Mairsil, the Pretender + Endling + Blood Pet + Deathbringer Thoctar

Mairsil, the Pretender
Endling
Blood Pet
Deathbringer Thoctar

Requires
Mairsil, the Pretender must be on the battlefield. Endling must be in exile. Blood Pet must be in exile. Deathbringer Thoctar 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 Deathbringer Thoctar's ability by removing a +1/+1 counter from it, dealing 1 damage to any target.
  5. Repeat.
Results
Infinite damage. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Mairsil, the Pretender
2.60% of 1576 decks 41 decks
High Synergy Cards
Aetherling
95% of 41 decks +94% synergy
Blood Vassal
88% of 41 decks +88% synergy
Quicksilver Elemental
85% of 41 decks +85% synergy
Triskelion
80% of 41 decks +80% synergy
Nevinyrral's Disk
78% of 41 decks +77% synergy
Horseshoe Crab
76% of 41 decks +75% synergy
Arcanis the Omnipotent
76% of 41 decks +74% synergy
Torchling
73% of 41 decks +73% synergy
Asmodeus the Archfiend
71% of 41 decks +70% synergy
Anger
78% of 41 decks +69% synergy
Top Cards
Gilded Lotus
71% of 41 decks +66% synergy
Oriq Loremage
68% of 41 decks +67% synergy
Buried Alive
66% of 41 decks +62% synergy
Faithless Looting
66% of 41 decks +46% synergy
Cavern Harpy
59% of 41 decks +58% synergy
Staff of Domination
59% of 41 decks +58% synergy
Unmarked Grave
59% of 41 decks +56% synergy
Fact or Fiction
59% of 41 decks +47% synergy
Tree of Perdition
56% of 41 decks +56% synergy
Hateflayer
54% of 41 decks +53% synergy
Creatures
Mirror-Mad Phantasm
51% of 41 decks +51% synergy
Spikeshot Elder
46% of 41 decks +46% synergy
Pack Rat
39% of 41 decks +37% synergy
Anthroplasm
37% of 41 decks +36% synergy
Cinderhaze Wretch
34% of 41 decks +34% synergy
Sage of Hours
34% of 41 decks +34% synergy
Morphling
34% of 41 decks +34% synergy
Cephalid Inkshrouder
32% of 41 decks +31% synergy
Blighted Bat
29% of 41 decks +29% synergy
Crystalline Crawler
29% of 41 decks +29% synergy
Pili-Pala
29% of 41 decks +29% synergy
Walking Ballista
29% of 41 decks +29% synergy
Jace's Archivist
27% of 41 decks +20% synergy
Soliton
24% of 41 decks +24% synergy
Ovinomancer
24% of 41 decks +24% synergy
Shauku, Endbringer
24% of 41 decks +24% synergy
Mercurial Chemister
24% of 41 decks +24% synergy
Laboratory Maniac
22% of 41 decks +20% synergy
Notion Thief
22% of 41 decks +13% synergy
Arco-Flagellant
22% of 32 decks +22% synergy
Goro-Goro, Disciple of Ryusei
21% of 38 decks +20% synergy
Thassa, Deep-Dwelling
20% of 41 decks +16% synergy
Likeness Looter
18% of 17 decks +16% synergy
Dralnu, Lich Lord
17% of 41 decks +17% synergy
Deadeye Navigator
17% of 41 decks +15% synergy
Thassa's Oracle
17% of 41 decks +9% synergy
Displacer Kitten
16% of 38 decks +12% synergy
Magus of the Bazaar
15% of 41 decks +15% synergy
Argent Sphinx
15% of 41 decks +14% synergy
Minion of Leshrac
15% of 41 decks +14% synergy
Galecaster Colossus
15% of 41 decks +13% synergy
Azami, Lady of Scrolls
15% of 41 decks +12% synergy
Argivian Avenger
12% of 32 decks +12% synergy
Narcomoeba
12% of 41 decks +12% synergy
Visara the Dreadful
12% of 41 decks +12% synergy
Grinning Ignus
12% of 41 decks +12% synergy
Chainer, Dementia Master
12% of 41 decks +12% synergy
Fatestitcher
12% of 41 decks +11% synergy
Spark Double
12% of 41 decks +4% synergy
Dregscape Zombie
10% of 41 decks +10% synergy
Myr Propagator
10% of 41 decks +10% synergy
Grand Architect
10% of 41 decks +10% synergy
Skyship Stalker
10% of 41 decks +10% synergy
Skirge Familiar
10% of 41 decks +10% synergy
Avatar of Woe
10% of 41 decks +9% synergy
Corpse Connoisseur
10% of 41 decks +9% synergy
Duskmantle Guildmage
10% of 41 decks +9% synergy
Doom Whisperer
10% of 41 decks +8% synergy
Sakashima the Impostor
10% of 41 decks +8% synergy
Lunar Avenger
7% of 41 decks +7% synergy
Instants
Counterspell
54% of 41 decks +9% synergy
Frantic Search
51% of 41 decks +37% synergy
Entomb
46% of 41 decks +40% synergy
Thrill of Possibility
46% of 41 decks +38% synergy
Essence Flux
44% of 41 decks +41% synergy
Negate
44% of 41 decks +20% synergy
Planar Incision
37% of 38 decks +35% synergy
Demand Answers
33% of 12 decks +31% synergy
Blur
32% of 38 decks +31% synergy
Chaos Warp
29% of 41 decks -12% synergy
Ghostly Flicker
27% of 41 decks +20% synergy
Izzet Charm
24% of 41 decks +22% synergy
Evacuation
24% of 41 decks +21% synergy
Arcane Denial
22% of 41 decks -6% synergy
Dispel
20% of 41 decks +16% synergy
Terminate
20% of 41 decks -9% synergy
Hostile Negotiations
19% of 32 decks +17% synergy
Price of Fame
17% of 41 decks +17% synergy
Teferi's Time Twist
17% of 41 decks +15% synergy
Rakdos Charm
17% of 41 decks +2% synergy
Vampiric Tutor
17% of 41 decks -2% synergy
Cyclonic Rift
17% of 41 decks -11% synergy
Dark Ritual
17% of 41 decks -12% synergy
An Offer You Can't Refuse
16% of 38 decks -6% synergy
Otherworldly Gaze
15% of 39 decks +15% synergy
Consider
15% of 39 decks +10% synergy
Maestros Charm
13% of 38 decks +8% synergy
Hagra Mauling
12% of 41 decks +10% synergy
Thirst for Knowledge
12% of 41 decks +10% synergy
Spell Pierce
12% of 41 decks +9% synergy
Red Elemental Blast
12% of 41 decks +7% synergy
Force of Will
12% of 41 decks +1% synergy
Cathartic Pyre
10% of 39 decks +10% synergy
Dispersal Shield
10% of 41 decks +10% synergy
Into the Roil
10% of 41 decks +9% synergy
Saw It Coming
10% of 41 decks +9% synergy
Stubborn Denial
10% of 41 decks +9% synergy
Mana Leak
10% of 41 decks +8% synergy
Perplex
10% of 41 decks +8% synergy
Forbidden Alchemy
10% of 41 decks +8% synergy
Thought Scour
10% of 41 decks +8% synergy
Mana Drain
10% of 41 decks -6% synergy
Deflecting Swat
10% of 41 decks -7% synergy
Swan Song
10% of 41 decks -7% synergy
Bedevil
10% of 41 decks -12% synergy
Necrologia
7% of 41 decks +7% synergy
Murderous Cut
7% of 41 decks +7% synergy
Ancient Excavation
7% of 41 decks +7% synergy
Run Away Together
7% of 41 decks +7% synergy
Jwari Disruption
7% of 41 decks +7% synergy
Sorceries
Blasphemous Act
49% of 41 decks -0% synergy
Final Parting
41% of 41 decks +40% synergy
Cathartic Reunion
34% of 41 decks +32% synergy
Windfall
32% of 41 decks +8% synergy
Gamble
27% of 41 decks +17% synergy
Feed the Swarm
27% of 41 decks -9% synergy
Demonic Tutor
24% of 41 decks +0% synergy
Reckless Handling
24% of 21 decks +23% synergy
Careful Study
22% of 41 decks +21% synergy
Treasure Cruise
22% of 41 decks +18% synergy
Ransack the Lab
20% of 41 decks +19% synergy
Diabolic Tutor
20% of 41 decks +14% synergy
Whispering Madness
20% of 41 decks +12% synergy
Chain Reaction
17% of 41 decks +14% synergy
Languish
15% of 41 decks +12% synergy
Dread Return
15% of 41 decks +11% synergy
Vandalblast
15% of 41 decks -4% synergy
Fervent Mastery
12% of 41 decks +12% synergy
Strategic Planning
12% of 41 decks +12% synergy
Tormenting Voice
12% of 41 decks +11% synergy
Grim Tutor
12% of 41 decks +7% synergy
Notion Rain
10% of 41 decks +9% synergy
Decree of Pain
10% of 41 decks +3% synergy
Toxic Deluge
10% of 41 decks -10% synergy
Consuming Tide
8% of 38 decks +7% synergy
Dimir Machinations
7% of 41 decks +7% synergy
Wash Out
7% of 41 decks +7% synergy
Deadly Tempest
7% of 41 decks +6% synergy
Scheming Symmetry
7% of 41 decks +6% synergy
Sign in Blood
7% of 41 decks +3% synergy
Deep Analysis
7% of 41 decks +3% synergy
Wheel of Misfortune
7% of 41 decks +1% synergy
Wheel of Fortune
7% of 41 decks -2% synergy
Damnation
7% of 41 decks -3% synergy
Ponder
7% of 41 decks -4% synergy
Reanimate
7% of 41 decks -13% synergy
Utility Artifacts
Pendant of Prosperity
51% of 41 decks +51% synergy
Thousand-Year Elixir
37% of 41 decks +35% synergy
Swiftfoot Boots
37% of 41 decks +11% synergy
Conjurer's Closet
22% of 41 decks +19% synergy
Collector's Vault
20% of 15 decks +19% synergy
Mirage Mirror
20% of 41 decks +18% synergy
Lightning Greaves
17% of 41 decks -13% synergy
Netherborn Altar
15% of 41 decks +14% synergy
Cauldron of Souls
15% of 41 decks +14% synergy
Crystal Shard
15% of 41 decks +14% synergy
The One Ring
14% of 21 decks -1% synergy
Magistrate's Scepter
12% of 41 decks +12% synergy
Illusionist's Bracers
12% of 41 decks +11% synergy
Battlemage's Bracers
10% of 41 decks +9% synergy
Rings of Brighthearth
10% of 41 decks +8% synergy
Mindcrank
10% of 41 decks +7% synergy
Phyrexian Altar
10% of 41 decks +6% synergy
Wayfarer's Bauble
10% of 41 decks -8% synergy
Heartstone
7% of 41 decks +7% synergy
Oblivion Stone
7% of 41 decks +6% synergy
Blade of Selves
7% of 41 decks +3% synergy
Sensei's Divining Top
7% of 41 decks +3% synergy
Enchantments
Rising of the Day
21% of 19 decks +16% synergy
Candlekeep Sage
18% of 38 decks +18% synergy
Fervor
17% of 41 decks +16% synergy
Mystic Remora
17% of 41 decks +1% synergy
Rhystic Study
17% of 41 decks -10% synergy
Training Grounds
12% of 41 decks +11% synergy
Propaganda
12% of 41 decks -0% synergy
Bitter Reunion
9% of 32 decks +9% synergy
Kasmina's Transmutation
7% of 41 decks +7% synergy
Planeswalkers
Jace, Wielder of Mysteries
10% of 41 decks +8% synergy
Ashiok, Dream Render
10% of 41 decks +7% synergy
Utility Lands
Riptide Laboratory
49% of 41 decks +45% synergy
Desolate Lighthouse
22% of 41 decks +15% synergy
Vault of Whispers
20% of 41 decks +14% synergy
Great Furnace
20% of 41 decks +14% synergy
Seat of the Synod
20% of 41 decks +14% synergy
Bojuka Bog
20% of 41 decks -6% synergy
Command Beacon
17% of 41 decks +12% synergy
Geier Reach Sanitarium
17% of 41 decks +10% synergy
Sanctum of Eternity
12% of 41 decks +12% synergy
Minamo, School at Water's Edge
12% of 41 decks +10% synergy
Temple of the False God
12% of 41 decks +3% synergy
Reliquary Tower
10% of 41 decks -25% synergy
Mana Artifacts
Sol Ring
90% of 41 decks -1% synergy
Arcane Signet
80% of 41 decks -8% synergy
Izzet Signet
66% of 41 decks +26% synergy
Dimir Signet
61% of 41 decks +17% synergy
Talisman of Creativity
51% of 41 decks +6% synergy
Fellwar Stone
49% of 41 decks +13% synergy
Talisman of Dominance
49% of 41 decks +2% synergy
Rakdos Signet
44% of 41 decks +2% synergy
Talisman of Indulgence
32% of 41 decks -8% synergy
Basalt Monolith
24% of 41 decks +22% synergy
Mind Stone
24% of 41 decks +7% synergy
Coveted Jewel
22% of 41 decks +21% synergy
Commander's Sphere
17% of 41 decks -9% synergy
Relic of Sauron
17% of 18 decks -10% synergy
Patriar's Seal
16% of 38 decks +15% synergy
Ventifact Bottle
12% of 41 decks +12% synergy
Sky Diamond
10% of 41 decks +7% synergy
Chromatic Orrery
7% of 41 decks +6% synergy
Dreamstone Hedron
7% of 41 decks +6% synergy
Thought Vessel
7% of 41 decks -12% synergy
Lands
Command Tower
80% of 41 decks -12% synergy
Exotic Orchard
76% of 41 decks +18% synergy
Crumbling Necropolis
61% of 41 decks +2% synergy
Thundering Falls
55% of 11 decks +41% synergy
Undercity Sewers
55% of 11 decks +39% synergy
Shivan Reef
49% of 41 decks +21% synergy
Sunken Hollow
46% of 41 decks +4% synergy
Raucous Theater
45% of 11 decks +31% synergy
Ferrous Lake
43% of 7 decks +38% synergy
Terramorphic Expanse
41% of 41 decks +18% synergy
Underground River
39% of 41 decks +14% synergy
Evolving Wilds
39% of 41 decks +12% synergy
Smoldering Marsh
39% of 41 decks +0% synergy
Sulfur Falls
39% of 41 decks -3% synergy
Maestros Theater
37% of 38 decks +23% synergy
Drowned Catacomb
32% of 41 decks -8% synergy
Dragonskull Summit
29% of 41 decks -12% synergy
Xander's Lounge
29% of 38 decks -15% synergy
Sulfurous Springs
27% of 41 decks +3% synergy
Steam Vents
24% of 41 decks -20% synergy
Choked Estuary
22% of 41 decks +4% synergy
Polluted Delta
22% of 41 decks -8% synergy
Bloodstained Mire
22% of 41 decks -9% synergy
Morphic Pool
22% of 41 decks -13% synergy
Blood Crypt
22% of 41 decks -22% synergy
Watery Grave
22% of 41 decks -23% synergy
Temple of Deceit
20% of 41 decks +4% synergy
Temple of Epiphany
20% of 41 decks +2% synergy
Scalding Tarn
20% of 41 decks -12% synergy
Path of Ancestry
20% of 41 decks -13% synergy
Training Center
20% of 41 decks -16% synergy
Shadowblood Ridge
17% of 41 decks +6% synergy
Frostboil Snarl
17% of 41 decks +3% synergy
Foreboding Ruins
17% of 41 decks -3% synergy
Haunted Ridge
15% of 39 decks -5% synergy
Shipwreck Marsh
15% of 39 decks -10% synergy
Dimir Aqueduct
15% of 41 decks -1% synergy
Luxury Suite
15% of 41 decks -20% synergy
Stormcarved Coast
13% of 38 decks -9% synergy
Grixis Panorama
12% of 41 decks +6% synergy
Mana Confluence
12% of 41 decks +0% synergy
City of Brass
12% of 41 decks -1% synergy
Temple of Malice
12% of 41 decks -2% synergy
Swiftwater Cliffs
10% of 41 decks +3% synergy
Wooded Foothills
10% of 41 decks +2% synergy
Flooded Strand
10% of 41 decks -0% synergy
Darkwater Catacombs
10% of 41 decks -3% synergy
Badlands
10% of 41 decks -4% synergy
Myriad Landscape
10% of 41 decks -5% synergy
Rakdos Carnarium
10% of 41 decks -5% synergy