Mairsil, the Pretender + Cinderhaze Wretch + Endling + Phyrexian Altar

Mairsil, the Pretender
Cinderhaze Wretch
Endling
Phyrexian Altar

Requires
Mairsil, the Pretender must be on the battlefield. Cinderhaze Wretch must be in exile. Endling must be in exile. Phyrexian Altar must be on the battlefield, or in exile. Cinderhaze Wretch and Endling each have a cage counter on them. Phyrexian Altar on the battlefield or in exile with a cage counter on it. Mana needed:
Steps
  1. Activate Mairsil using Endling's third ability by paying , gaining Mairsil undying.
  2. Activate Mairsil using Phyrexian Altar's ability by sacrificing Mairsil, adding .
  3. Mairsil's undying ability triggers, returning it to the battlefield.
  4. Activate Mairsil using Cinderhaze Wretch's ability, putting -1/-1 on itself.
  5. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Mairsil, the Pretender
0.89% of 1576 decks 14 decks
High Synergy Cards
Aetherling
100% of 14 decks +99% synergy
Morphling
86% of 14 decks +85% synergy
Staff of Domination
86% of 14 decks +85% synergy
Nevinyrral's Disk
86% of 14 decks +84% synergy
Unmarked Grave
86% of 14 decks +84% synergy
Entomb
86% of 14 decks +79% synergy
Blood Vassal
79% of 14 decks +78% synergy
Horseshoe Crab
79% of 14 decks +78% synergy
Quicksilver Elemental
79% of 14 decks +78% synergy
Walking Ballista
79% of 14 decks +78% synergy
Top Cards
Anger
86% of 14 decks +76% synergy
Arcanis the Omnipotent
79% of 14 decks +77% synergy
Gilded Lotus
79% of 14 decks +74% synergy
Basalt Monolith
71% of 14 decks +69% synergy
Buried Alive
71% of 14 decks +68% synergy
Pili-Pala
64% of 14 decks +64% synergy
Torchling
64% of 14 decks +64% synergy
Gamble
64% of 14 decks +55% synergy
Sage of Hours
57% of 14 decks +57% synergy
Anthroplasm
57% of 14 decks +57% synergy
Creatures
Hateflayer
57% of 14 decks +57% synergy
Cavern Harpy
57% of 14 decks +57% synergy
Tree of Perdition
57% of 14 decks +57% synergy
Triskelion
50% of 14 decks +50% synergy
Asmodeus the Archfiend
50% of 14 decks +49% synergy
Oriq Loremage
50% of 14 decks +49% synergy
Mirror-Mad Phantasm
43% of 14 decks +43% synergy
Blood Pet
43% of 14 decks +43% synergy
Pack Rat
43% of 14 decks +41% synergy
Thassa, Deep-Dwelling
43% of 14 decks +39% synergy
Spark Double
43% of 14 decks +34% synergy
Crystalline Crawler
36% of 14 decks +36% synergy
Spikeshot Elder
36% of 14 decks +36% synergy
Ovinomancer
36% of 14 decks +35% synergy
Cephalid Inkshrouder
36% of 14 decks +35% synergy
Displacer Kitten
36% of 14 decks +32% synergy
Omen Hawker
33% of 9 decks +33% synergy
Argivian Avenger
30% of 10 decks +30% synergy
Necrotic Ooze
29% of 14 decks +28% synergy
Deathbringer Thoctar
29% of 14 decks +28% synergy
Doom Whisperer
29% of 14 decks +27% synergy
Jace's Archivist
29% of 14 decks +22% synergy
Thassa's Oracle
29% of 14 decks +20% synergy
Phyrexian Devourer
21% of 14 decks +21% synergy
Farmstead Gleaner
21% of 14 decks +21% synergy
Grand Architect
21% of 14 decks +21% synergy
Skyship Stalker
21% of 14 decks +21% synergy
Blighted Bat
21% of 14 decks +21% synergy
Argent Sphinx
21% of 14 decks +21% synergy
Memnarch
21% of 14 decks +21% synergy
Eater of the Dead
21% of 14 decks +21% synergy
Avatar of Woe
21% of 14 decks +21% synergy
Duskmantle Guildmage
21% of 14 decks +21% synergy
Geth, Lord of the Vault
21% of 14 decks +21% synergy
Deadeye Navigator
21% of 14 decks +20% synergy
Laboratory Maniac
21% of 14 decks +19% synergy
Instants
Vampiric Tutor
64% of 14 decks +46% synergy
Cyclonic Rift
50% of 14 decks +22% synergy
Mana Drain
43% of 14 decks +27% synergy
Lim-Dûl's Vault
36% of 14 decks +33% synergy
Ghostly Flicker
36% of 14 decks +29% synergy
Arcane Denial
36% of 14 decks +8% synergy
Counterspell
36% of 14 decks -9% synergy
Intuition
29% of 14 decks +26% synergy
Essence Flux
29% of 14 decks +25% synergy
Frantic Search
29% of 14 decks +14% synergy
Mystical Tutor
29% of 14 decks +13% synergy
An Offer You Can't Refuse
21% of 14 decks -0% synergy
Sorceries
Demonic Tutor
71% of 14 decks +47% synergy
Windfall
50% of 14 decks +26% synergy
Reckless Handling
43% of 7 decks +42% synergy
Grim Tutor
36% of 14 decks +31% synergy
Faithless Looting
36% of 14 decks +16% synergy
Imperial Seal
29% of 14 decks +22% synergy
Toxic Deluge
29% of 14 decks +9% synergy
Consuming Tide
21% of 14 decks +21% synergy
Whispering Madness
21% of 14 decks +14% synergy
Wheel of Fortune
21% of 14 decks +12% synergy
Reanimate
21% of 14 decks +1% synergy
Feed the Swarm
21% of 14 decks -14% synergy
Blasphemous Act
21% of 14 decks -28% synergy
Utility Artifacts
Cauldron of Souls
50% of 14 decks +50% synergy
Thousand-Year Elixir
50% of 14 decks +49% synergy
Pendant of Prosperity
43% of 14 decks +42% synergy
Conjurer's Closet
43% of 14 decks +39% synergy
Lightning Greaves
43% of 14 decks +13% synergy
Illusionist's Bracers
36% of 14 decks +35% synergy
Mirage Mirror
36% of 14 decks +34% synergy
Swiftfoot Boots
36% of 14 decks +10% synergy
The One Ring
30% of 10 decks +15% synergy
Helm of the Host
29% of 14 decks +25% synergy
Mindcrank
21% of 14 decks +19% synergy
Sensei's Divining Top
21% of 14 decks +17% synergy
Enchantments
Candlekeep Sage
21% of 14 decks +21% synergy
Training Grounds
21% of 14 decks +21% synergy
Propaganda
21% of 14 decks +9% synergy
Rhystic Study
21% of 14 decks -6% synergy
Planeswalkers
Geyadrone Dihada
21% of 14 decks +17% synergy
Utility Lands
Riptide Laboratory
57% of 14 decks +54% synergy
Command Beacon
57% of 14 decks +52% synergy
Otawara, Soaring City
50% of 14 decks +35% synergy
Ancient Tomb
43% of 14 decks +29% synergy
Reliquary Tower
36% of 14 decks +1% synergy
Sanctum of Eternity
29% of 14 decks +28% synergy
Minamo, School at Water's Edge
29% of 14 decks +26% synergy
Temple of the False God
29% of 14 decks +19% synergy
Urborg, Tomb of Yawgmoth
29% of 14 decks +13% synergy
Mana Artifacts
Sol Ring
71% of 14 decks -19% synergy
Arcane Signet
64% of 14 decks -24% synergy
Chromatic Orrery
36% of 14 decks +35% synergy
Izzet Signet
29% of 14 decks -12% synergy
Talisman of Indulgence
29% of 14 decks -12% synergy
Talisman of Creativity
29% of 14 decks -16% synergy
Talisman of Dominance
29% of 14 decks -18% synergy
Prismatic Geoscope
21% of 14 decks +21% synergy
Coveted Jewel
21% of 14 decks +20% synergy
Mox Amber
21% of 14 decks +17% synergy
Thran Dynamo
21% of 14 decks +15% synergy
Mana Crypt
21% of 14 decks +11% synergy
Fellwar Stone
21% of 14 decks -14% synergy
Rakdos Signet
21% of 14 decks -21% synergy
Dimir Signet
21% of 14 decks -23% synergy
Lands
Scalding Tarn
93% of 14 decks +62% synergy
Xander's Lounge
93% of 14 decks +49% synergy
Polluted Delta
86% of 14 decks +55% synergy
Bloodstained Mire
86% of 14 decks +55% synergy
Blood Crypt
86% of 14 decks +42% synergy
Steam Vents
86% of 14 decks +42% synergy
Watery Grave
86% of 14 decks +41% synergy
Command Tower
86% of 14 decks -6% synergy
Training Center
64% of 14 decks +29% synergy
Luxury Suite
57% of 14 decks +23% synergy
Morphic Pool
57% of 14 decks +23% synergy
Mana Confluence
50% of 14 decks +38% synergy
City of Brass
50% of 14 decks +36% synergy
Volcanic Island
43% of 14 decks +29% synergy
Underground Sea
43% of 14 decks +29% synergy
Badlands
43% of 14 decks +29% synergy
Haunted Ridge
43% of 14 decks +23% synergy
Stormcarved Coast
43% of 14 decks +21% synergy
Exotic Orchard
43% of 14 decks -14% synergy
Plaza of Heroes
38% of 13 decks +36% synergy
Flooded Strand
36% of 14 decks +26% synergy
Misty Rainforest
36% of 14 decks +26% synergy
Marsh Flats
36% of 14 decks +26% synergy
Shipwreck Marsh
36% of 14 decks +11% synergy
Verdant Catacombs
29% of 14 decks +19% synergy
Underground River
29% of 14 decks +4% synergy
Shivan Reef
29% of 14 decks +1% synergy
Drowned Catacomb
29% of 14 decks -11% synergy
Dragonskull Summit
29% of 14 decks -13% synergy
Sulfur Falls
29% of 14 decks -14% synergy
Spirebluff Canal
21% of 14 decks +19% synergy
Blackcleave Cliffs
21% of 14 decks +17% synergy
Darkslick Shores
21% of 14 decks +17% synergy
Cavern of Souls
21% of 14 decks +15% synergy
Wooded Foothills
21% of 14 decks +13% synergy
Fabled Passage
21% of 14 decks +13% synergy
Reflecting Pool
21% of 14 decks +12% synergy
Arid Mesa
21% of 14 decks +12% synergy
Temple of Malice
21% of 14 decks +7% synergy
Temple of Deceit
21% of 14 decks +6% synergy
Temple of Epiphany
21% of 14 decks +4% synergy
Path of Ancestry
21% of 14 decks -11% synergy
Crumbling Necropolis
21% of 14 decks -37% synergy