Mairsil's Bottomless Grave

Commander / EDH Combo Jank UBR (Grixis)

matrixrunner

Mana (33)

• 1x Command Tower
• 1x Commander's Sphere
• 1x Crumbling Necropolis
• 1x Desolate Lighthouse
• 1x Dimir Aqueduct
• 1x Evolving Wilds
• 1x Grixis Panorama
• 4x Island
• 1x Izzet Boilerworks
• 3x Mountain
• 1x Path of Ancestry
• 1x Rakdos Carnarium
• 1x Reliquary Tower
• 1x Sol Ring
• 7x Swamp
• 1x Temple of Deceit
• 1x Temple of Epiphany
• 1x Temple of Malice
• 1x Temple of the False God
• 1x Terramorphic Expanse
• 1x Urborg, Tomb of Yawgmoth
• 1x Watery Grave

Bonus Effects (6)

• 1x Flayer of the Hatebound
• 1x Grim Haruspex
• 1x Shadows of the Past
• 1x Spark Double
• 1x Warstorm Surge
• 1x Zulaport Cutthroat

Haste Enablers (4)

• 1x Anger
• 1x Bloodsworn Steward
• 1x Fervor
• 1x Ogre Battledriver

Finishers (2)

• 1x Exsanguinate
• 1x Mind Grind

Sac enablers (19)

• 1x Alchemist's Apprentice
• 1x Barbarian Riftcutter
• 1x Blood Vassal
• 1x Bloodfire Colossus
• 1x Bottle Gnomes
• 1x Brain Weevil
• 1x Burnished Hart
• 1x Crosis's Attendant
• 1x Crypt Creeper
• 1x Daring Apprentice
• 1x Death Cultist
• 1x Goblin Flectomancer
• 1x Morgue Thrull
• 1x Overeager Apprentice
• 1x Reckless Reveler
• 1x Siren Stormtamer
• 1x Spiketail Drake
• 1x Traveler's Amulet
• 1x Vampire Hexmage

+1/+1 Counter Removal (9)

• 1x Cinderhaze Wretch
• 1x Crystalline Crawler
• 1x Deathbringer Thoctar
• 1x Lunar Avenger
• 1x Mindless Automaton
• 1x Spincrusher
• 1x Suncrusher
• 1x Triskelion
• 1x Workhorse

Utility Spells (3)

• 1x Crosis's Charm
• 1x Cyclonic Rift
• 1x Decree of Pain

Centerpiece (1)

• 1x Endling

Commander (1)

Utility Cages (10)

• 1x AEtherling
• 1x Arcanis the Omnipotent
• 1x Cavern Harpy
• 1x Drana, Kalastria Bloodchief
• 1x Galecaster Colossus
• 1x Jace's Archivist
• 1x Nevinyrral's Disk
• 1x Pestilent Souleater
• 1x Soul-Guide Lantern
• 1x Torchling

Endling Tutors (7)

• 1x Buried Alive
• 1x Clutch of the Undercity
• 1x Corpse Connoisseur
• 1x Diabolic Tutor
• 1x Dimir House Guard
• 1x Final Parting
• 1x Liliana Vess

Digging (5)

• 1x Ashiok, Dream Render
• 1x Fact or Fiction
• 1x Jar of Eyeballs
• 1x Liliana's Indignation
• 1x Windfall

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Maybeboard

Other (19)

• 1x Altar of the Brood
• 1x Black Sun's Zenith
• 1x Bontu's Last Reckoning
• 1x Chandra's Ignition
• 1x Death Match
• 1x Dictate of Erebos
• 1x Dralnu, Lich Lord
• 1x Fulminator Mage
• 1x Hamletback Goliath
• 1x Hope of Ghirapur
• 1x Impact Tremors
• 1x Kagemaro, First to Suffer
• 1x Laboratory Maniac
• 1x Mausoleum Wanderer
• 1x Mayhem Devil
• 1x Orbs of Warding
• 1x Shenanigans
• 1x Torment of Hailfire
• 1x Witchbane Orb

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With the release of Endling in modern horizons, Mairsil, the Pretender now has a way to get a ton of ability triggers for a single black mana each by giving him undying and sacrificing him. Self-sacrificing creatures or artifacts gives you an ETB trigger, any benefit of the sac ability, and a +1/+1 counter to use for any number of other caged abilities.

Tutors for searching up Endling, and then other combo pieces once you have Endling:
Clutch of the Undercity
Liliana Vess
Buried Alive
Diabolic Tutor
Final Parting
Dimir House Guard
Corpse Connoisseur
Or digging/looting for Endling, then other pieces:
Jar of Eyeballs
Windfall
Fact or Fiction
Ashiok, Dream Render
Desolate Lighthouse
Arcanis the Omnipotent
Jace's Archivist
Morgue Thrull
Shadows of the Past
Grim Haruspex
Combo pieces:
+1/+1 counter removal for repeat undying:
Cinderhaze Wretch
Crystalline Crawler
Deathbringer Thoctar
Triskelion
Lunar Avenger
Mindless Automaton
Spincrusher
Suncrusher
Workhorse
Sacrifice outlets:
Alchemist's Apprentice -- Draw as many cards as you want.
Blood Vassal -- Tons of black mana.
Overeager Apprentice -- Ditto, but dependent on hand size.
Siren Stormtamer -- Counter any targeted spell or ability against you.
Barbarian Riftcutter -- Make your opponents scoop.
Bloodfire Colossus -- Destroy everything.
Crosis's Attendant -- Infinite blue or red mana.
Crypt Creeper -- Prevent graveyard shenanigans.
Spiketail Drake -- Force your opponents to pay more.
Vampire Hexmage -- Bork any Planeswalker, charge artifact, level up cards (as if), or +1/+1 counter strategy.
Morgue Thrull -- If you need to find more pieces in your yard or want to sub in Laboratory Maniac as a win con.
Goblin Flectomancer -- Redirect spells around the table.
Traveler's Amulet -- Grab basic lands.
Bonus trigger effects with above combo pieces:
Zulaport Cutthroat -- Get ahead in life.
Warstorm Surge -- Finish faster.
Flayer of the Hatebound -- More damage.

Combos and alternate win conditions:
Pestilent Souleater caged + Triskelion / Deathbringer Thoctar caged -- trade +1/+1 counters for poison counters.
Endling caged for deathtouch + Triskelion caged -- destroy any targetable, non-indestructible creature.
Blood Vassal caged + Exsanguinate -- As much black mana as you need to reduce everybody else's life to zero.
Lunar Avenger caged / Anger in yard + Mountain / Ogre Battledriver / Bloodsworn Steward + Daring Apprentice caged -- counter every single spell.

Weaknesses:
Anything that can exile or seize Endling before Mairsil does, i.e. most of these, or shut down Mairsil's activated abilities like these angels, this asshole, curse of weenies, player hate on a body, the Mairsil hate rock, unfun on a rock 2, any named card hate.

Date added	4 years
Last updated	4 years
Legality	This deck is Commander / EDH legal.
Rarity (main - side)	2 - 0 Mythic Rares 32 - 0 Rares 29 - 0 Uncommons 23 - 0 Commons
Cards	100
Avg. CMC	3.81
Tokens	Morph 2/2 C