to Nature
18% of 17 decks +16% synergy
Teferi's Protection
18% of 17 decks +2% synergy
Sorceries
Demonic Tutor
53% of 17 decks +35% synergy
Rampant Growth
47% of 17 decks +20% synergy
Three Visits
41% of 17 decks +19% synergy
Nature's Lore
41% of 17 decks +10% synergy
Cultivate
41% of 17 decks -5% synergy
Diabolic Intent
35% of 17 decks +27% synergy
Sign in Blood
29% of 17 decks +26% synergy
Eerie Ultimatum
29% of 17 decks +7% synergy
Kodama's Reach
29% of 17 decks +3% synergy
Damn
24% of 17 decks +7% synergy
Jarad's Orders
18% of 17 decks +15% synergy
Damnation
18% of 17 decks +14% synergy
Buried Alive
18% of 17 decks +9% synergy
Bala Ged Recovery
18% of 17 decks +9% synergy
Night's Whisper
18% of 17 decks +3% synergy
Utility Artifacts
Desecrated Tomb
35% of 17 decks +35% synergy
Skullclamp
29% of 17 decks +14% synergy
Birthing Pod
18% of 17 decks +13% synergy
Enchantments
Parapet
41% of 17 decks +41% synergy
Lumithread Field
35% of 17 decks +35% synergy
Bastion of Remembrance
29% of 17 decks +25% synergy
Phyrexian Arena
29% of 17 decks +15% synergy
Fortifying Provisions
24% of 17 decks +23% synergy
Glorious Anthem
24% of 17 decks +23% synergy
Blight Mound
24% of 17 decks +23% synergy
Abzan Ascendancy
24% of 17 decks +18% synergy
Enduring Renewal
18% of 17 decks +18% synergy
The Meathook Massacre
18% of 17 decks +13% synergy
Sylvan Library
18% of 17 decks +2% synergy
Smothering Tithe
18% of 17 decks +1% synergy
Utility Lands
Takenuma, Abandoned Mire
38% of 16 decks +24% synergy
Boseiju, Who Endures
38% of 16 decks +15% synergy
Bojuka Bog
35% of 17 decks +5% synergy
Yavimaya, Cradle of Growth
29% of 17 decks +3% synergy
Ancient Tomb
24% of 17 decks +15% synergy
Phyrexian Tower
24% of 17 decks +13% synergy
Urborg, Tomb of Yawgmoth
24% of 17 decks +2% synergy
Mana Artifacts
Arcane Signet
88% of 17 decks +23% synergy
Sol Ring
88% of 17 decks +8% synergy
Jeweled Lotus
29% of 17 decks +25% synergy
Talisman of Hierarchy
29% of 17 decks +23% synergy
Mana Crypt
29% of 17 decks +21% synergy
Talisman of Unity
24% of 17 decks +18% synergy
Talisman of Resilience
24% of 17 decks +16% synergy
Fellwar Stone
18% of 17 decks +8% synergy
Golgari Signet
18% of 17 decks +6% synergy
Commander's Sphere
18% of 17 decks +3% synergy
Lands
Command Tower
82% of 17 decks -8% synergy
Vault of Champions
65% of 17 decks +35% synergy
Undergrowth Stadium
65% of 17 decks +32% synergy
Overgrown Tomb
65% of 17 decks +16% synergy
Indatha Triome
59% of 17 decks +15% synergy
Temple Garden
59% of 17 decks +11% synergy
Sunpetal Grove
53% of 17 decks +19% synergy
Woodland Cemetery
53% of 17 decks +16% synergy
Godless Shrine
53% of 17 decks +6% synergy
Exotic Orchard
53% of 17 decks -2% synergy
Overgrown Farmland
47% of 17 decks +30% synergy
Caves of Koilos
47% of 17 decks +20% synergy
Marsh Flats
47% of 17 decks +12% synergy
Llanowar Wastes
41% of 17 decks +14% synergy
Isolated Chapel
41% of 17 decks +7% synergy
Verdant Catacombs
41% of 17 decks +6% synergy
Sandsteppe Citadel
41% of 17 decks -10% synergy
Shattered Sanctum
35% of 17 decks +23% synergy
Bountiful Promenade
35% of 17 decks +4% synergy
Windswept Heath
35% of 17 decks +2% synergy
Canopy Vista
35% of 17 decks -9% synergy
Deathcap Glade
29% of 17 decks +14% synergy
Nurturing Peatland
24% of 17 decks +17% synergy
Horizon Canopy
24% of 17 decks +16% synergy
Fabled Passage
24% of 17 decks +10% synergy
Terramorphic Expanse
24% of 17 decks +7% synergy
Evolving Wilds
24% of 17 decks -4% synergy
Prismatic Vista
18% of 17 decks +12% synergy
Darkbore Pathway
18% of 17 decks +9% synergy
Mana Confluence
18% of 17 decks +9% synergy
Branchloft Pathway
18% of 17 decks +9% synergy
City of Brass
18% of 17 decks +8% synergy
Tainted Field
18% of 17 decks +7% synergy
Tainted Wood
18% of 17 decks +6% synergy
Scrubland
18% of 17 decks +5% synergy
Savannah
18% of 17 decks +5% synergy
Bayou
18% of 17 decks +5% synergy
Temple of Malady
18% of 17 decks +0% synergy
Murmuring Bosk
18% of 17 decks -3% synergy
Path of Ancestry
18% of 17 decks -8% synergy