Morophon, the Boundless + Saffi Eriksdotter + Eternal Witness + Ashnod's Altar

Morophon, the Boundless
Saffi Eriksdotter
Eternal Witness
Ashnod's Altar

Requires
Morophon, the Boundless must be on the battlefield. Saffi Eriksdotter must be on the battlefield. Eternal Witness must be on the battlefield. Ashnod's Altar must be on the battlefield. "Human" or "Scout" chosen with Morophon..
Steps
  1. Activate Saffi by sacrificing it, targeting Eternal Witness.
  2. Activate Ashnod's Altar by sacrificing Eternal Witness, adding cc.
  3. When Eternal Witness dies, Saffi triggers, returning it from your graveyard to the battlefield.
  4. When Eternal Witness enters the battlefield, it triggers, returning Saffi from your graveyard to your hand.
  5. Cast Saffi by paying 0 due to Morophon.
  6. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite storm count.

Top Commanders (1)
Morophon, the Boundless
0.02% of 9371 decks 2 decks
Creatures (50)
Extraction Specialist
100% of 1 decks +100% synergy
Cathar Commando
100% of 1 decks +100% synergy
Blade Historian
100% of 1 decks +100% synergy
Leinore, Autumn Sovereign
100% of 1 decks +100% synergy
Jirina Kudro
100% of 1 decks +100% synergy
Zulaport Cutthroat
100% of 2 decks +99% synergy
Species Specialist
100% of 1 decks +99% synergy
Kyler, Sigardian Emissary
100% of 1 decks +99% synergy
Torens, Fist of the Angels
100% of 1 decks +99% synergy
General Kudro of Drannith
100% of 1 decks +99% synergy
Heronblade Elite
100% of 1 decks +99% synergy
Maja, Bretagard Protector
100% of 1 decks +99% synergy
Tymna the Weaver
100% of 2 decks +99% synergy
General's Enforcer
100% of 1 decks +99% synergy
Mother of Runes
100% of 2 decks +99% synergy
Katilda, Dawnhart Prime
100% of 1 decks +97% synergy
Professional Face-Breaker
100% of 1 decks +97% synergy
Lavinia, Azorius Renegade
100% of 2 decks +97% synergy
Chulane, Teller of Tales
100% of 1 decks +96% synergy
Avacyn's Pilgrim
100% of 2 decks +96% synergy
Esper Sentinel
100% of 1 decks +91% synergy
Realmwalker
100% of 1 decks +91% synergy
Noble Hierarch
100% of 2 decks +89% synergy
Birds of Paradise
100% of 2 decks +75% synergy
Militia Bugler
50% of 2 decks +50% synergy
Ranger of Eos
50% of 2 decks +50% synergy
Cartel Aristocrat
50% of 2 decks +50% synergy
Harsh Mentor
50% of 2 decks +50% synergy
Burning-Tree Emissary
50% of 2 decks +50% synergy
Xathrid Necromancer
50% of 2 decks +50% synergy
Renegade Rallier
50% of 2 decks +50% synergy
Grim Haruspex
50% of 2 decks +50% synergy
Underworld Coinsmith
50% of 2 decks +50% synergy
Angel of Glory's Rise
50% of 2 decks +50% synergy
Thalia's Lieutenant
50% of 2 decks +50% synergy
Wild Cantor
50% of 2 decks +50% synergy
Breya, Etherium Shaper
50% of 2 decks +50% synergy
Soul Warden
50% of 2 decks +50% synergy
Somberwald Sage
50% of 2 decks +50% synergy
Mentor of the Meek
50% of 2 decks +50% synergy
Recruiter of the Guard
50% of 2 decks +50% synergy
Sigarda, Heron's Grace
50% of 2 decks +50% synergy
Trophy Mage
50% of 2 decks +50% synergy
Shardless Agent
50% of 2 decks +50% synergy
Yisan, the Wanderer Bard
50% of 2 decks +49% synergy
Viscera Seer
50% of 2 decks +49% synergy
Dark Confidant
50% of 2 decks +49% synergy
Anafenza, the Foremost
50% of 2 decks +49% synergy
Academy Rector
50% of 2 decks +49% synergy
Saskia the Unyielding
50% of 2 decks +49% synergy
Instants (11)
Dire Tactics
100% of 1 decks +99% synergy
Rite of Harmony
100% of 1 decks +99% synergy
Guttural Response
50% of 2 decks +50% synergy
Force of Vigor
50% of 2 decks +49% synergy
Unbreakable Formation
50% of 2 decks +48% synergy
Eladamri's Call
50% of 2 decks +41% synergy
Worldly Tutor
50% of 2 decks +38% synergy
Enlightened Tutor
50% of 2 decks +34% synergy
Heroic Intervention
50% of 2 decks +29% synergy
Path to Exile
50% of 2 decks +27% synergy
Swords to Plowshares
50% of 2 decks +9% synergy
Sorceries (11)
Bala Ged Recovery
100% of 1 decks +97% synergy
Damn
100% of 1 decks +96% synergy
Mass Appeal
50% of 2 decks +49% synergy
Living Death
50% of 2 decks +48% synergy
Time of Need
50% of 2 decks +48% synergy
Reanimate
50% of 2 decks +47% synergy
Diabolic Intent
50% of 2 decks +46% synergy
Neoform
50% of 2 decks +46% synergy
Blasphemous Act
50% of 2 decks +40% synergy
Three Visits
50% of 2 decks +24% synergy
Nature's Lore
50% of 2 decks +21% synergy
Utility Artifacts (9)
Skullclamp
100% of 2 decks +96% synergy
The Great Henge
100% of 1 decks +93% synergy
Urza's Incubator
100% of 2 decks +90% synergy
Blasting Station
50% of 2 decks +50% synergy
Phyrexian Altar
50% of 2 decks +49% synergy
Fist of Suns
50% of 2 decks +42% synergy
Swiftfoot Boots
50% of 2 decks +36% synergy
Herald's Horn
50% of 2 decks +35% synergy
Lightning Greaves
50% of 2 decks +32% synergy
Enchantments (10)
Guardian Project
100% of 2 decks +95% synergy
Enduring Renewal
50% of 2 decks +50% synergy
Aluren
50% of 2 decks +50% synergy
Oblivion Ring
50% of 2 decks +50% synergy
Goblin Bombardment
50% of 2 decks +49% synergy
Animate Dead
50% of 2 decks +48% synergy
Aura Shards
50% of 2 decks +47% synergy
Sterling Grove
50% of 2 decks +40% synergy
Kindred Discovery
50% of 2 decks +39% synergy
Rhythm of the Wild
50% of 2 decks +38% synergy
Utility Lands (7)
Yavimaya, Cradle of Growth
100% of 1 decks +88% synergy
Boseiju, Who Endures
100% of 1 decks +88% synergy
Westvale Abbey
50% of 2 decks +49% synergy
Gavony Township
50% of 2 decks +49% synergy
Hall of Heliod's Generosity
50% of 2 decks +44% synergy
Urborg, Tomb of Yawgmoth
50% of 2 decks +43% synergy
Ancient Tomb
50% of 2 decks +42% synergy
Mana Artifacts (9)
Talisman of Hierarchy
100% of 1 decks +98% synergy
Talisman of Conviction
100% of 1 decks +98% synergy
Arcane Signet
100% of 1 decks +28% synergy
Sol Ring
100% of 2 decks +24% synergy
Talisman of Unity
50% of 2 decks +48% synergy
Pillar of Origins
50% of 2 decks +47% synergy
Mana Crypt
50% of 2 decks +37% synergy
Fellwar Stone
50% of 2 decks +18% synergy
Chromatic Lantern
50% of 2 decks -2% synergy
Lands (50)
Polluted Delta
100% of 2 decks +77% synergy
Ziatora's Proving Ground
100% of 1 decks +74% synergy
Sacred Foundry
100% of 2 decks +74% synergy
Zagoth Triome
100% of 1 decks +74% synergy
Godless Shrine
100% of 2 decks +73% synergy
Indatha Triome
100% of 1 decks +73% synergy
Jetmir's Garden
100% of 1 decks +73% synergy
Spara's Headquarters
100% of 1 decks +72% synergy
Ketria Triome
100% of 1 decks +72% synergy
Temple Garden
100% of 2 decks +67% synergy
Command Tower
100% of 2 decks +12% synergy
Silent Clearing
50% of 2 decks +50% synergy
Sunbaked Canyon
50% of 2 decks +50% synergy
Nurturing Peatland
50% of 2 decks +50% synergy
Twilight Mire
50% of 2 decks +49% synergy
Fetid Heath
50% of 2 decks +49% synergy
Adarkar Wastes
50% of 2 decks +47% synergy
Woodland Cemetery
50% of 2 decks +47% synergy
Sunpetal Grove
50% of 2 decks +47% synergy
Brushland
50% of 2 decks +47% synergy
Prismatic Vista
50% of 2 decks +47% synergy
Caves of Koilos
50% of 2 decks +45% synergy
Ash Barrens
50% of 2 decks +45% synergy
Sea of Clouds
50% of 2 decks +43% synergy
Bountiful Promenade
50% of 2 decks +42% synergy
Plateau
50% of 2 decks +38% synergy
Badlands
50% of 2 decks +38% synergy
Scrubland
50% of 2 decks +38% synergy
Volcanic Island
50% of 2 decks +38% synergy
Underground Sea
50% of 2 decks +38% synergy
Tundra
50% of 2 decks +37% synergy
Cavern of Souls
50% of 2 decks +37% synergy
Savannah
50% of 2 decks +37% synergy
Bayou
50% of 2 decks +37% synergy
Taiga
50% of 2 decks +37% synergy
Tropical Island
50% of 2 decks +37% synergy
Unclaimed Territory
50% of 2 decks +36% synergy
City of Brass
50% of 2 decks +28% synergy
Bloodstained Mire
50% of 2 decks +28% synergy
Evolving Wilds
50% of 2 decks +26% synergy
Flooded Strand
50% of 2 decks +26% synergy
Wooded Foothills
50% of 2 decks +25% synergy
Scalding Tarn
50% of 2 decks +24% synergy
Windswept Heath
50% of 2 decks +23% synergy
Watery Grave
50% of 2 decks +23% synergy
Arid Mesa
50% of 2 decks +22% synergy
Marsh Flats
50% of 2 decks +22% synergy
Verdant Catacombs
50% of 2 decks +21% synergy
Hallowed Fountain
50% of 2 decks +20% synergy
Misty Rainforest
50% of 2 decks +20% synergy