Doomsday + Grenzo, Dungeon Warden + Kiki-Jiki, Mirror Breaker + Conspicuous Snoop + Torch Courier + Brazen Buccaneers + Sling-Gang Lieutenant

Doomsday
Grenzo, Dungeon Warden
Kiki-Jiki, Mirror Breaker
Conspicuous Snoop
Torch Courier
Brazen Buccaneers
Sling-Gang Lieutenant

Requires
Doomsday must be in hand. Grenzo, Dungeon Warden must be on the battlefield. Kiki-Jiki, Mirror Breaker must be in the graveyard, or in the library. Conspicuous Snoop must be in the graveyard, or in the library. Torch Courier must be in the graveyard, or in the library. Brazen Buccaneers must be in the graveyard, or in the library. Sling-Gang Lieutenant must be in the graveyard, or in the library. Your life total is at least 2. Mana needed: 4bbbr
Steps
  1. Cast Doomsday by paying bbb, searching your library and graveyard for Torch Courier, Kiki-Jiki, Sling-Gang Lieutenant, Brazen Buccaneers and Conspicuous Snoop, exiling all other cards from your graveyard and library, and then placing the remaining cards on top of your library in the order previously listed and losing half your life, rounded up.
  2. Activate Grenzo by paying 2, putting Conspicuous Snoop into your graveyard and then onto the battlefield.
  3. Cast Torch Courier from the top of your library by paying r.
  4. Activate Torch Courier by sacrificing it, giving Conspicuous Snoop haste until end of turn.
  5. Activate Conspicuous Snoop using Kiki-Jiki's ability by tapping it, creating a token copy of Conspicuous Snoop with haste.
  6. Repeat step 5 with the new Conspicuous Snoop token an arbitrarily large amount of times.
  7. Activate Grenzo by paying 2, putting Brazen Buccaneers into your graveyard and then onto the battlefield.
  8. Brazen Buccaneers enters the battlefield, revealing Kiki-Jiki, putting a +1/+1 counter on Brazen Buccaneers and putting Kiki-Jiki into your graveyard.
  9. Activate a Conspicuous Snoop using Sling-Gang Lieutenant's ability by sacrificing a Goblin, causing an opponent to lose 1 life and you to gain 1 life.
  10. Repeat from step 9.
Results
Each opponent loses the game. Infinite creature tokens with haste. Infinite death triggers. Infinite ETB. Infinite lifegain. Infinite lifegain triggers. Infinite lifeloss. Infinite LTB. Infinite sacrifice triggers. Infinite tap triggers.

Top Commanders (3)
Dargo, the Shipwrecker // Keskit, the Flesh Sculptor
0.57% of 174 decks 1 decks
Grenzo, Dungeon Warden
0.06% of 3254 decks 2 decks
Zurgo Helmsmasher
0.03% of 3911 decks 1 decks
Top Cards (1)
Terminate
100% of 4 decks +95% synergy
Creatures (50)
Mishra, Tamer of Mak Fawa
100% of 1 decks +100% synergy
Bruenor Battlehammer
100% of 1 decks +99% synergy
Halvar, God of Battle
100% of 1 decks +99% synergy
Ardenn, Intrepid Archaeologist
100% of 1 decks +99% synergy
Stoneforge Mystic
100% of 1 decks +99% synergy
Mother of Runes
100% of 1 decks +97% synergy
Grand Abolisher
100% of 1 decks +96% synergy
Esper Sentinel
100% of 1 decks +90% synergy
Swiftgear Drake
100% of 1 decks +100% synergy
Mogg Fanatic
75% of 4 decks +75% synergy
Viscera Seer
75% of 4 decks +70% synergy
Young Necromancer
50% of 4 decks +50% synergy
Junktroller
50% of 4 decks +50% synergy
Priest of Urabrask
50% of 4 decks +50% synergy
Priest of Gix
50% of 4 decks +50% synergy
Shambling Ghast
50% of 4 decks +49% synergy
Impulsive Pilferer
50% of 4 decks +49% synergy
Ravenous Chupacabra
50% of 4 decks +48% synergy
Carrion Feeder
50% of 4 decks +47% synergy
Imperial Recruiter
50% of 4 decks +47% synergy
Ardent Elementalist
33% of 3 decks +33% synergy
Goldhound
33% of 3 decks +33% synergy
Patron of the Arts
33% of 3 decks +33% synergy
Defiler of Instinct
33% of 3 decks +32% synergy
Lizard Blades
33% of 3 decks +32% synergy
Seekers' Squire
25% of 4 decks +25% synergy
Ignition Team
25% of 4 decks +25% synergy
Canal Dredger
25% of 4 decks +25% synergy
Pillardrop Warden
25% of 4 decks +25% synergy
Liliana's Shade
25% of 4 decks +25% synergy
Dross Hopper
25% of 4 decks +25% synergy
Epitaph Golem
25% of 4 decks +25% synergy
Tuktuk Scrapper
25% of 4 decks +25% synergy
Clone Shell
25% of 4 decks +25% synergy
Workhorse
25% of 4 decks +25% synergy
Dire Fleet Hoarder
25% of 4 decks +25% synergy
Nekrataal
25% of 4 decks +25% synergy
Mindclaw Shaman
25% of 4 decks +25% synergy
Thermopod
25% of 4 decks +25% synergy
Bloodthrone Vampire
25% of 4 decks +25% synergy
Tuktuk Rubblefort
25% of 4 decks +25% synergy
Murderous Redcap
25% of 4 decks +25% synergy
Mindblade Render
25% of 4 decks +25% synergy
Tree of Perdition
25% of 4 decks +25% synergy
Plundering Barbarian
25% of 4 decks +25% synergy
Goblin Recruiter
25% of 4 decks +24% synergy
Workshop Assistant
25% of 4 decks +24% synergy
Pilgrim's Eye
25% of 4 decks +24% synergy
Beetleback Chief
25% of 4 decks +24% synergy
Dream Devourer
25% of 4 decks +24% synergy
Instants (23)
Deflecting Palm
100% of 1 decks +99% synergy
Utter End
100% of 1 decks +98% synergy
Anguished Unmaking
100% of 1 decks +94% synergy
Boros Charm
100% of 1 decks +94% synergy
Swords to Plowshares
100% of 1 decks +72% synergy
Dark Ritual
75% of 4 decks +64% synergy
Seething Song
50% of 4 decks +47% synergy
Infernal Grasp
33% of 3 decks +29% synergy
Dash Hopes
25% of 4 decks +25% synergy
Unlicensed Disintegration
25% of 4 decks +25% synergy
Fire Prophecy
25% of 4 decks +25% synergy
Burnt Offering
25% of 4 decks +25% synergy
Fire Covenant
25% of 4 decks +24% synergy
Desperate Ritual
25% of 4 decks +24% synergy
Tragic Slip
25% of 4 decks +23% synergy
Cabal Ritual
25% of 4 decks +23% synergy
Tibalt's Trickery
25% of 4 decks +22% synergy
Red Elemental Blast
25% of 4 decks +22% synergy
Go for the Throat
25% of 4 decks +22% synergy
Bedevil
25% of 4 decks +22% synergy
Village Rites
25% of 4 decks +20% synergy
Abrade
25% of 4 decks +20% synergy
Vampiric Tutor
25% of 4 decks +15% synergy
Sorceries (31)
Cataclysm
100% of 1 decks +100% synergy
Shatter the Sky
100% of 1 decks +100% synergy
Depopulate
100% of 1 decks +100% synergy
Armageddon
100% of 1 decks +99% synergy
Steelshaper's Gift
100% of 1 decks +99% synergy
Open the Armory
100% of 1 decks +98% synergy
Feed the Swarm
75% of 4 decks +65% synergy
Infernal Plunge
50% of 4 decks +50% synergy
Mandate of Abaddon
50% of 2 decks +49% synergy
Rite of Flame
50% of 4 decks +48% synergy
Fatal Grudge
33% of 3 decks +33% synergy
Imposing Grandeur
33% of 3 decks +33% synergy
Skull Storm
25% of 4 decks +25% synergy
Increasing Ambition
25% of 4 decks +25% synergy
Irencrag Feat
25% of 4 decks +25% synergy
Plague Wind
25% of 4 decks +25% synergy
Cut // Ribbons
25% of 4 decks +25% synergy
Tendrils of Agony
25% of 4 decks +25% synergy
Final Parting
25% of 4 decks +24% synergy
Strike It Rich
25% of 4 decks +24% synergy
Seize the Day
25% of 4 decks +24% synergy
Mizzix's Mastery
25% of 4 decks +23% synergy
Brass's Bounty
25% of 4 decks +23% synergy
Dread Return
25% of 4 decks +22% synergy
Read the Bones
25% of 4 decks +21% synergy
Diabolic Intent
25% of 4 decks +20% synergy
Night's Whisper
25% of 4 decks +20% synergy
Vandalblast
25% of 4 decks +17% synergy
Jeska's Will
25% of 4 decks +16% synergy
Demonic Tutor
25% of 4 decks +13% synergy
Blasphemous Act
25% of 4 decks +9% synergy
Utility Artifacts (26)
Sunforger
100% of 1 decks +99% synergy
The Cauldron of Eternity
50% of 4 decks +50% synergy
Mycosynth Wellspring
50% of 4 decks +49% synergy
Prized Statue
33% of 3 decks +33% synergy
Two-Handed Axe
33% of 3 decks +32% synergy
The Reaver Cleaver
33% of 3 decks +31% synergy
Darksteel Pendant
25% of 4 decks +25% synergy
Reito Lantern
25% of 4 decks +25% synergy
Tel-Jilad Stylus
25% of 4 decks +25% synergy
Worldslayer
25% of 4 decks +25% synergy
Blazing Sunsteel
25% of 4 decks +25% synergy
Crystal Ball
25% of 4 decks +25% synergy
Assault Suit
25% of 4 decks +25% synergy
Heartstone
25% of 4 decks +24% synergy
Defense Grid
25% of 4 decks +24% synergy
Treasure Map
25% of 4 decks +24% synergy
Teferi's Puzzle Box
25% of 4 decks +24% synergy
Krark-Clan Ironworks
25% of 4 decks +24% synergy
Embercleave
25% of 4 decks +24% synergy
Ichor Wellspring
25% of 4 decks +23% synergy
Loxodon Warhammer
25% of 4 decks +23% synergy
Sword of Feast and Famine
25% of 4 decks +23% synergy
Wishclaw Talisman
25% of 4 decks +22% synergy
Shadowspear
25% of 4 decks +21% synergy
Phyrexian Altar
25% of 4 decks +21% synergy
Swiftfoot Boots
25% of 4 decks -3% synergy
Enchantments (11)
Fighter Class
100% of 1 decks +99% synergy
Sigarda's Aid
100% of 1 decks +98% synergy
Blind Obedience
100% of 1 decks +97% synergy
Braid of Fire
50% of 4 decks +50% synergy
Goblin Bombardment
50% of 4 decks +47% synergy
The Cruelty of Gix
33% of 3 decks +32% synergy
Agent of the Iron Throne
33% of 3 decks +32% synergy
Mindmoil
25% of 4 decks +25% synergy
Aggravated Assault
25% of 4 decks +24% synergy
Impact Tremors
25% of 4 decks +21% synergy
Phyrexian Arena
25% of 4 decks +18% synergy
Planeswalkers (1)
Liliana, Untouched by Death
25% of 4 decks +25% synergy
Utility Lands (17)
Axgard Armory
100% of 1 decks +99% synergy
Sunhome, Fortress of the Legion
100% of 1 decks +99% synergy
Thran Portal
33% of 3 decks +33% synergy
Molten Slagheap
25% of 4 decks +25% synergy
Phyrexia's Core
25% of 4 decks +25% synergy
Boseiju, Who Shelters All
25% of 4 decks +24% synergy
Drownyard Temple
25% of 4 decks +24% synergy
Zhalfirin Void
25% of 4 decks +24% synergy
Vault of Whispers
25% of 4 decks +23% synergy
Spinerock Knoll
25% of 4 decks +23% synergy
Bonders' Enclave
25% of 4 decks +23% synergy
Emergence Zone
25% of 4 decks +22% synergy
Great Furnace
25% of 4 decks +22% synergy
Command Beacon
25% of 4 decks +20% synergy
Buried Ruin
25% of 4 decks +20% synergy
Bojuka Bog
25% of 4 decks +9% synergy
Rogue's Passage
25% of 4 decks +6% synergy
Mana Artifacts (20)
Talisman of Hierarchy
100% of 1 decks +94% synergy
Sol Ring
100% of 4 decks +16% synergy
Rakdos Signet
75% of 4 decks +68% synergy
Arcane Signet
75% of 4 decks +4% synergy
Talisman of Indulgence
50% of 4 decks +44% synergy
Mind Stone
50% of 4 decks +32% synergy
Shadowblood Egg
25% of 4 decks +25% synergy
Guild Globe
25% of 4 decks +25% synergy
Vessel of Endless Rest
25% of 4 decks +25% synergy
Thran Turbine
25% of 4 decks +25% synergy
Sol Talisman
25% of 4 decks +24% synergy
Springleaf Drum
25% of 4 decks +23% synergy
Fire Diamond
25% of 4 decks +22% synergy
Charcoal Diamond
25% of 4 decks +22% synergy
Thran Dynamo
25% of 4 decks +20% synergy
Everflowing Chalice
25% of 4 decks +20% synergy
Lotus Petal
25% of 4 decks +18% synergy
Chromatic Lantern
25% of 4 decks +16% synergy
Commander's Sphere
25% of 4 decks +8% synergy
Fellwar Stone
25% of 4 decks +4% synergy
Lands (32)
Needleverge Pathway
100% of 1 decks +98% synergy
Brightclimb Pathway
100% of 1 decks +97% synergy
Nomad Outpost
100% of 1 decks +97% synergy
Savai Triome
100% of 1 decks +97% synergy
Sundown Pass
100% of 1 decks +96% synergy
Battlefield Forge
100% of 1 decks +95% synergy
Clifftop Retreat
100% of 1 decks +95% synergy
Isolated Chapel
100% of 1 decks +94% synergy
Vault of Champions
100% of 1 decks +94% synergy
Caves of Koilos
100% of 1 decks +94% synergy
Sacred Foundry
100% of 1 decks +92% synergy
Godless Shrine
100% of 1 decks +90% synergy
Command Tower
100% of 4 decks +27% synergy
Dragonskull Summit
75% of 4 decks +68% synergy
Smoldering Marsh
75% of 4 decks +68% synergy
Foreboding Ruins
50% of 4 decks +46% synergy
Blood Crypt
50% of 4 decks +41% synergy
Exotic Orchard
50% of 4 decks +15% synergy
Geothermal Bog
33% of 3 decks +32% synergy
Sulfurous Mire
25% of 4 decks +24% synergy
Blackcleave Cliffs
25% of 4 decks +24% synergy
Drossforge Bridge
25% of 4 decks +24% synergy
Graven Cairns
25% of 4 decks +23% synergy
Tainted Peak
25% of 4 decks +23% synergy
Blightstep Pathway
25% of 4 decks +23% synergy
Shadowblood Ridge
25% of 4 decks +22% synergy
Forbidden Orchard
25% of 4 decks +22% synergy
Rakdos Carnarium
25% of 4 decks +21% synergy
Haunted Ridge
25% of 4 decks +21% synergy
Sulfurous Springs
25% of 4 decks +21% synergy
Luxury Suite
25% of 4 decks +19% synergy
Mana Confluence
25% of 4 decks +17% synergy