Mairsil, the Pretender + Blood Vassal + Endling + Cryptic Trilobite

Mairsil, the Pretender
Blood Vassal
Endling
Cryptic Trilobite

Requires
Mairsil, the Pretender must be on the battlefield. Blood Vassal must be in exile. Endling must be in exile. Cryptic Trilobite must be in exile. Mairsil does not have a +1/+1 counter on it. Mana needed:
Steps
  1. Activate Mairsil using Endling's third ability by paying , giving Mairsil undying until end of turn.
  2. Activate Mairsil using Blood Vassal's ability by sacrificing it, adding .
  3. Mairsil dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  4. Activate Mairsil using Cryptic Trilobite's first ability by removing a +1/+1 counter from it, adding that can only be spent to activate abilities.
  5. Repeat.
Results
Infinite black mana. Infinite colorless mana that can only be spent to activate abilities. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Mairsil, the Pretender
0.13% of 1576 decks 2 decks
Creatures
Sage of Hours
100% of 2 decks +100% synergy
Anthroplasm
100% of 2 decks +100% synergy
Triskelion
100% of 2 decks +100% synergy
Horseshoe Crab
100% of 2 decks +100% synergy
Hateflayer
100% of 2 decks +100% synergy
Quicksilver Elemental
100% of 2 decks +100% synergy
Tree of Perdition
100% of 2 decks +99% synergy
Asmodeus the Archfiend
100% of 2 decks +99% synergy
Aetherling
100% of 2 decks +99% synergy
Displacer Kitten
100% of 1 decks +96% synergy
Anger
100% of 2 decks +91% synergy
Lunar Avenger
50% of 2 decks +50% synergy
Triskelavus
50% of 2 decks +50% synergy
Overeager Apprentice
50% of 2 decks +50% synergy
Monoskelion
50% of 2 decks +50% synergy
Workhorse
50% of 2 decks +50% synergy
Carnifex Demon
50% of 2 decks +50% synergy
Cinderhaze Wretch
50% of 2 decks +50% synergy
Grinning Ignus
50% of 2 decks +50% synergy
Crystalline Crawler
50% of 2 decks +50% synergy
Spikeshot Elder
50% of 2 decks +50% synergy
Mirror-Mad Phantasm
50% of 2 decks +50% synergy
Blood Pet
50% of 2 decks +50% synergy
Morphling
50% of 2 decks +50% synergy
Pili-Pala
50% of 2 decks +50% synergy
Deathbringer Thoctar
50% of 2 decks +50% synergy
Cavern Harpy
50% of 2 decks +50% synergy
Torchling
50% of 2 decks +49% synergy
Walking Ballista
50% of 2 decks +49% synergy
Oriq Loremage
50% of 2 decks +49% synergy
Arcanis the Omnipotent
50% of 2 decks +48% synergy
Urabrask the Hidden
50% of 2 decks +48% synergy
Deadeye Navigator
50% of 2 decks +48% synergy
Pack Rat
50% of 2 decks +48% synergy
Imperial Recruiter
50% of 2 decks +47% synergy
Thassa, Deep-Dwelling
50% of 2 decks +47% synergy
Varragoth, Bloodsky Sire
50% of 2 decks +46% synergy
Jace's Archivist
50% of 2 decks +43% synergy
Thassa's Oracle
50% of 2 decks +42% synergy
Notion Thief
50% of 2 decks +41% synergy
Instants
Ghostly Flicker
100% of 2 decks +93% synergy
Counterspell
100% of 2 decks +55% synergy
Forbid
50% of 2 decks +50% synergy
Tolarian Winds
50% of 2 decks +50% synergy
Remand
50% of 2 decks +50% synergy
Saw It Coming
50% of 2 decks +49% synergy
Forbidden Alchemy
50% of 2 decks +48% synergy
Displace
50% of 2 decks +47% synergy
Opt
50% of 2 decks +45% synergy
Red Elemental Blast
50% of 2 decks +45% synergy
Reality Shift
50% of 2 decks +43% synergy
Thrill of Possibility
50% of 2 decks +42% synergy
Frantic Search
50% of 2 decks +36% synergy
Mana Drain
50% of 2 decks +34% synergy
Negate
50% of 2 decks +26% synergy
Sorceries
Diabolic Tutor
100% of 2 decks +94% synergy
By Force
50% of 2 decks +50% synergy
Compulsive Research
50% of 2 decks +49% synergy
Strategic Planning
50% of 2 decks +49% synergy
Portent
50% of 2 decks +49% synergy
Tormenting Voice
50% of 2 decks +49% synergy
Cathartic Reunion
50% of 2 decks +48% synergy
Buried Alive
50% of 2 decks +46% synergy
Treasure Cruise
50% of 2 decks +46% synergy
Grim Tutor
50% of 2 decks +45% synergy
Winds of Change
50% of 2 decks +45% synergy
Gitaxian Probe
50% of 2 decks +44% synergy
Whispering Madness
50% of 2 decks +43% synergy
Gamble
50% of 2 decks +40% synergy
Faithless Looting
50% of 2 decks +30% synergy
Demonic Tutor
50% of 2 decks +26% synergy
Windfall
50% of 2 decks +26% synergy
Utility Artifacts
Staff of Domination
100% of 2 decks +99% synergy
Thousand-Year Elixir
100% of 2 decks +99% synergy
Nevinyrral's Disk
100% of 2 decks +99% synergy
Conjurer's Closet
100% of 2 decks +97% synergy
Magistrate's Scepter
50% of 2 decks +50% synergy
Ring of Three Wishes
50% of 2 decks +50% synergy
Heartstone
50% of 2 decks +50% synergy
Cauldron of Souls
50% of 2 decks +50% synergy
Pendant of Prosperity
50% of 2 decks +49% synergy
Phyrexian Altar
50% of 2 decks +46% synergy
Swiftfoot Boots
50% of 2 decks +24% synergy
Enchantments
Mass Hysteria
50% of 2 decks +50% synergy
Freed from the Real
50% of 2 decks +49% synergy
Training Grounds
50% of 2 decks +49% synergy
Fervor
50% of 2 decks +49% synergy
Sneak Attack
50% of 2 decks +44% synergy
Mystic Remora
50% of 2 decks +34% synergy
Rhystic Study
50% of 2 decks +23% synergy
Planeswalkers
Jace, Wielder of Mysteries
50% of 2 decks +49% synergy
Ashiok, Dream Render
50% of 2 decks +47% synergy
Utility Lands
Mana Artifacts
Gilded Lotus
100% of 2 decks +96% synergy
Ventifact Bottle
50% of 2 decks +50% synergy
Nyx Lotus
50% of 2 decks +50% synergy
Basalt Monolith
50% of 2 decks +47% synergy
Lotus Petal
50% of 2 decks +41% synergy
Commander's Sphere
50% of 2 decks +24% synergy
Fellwar Stone
50% of 2 decks +15% synergy
Izzet Signet
50% of 2 decks +10% synergy
Dimir Signet
50% of 2 decks +6% synergy
Talisman of Creativity
50% of 2 decks +5% synergy
Arcane Signet
50% of 2 decks -38% synergy
Sol Ring
50% of 2 decks -41% synergy
Lands
Sulfur Vent
50% of 2 decks +50% synergy
River of Tears
50% of 2 decks +48% synergy
Tainted Isle
50% of 2 decks +46% synergy
Bloodfell Caves
50% of 2 decks +45% synergy
Ash Barrens
50% of 2 decks +45% synergy
Dismal Backwater
50% of 2 decks +43% synergy
Swiftwater Cliffs
50% of 2 decks +43% synergy
Darkwater Catacombs
50% of 2 decks +37% synergy
Myriad Landscape
50% of 2 decks +36% synergy
Izzet Boilerworks
50% of 2 decks +35% synergy
Dimir Aqueduct
50% of 2 decks +35% synergy
Terramorphic Expanse
50% of 2 decks +26% synergy
Evolving Wilds
50% of 2 decks +23% synergy
Shivan Reef
50% of 2 decks +22% synergy
Smoldering Marsh
50% of 2 decks +11% synergy
Sunken Hollow
50% of 2 decks +8% synergy
Exotic Orchard
50% of 2 decks -7% synergy
Crumbling Necropolis
50% of 2 decks -9% synergy
Command Tower
50% of 2 decks -42% synergy