Mairsil, the Pretender + Endling + Blood Pet + Crystalline Crawler

Mairsil, the Pretender
Endling
Blood Pet
Crystalline Crawler

Requires
Mairsil, the Pretender must be on the battlefield. Endling must be in exile. Blood Pet must be in exile. Crystalline Crawler 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 Pet'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 Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding one mana of any color.
  5. Repeat.
Results
Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Mairsil, the Pretender
2.92% of 1576 decks 46 decks
High Synergy Cards
Aetherling
98% of 46 decks +97% synergy
Quicksilver Elemental
87% of 46 decks +86% synergy
Nevinyrral's Disk
87% of 46 decks +85% synergy
Arcanis the Omnipotent
83% of 46 decks +81% synergy
Torchling
80% of 46 decks +80% synergy
Buried Alive
83% of 46 decks +79% synergy
Asmodeus the Archfiend
73% of 45 decks +73% synergy
Blood Vassal
70% of 46 decks +69% synergy
Triskelion
70% of 46 decks +69% synergy
Anger
74% of 46 decks +64% synergy
Top Cards
Gilded Lotus
83% of 46 decks +78% synergy
Faithless Looting
72% of 46 decks +52% synergy
Entomb
65% of 46 decks +59% synergy
Windfall
65% of 46 decks +41% synergy
Horseshoe Crab
63% of 46 decks +63% synergy
Staff of Domination
63% of 46 decks +62% synergy
Walking Ballista
59% of 46 decks +58% synergy
Frantic Search
59% of 46 decks +45% synergy
Morphling
54% of 46 decks +54% synergy
Pendant of Prosperity
54% of 46 decks +54% synergy
Creatures
Oriq Loremage
53% of 45 decks +52% synergy
Cavern Harpy
52% of 46 decks +52% synergy
Pili-Pala
46% of 46 decks +45% synergy
Tree of Perdition
46% of 46 decks +45% synergy
Sage of Hours
43% of 46 decks +43% synergy
Hateflayer
43% of 46 decks +43% synergy
Anthroplasm
41% of 46 decks +41% synergy
Spikeshot Elder
39% of 46 decks +39% synergy
Mirror-Mad Phantasm
39% of 46 decks +39% synergy
Shauku, Endbringer
39% of 46 decks +39% synergy
Pack Rat
39% of 46 decks +37% synergy
Jace's Archivist
39% of 46 decks +32% synergy
Cinderhaze Wretch
35% of 46 decks +35% synergy
Thassa's Oracle
31% of 45 decks +23% synergy
Ovinomancer
26% of 46 decks +26% synergy
Deathbringer Thoctar
26% of 46 decks +26% synergy
Displacer Kitten
25% of 40 decks +21% synergy
Minion of Leshrac
24% of 46 decks +24% synergy
Spark Double
24% of 46 decks +15% synergy
Thassa, Deep-Dwelling
22% of 45 decks +19% synergy
Cephalid Inkshrouder
22% of 46 decks +21% synergy
Mercurial Chemister
22% of 46 decks +21% synergy
Deadeye Navigator
22% of 46 decks +20% synergy
Arco-Flagellant
21% of 33 decks +21% synergy
Nightscape Familiar
20% of 46 decks -6% synergy
Death Cultist
17% of 46 decks +17% synergy
Soliton
17% of 46 decks +17% synergy
Avatar of Woe
17% of 46 decks +17% synergy
Goro-Goro, Disciple of Ryusei
16% of 43 decks +15% synergy
Amaranthine Wall
15% of 46 decks +15% synergy
Magus of the Bazaar
15% of 46 decks +15% synergy
Eater of the Dead
15% of 46 decks +15% synergy
Notion Thief
15% of 46 decks +6% synergy
Skyship Stalker
13% of 46 decks +13% synergy
Skirge Familiar
13% of 46 decks +13% synergy
Omen Hawker
13% of 23 decks +12% synergy
Doom Whisperer
13% of 46 decks +12% synergy
Magus of the Wheel
13% of 46 decks +6% synergy
Argivian Avenger
13% of 31 decks +13% synergy
Sakashima of a Thousand Faces
11% of 45 decks +8% synergy
Solphim, Mayhem Dominus
11% of 27 decks +5% synergy
Farmstead Gleaner
11% of 46 decks +11% synergy
Grinning Ignus
11% of 46 decks +11% synergy
Argent Sphinx
11% of 46 decks +11% synergy
Necrotic Ooze
11% of 46 decks +11% synergy
Dockside Extortionist
11% of 46 decks -5% synergy
Knacksaw Clique
9% of 46 decks +9% synergy
Blighted Bat
9% of 46 decks +9% synergy
Dralnu, Lich Lord
9% of 46 decks +9% synergy
Fatestitcher
9% of 46 decks +8% synergy
Instants
Counterspell
52% of 46 decks +8% synergy
Essence Flux
50% of 46 decks +47% synergy
Ghostly Flicker
46% of 46 decks +39% synergy
Thrill of Possibility
43% of 46 decks +35% synergy
Demand Answers
40% of 10 decks +37% synergy
Planar Incision
35% of 43 decks +33% synergy
Negate
35% of 46 decks +11% synergy
Blur
32% of 40 decks +31% synergy
Fact or Fiction
30% of 46 decks +18% synergy
Cyclonic Rift
30% of 46 decks +2% synergy
Forbidden Alchemy
28% of 46 decks +26% synergy
Arcane Denial
28% of 46 decks +0% synergy
Deflecting Swat
24% of 45 decks +8% synergy
Chaos Warp
24% of 46 decks -17% synergy
Vampiric Tutor
22% of 46 decks +3% synergy
Terminate
22% of 46 decks -7% synergy
Fierce Guardianship
20% of 45 decks +1% synergy
Thought Scour
20% of 46 decks +17% synergy
Izzet Charm
20% of 46 decks +17% synergy
Teferi's Time Twist
17% of 46 decks +16% synergy
Intuition
17% of 46 decks +15% synergy
Mana Drain
17% of 46 decks +1% synergy
Swan Song
17% of 46 decks +0% synergy
Displace
15% of 46 decks +12% synergy
Evacuation
15% of 46 decks +12% synergy
Force of Will
15% of 46 decks +4% synergy
An Offer You Can't Refuse
14% of 42 decks -7% synergy
Dispel
13% of 46 decks +9% synergy
Reality Shift
13% of 46 decks +6% synergy
Rakdos Charm
13% of 46 decks -2% synergy
Dark Ritual
13% of 46 decks -16% synergy
Hostile Negotiations
13% of 31 decks +12% synergy
Consider
12% of 43 decks +6% synergy
Malakir Rebirth
11% of 45 decks +5% synergy
Opt
11% of 46 decks +6% synergy
Pact of Negation
11% of 46 decks +2% synergy
Maestros Charm
10% of 42 decks +4% synergy
Infernal Grasp
9% of 43 decks +3% synergy
Thirst for Knowledge
9% of 46 decks +6% synergy
Flusterstorm
9% of 46 decks +2% synergy
Demonic Consultation
9% of 46 decks +1% synergy
Force of Negation
9% of 46 decks -0% synergy
Mystical Tutor
9% of 46 decks -7% synergy
Brainstorm
9% of 46 decks -11% synergy
Bedevil
9% of 46 decks -13% synergy
Thirst for Discovery
7% of 43 decks +6% synergy
Deadly Rollick
7% of 45 decks -6% synergy
Ancient Excavation
7% of 46 decks +6% synergy
Delay
7% of 46 decks +4% synergy
Countersquall
7% of 46 decks +4% synergy
Sorceries
Unmarked Grave
47% of 45 decks +45% synergy
Cathartic Reunion
41% of 46 decks +39% synergy
Demonic Tutor
39% of 46 decks +15% synergy
Blasphemous Act
39% of 46 decks -10% synergy
Gamble
37% of 46 decks +27% synergy
Final Parting
28% of 46 decks +27% synergy
Ransack the Lab
26% of 46 decks +26% synergy
Reckless Handling
26% of 23 decks +25% synergy
Careful Study
24% of 46 decks +23% synergy
Whispering Madness
22% of 46 decks +15% synergy
Vandalblast
22% of 46 decks +4% synergy
Wheel of Fortune
20% of 46 decks +10% synergy
Strategic Planning
17% of 46 decks +17% synergy
Tormenting Voice
17% of 46 decks +16% synergy
Grim Tutor
17% of 46 decks +13% synergy
Feed the Swarm
16% of 45 decks -20% synergy
Treasure Cruise
15% of 46 decks +11% synergy
Toxic Deluge
15% of 46 decks -5% synergy
Quasiduplicate
13% of 46 decks +12% synergy
Damnation
13% of 46 decks +3% synergy
By Force
11% of 46 decks +10% synergy
Notion Rain
11% of 46 decks +10% synergy
Compulsive Research
11% of 46 decks +10% synergy
Profane Tutor
9% of 45 decks +3% synergy
Wheel of Misfortune
9% of 45 decks +3% synergy
Jeska's Will
9% of 45 decks -9% synergy
Pieces of the Puzzle
9% of 46 decks +9% synergy
Massacre
9% of 46 decks +9% synergy
Pyroclasm
9% of 46 decks +8% synergy
Necromantic Selection
9% of 46 decks +8% synergy
Diabolic Tutor
9% of 46 decks +3% synergy
Irenicus's Vile Duplication
8% of 40 decks +5% synergy
Chart a Course
7% of 46 decks +3% synergy
Reforge the Soul
7% of 46 decks +2% synergy
Imperial Seal
7% of 46 decks -0% synergy
Utility Artifacts
Thousand-Year Elixir
48% of 46 decks +47% synergy
Collector's Vault
38% of 13 decks +37% synergy
The One Ring
38% of 24 decks +23% synergy
Swiftfoot Boots
30% of 46 decks +4% synergy
Lightning Greaves
30% of 46 decks +1% synergy
Conjurer's Closet
26% of 46 decks +23% synergy
Mirage Mirror
22% of 46 decks +20% synergy
Rings of Brighthearth
15% of 46 decks +14% synergy
Heartstone
13% of 46 decks +13% synergy
Cauldron of Souls
13% of 46 decks +13% synergy
Illusionist's Bracers
13% of 46 decks +12% synergy
Phyrexian Altar
11% of 46 decks +7% synergy
Encroaching Mycosynth
10% of 29 decks +9% synergy
Battlemage's Bracers
9% of 45 decks +8% synergy
Lithoform Engine
9% of 45 decks +5% synergy
Magistrate's Scepter
9% of 46 decks +9% synergy
Crystal Shard
9% of 46 decks +8% synergy
Sensei's Divining Top
9% of 46 decks +4% synergy
Wishclaw Talisman
9% of 46 decks +1% synergy
Netherborn Altar
7% of 45 decks +6% synergy
Panharmonicon
7% of 46 decks +1% synergy
Enchantments
Rhystic Study
30% of 46 decks +3% synergy
Rising of the Day
29% of 21 decks +24% synergy
Mystic Remora
28% of 46 decks +12% synergy
Training Grounds
24% of 46 decks +23% synergy
Candlekeep Sage
15% of 40 decks +15% synergy
Propaganda
9% of 46 decks -4% synergy
Sneak Attack
7% of 46 decks +1% synergy
Planeswalkers
Ashiok, Dream Render
17% of 46 decks +15% synergy
Narset, Parter of Veils
15% of 46 decks +11% synergy
Vraska, Betrayal's Sting
14% of 29 decks +12% synergy
Jace, Wielder of Mysteries
13% of 46 decks +12% synergy
Nicol Bolas, Dragon-God
7% of 46 decks +3% synergy
Utility Lands
Riptide Laboratory
41% of 46 decks +38% synergy
Command Beacon
26% of 46 decks +21% synergy
Bojuka Bog
20% of 46 decks -6% synergy
Sanctum of Eternity
17% of 46 decks +17% synergy
Minamo, School at Water's Edge
15% of 46 decks +13% synergy
Desolate Lighthouse
15% of 46 decks +8% synergy
Urborg, Tomb of Yawgmoth
13% of 46 decks -3% synergy
Geier Reach Sanitarium
11% of 46 decks +4% synergy
Reliquary Tower
11% of 46 decks -24% synergy
Otawara, Soaring City
9% of 43 decks -6% synergy
Flamekin Village
9% of 46 decks +8% synergy
Temple of the False God
9% of 46 decks -1% synergy
Hall of the Bandit Lord
7% of 46 decks +6% synergy
Vault of Whispers
7% of 46 decks +1% synergy
Great Furnace
7% of 46 decks +1% synergy
Seat of the Synod
7% of 46 decks +1% synergy
Ancient Tomb
7% of 46 decks -7% synergy
Mana Artifacts
Sol Ring
93% of 46 decks +3% synergy
Arcane Signet
85% of 46 decks -3% synergy
Izzet Signet
54% of 46 decks +14% synergy
Dimir Signet
54% of 46 decks +10% synergy
Talisman of Creativity
50% of 46 decks +5% synergy
Fellwar Stone
48% of 46 decks +12% synergy
Rakdos Signet
43% of 46 decks +1% synergy
Talisman of Dominance
41% of 46 decks -6% synergy
Talisman of Indulgence
35% of 46 decks -5% synergy
Relic of Sauron
33% of 18 decks +7% synergy
Basalt Monolith
33% of 46 decks +30% synergy
Coveted Jewel
24% of 46 decks +23% synergy
Commander's Sphere
20% of 46 decks -7% synergy
Mind Stone
15% of 46 decks -2% synergy
Patriar's Seal
12% of 40 decks +12% synergy
Thran Dynamo
11% of 46 decks +5% synergy
Mana Vault
11% of 46 decks +2% synergy
Chromatic Orrery
9% of 45 decks +8% synergy
Ventifact Bottle
9% of 46 decks +9% synergy
Mana Crypt
9% of 46 decks -2% synergy
Chromatic Lantern
9% of 46 decks -9% synergy
Jeweled Lotus
7% of 45 decks +0% synergy
Skull of Ramos
7% of 46 decks +6% synergy
Prismatic Geoscope
7% of 46 decks +6% synergy
Grim Monolith
7% of 46 decks +3% synergy
Lands
Command Tower
89% of 46 decks -3% synergy
Exotic Orchard
74% of 46 decks +17% synergy
Thundering Falls
62% of 8 decks +49% synergy
Undercity Sewers
62% of 8 decks +47% synergy
Raucous Theater
50% of 8 decks +36% synergy
Steam Vents
48% of 46 decks +4% synergy
Xander's Lounge
48% of 42 decks +4% synergy
Blood Crypt
46% of 46 decks +2% synergy
Watery Grave
46% of 46 decks +1% synergy
Crumbling Necropolis
46% of 46 decks -13% synergy
Bloodstained Mire
43% of 46 decks +13% synergy
Polluted Delta
41% of 46 decks +11% synergy
Smoldering Marsh
39% of 46 decks +0% synergy
Shivan Reef
37% of 46 decks +9% synergy
Scalding Tarn
37% of 46 decks +6% synergy
Sunken Hollow
37% of 46 decks -5% synergy
Morphic Pool
35% of 46 decks +0% synergy
Evolving Wilds
33% of 46 decks +5% synergy
Training Center
31% of 45 decks -4% synergy
Underground River
30% of 46 decks +6% synergy
Luxury Suite
30% of 46 decks -4% synergy
Flooded Strand
28% of 46 decks +18% synergy
Terramorphic Expanse
28% of 46 decks +4% synergy
Drowned Catacomb
28% of 46 decks -11% synergy
Dragonskull Summit
28% of 46 decks -13% synergy
Sulfurous Springs
26% of 46 decks +2% synergy
Sulfur Falls
26% of 46 decks -16% synergy
Misty Rainforest
24% of 46 decks +14% synergy
Marsh Flats
24% of 46 decks +14% synergy
City of Brass
24% of 46 decks +10% synergy
Wooded Foothills
22% of 46 decks +14% synergy
Verdant Catacombs
22% of 46 decks +12% synergy
Underground Sea
22% of 46 decks +8% synergy
Badlands
22% of 46 decks +8% synergy
Izzet Boilerworks
22% of 46 decks +7% synergy
Dimir Aqueduct
22% of 46 decks +7% synergy
Maestros Theater
21% of 42 decks +7% synergy
Volcanic Island
20% of 46 decks +6% synergy
Rakdos Carnarium
20% of 46 decks +5% synergy
Arid Mesa
17% of 46 decks +8% synergy
Mana Confluence
17% of 46 decks +5% synergy
Temple of Malice
17% of 46 decks +3% synergy
Temple of Deceit
17% of 46 decks +2% synergy
Temple of Epiphany
17% of 46 decks +0% synergy
Prismatic Vista
15% of 46 decks +11% synergy
Dismal Backwater
15% of 46 decks +8% synergy
River of Tears
13% of 46 decks +11% synergy
Ash Barrens
13% of 46 decks +8% synergy
Swiftwater Cliffs
13% of 46 decks +6% synergy
Darkwater Catacombs
13% of 46 decks +0% synergy