Deathrender
Gravedigger
Eternal Witness
Altar of Dementia
1

   Prerequisites

What do I need to start this combo?
Gravedigger in hand.
All other permanents on the battlefield.
Deathrender attached to Eternal Witness.

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing Eternal Witness.
2
Eternal Witness dies, triggering Deathrender, putting Gravedigger from your hand onto the battlefield and attaching Deathrender to it.
3
Gravedigger enters the battlefield, returning Eternal Witness from your graveyard to your hand.
4
Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Eternal Witness' power.
5
Activate Altar of Dementia by sacrificing Gravedigger.
6
Gravedigger dies, triggering Deathrender, putting Eternal Witness from your hand onto the battlefield and attaching Deathrender to it.
7
Eternal Witness enters the battlefield, returning Gravedigger from your graveyard to your hand.
8
Resolve the Altar of Dementia ability from step 5, causing target player to mill cards equal to Gravedigger's power.
9
Repeat.

   Results

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite mill
Infinite sacrifice triggers
Infinite self-mill
Top Commanders
Jarad, Golgari Lich Lord
0.05% of 4314 decks 2 decks
Game Changers
Necropotence
50% of 2 decks +47% synergy
Vampiric Tutor
50% of 2 decks +38% synergy
Creatures
Priest of Gix
100% of 2 decks +100% synergy
Wall of Blood
100% of 2 decks +99% synergy
Woodfall Primus
100% of 2 decks +99% synergy
Tormod, the Desecrator
100% of 2 decks +99% synergy
Yavimaya Elder
100% of 2 decks +98% synergy
Razaketh, the Foulblooded
100% of 2 decks +98% synergy
Lord of Extinction
100% of 2 decks +97% synergy
Golgari Findbroker
100% of 2 decks +96% synergy
Meren of Clan Nel Toth
100% of 2 decks +95% synergy
Stinkweed Imp
100% of 2 decks +95% synergy
Protean Hulk
100% of 2 decks +95% synergy
Sheoldred, Whispering One
100% of 2 decks +94% synergy
Satyr Wayfinder
100% of 2 decks +94% synergy
World Shaper
100% of 2 decks +94% synergy
Golgari Grave-Troll
100% of 2 decks +93% synergy
Avenger of Zendikar
100% of 2 decks +92% synergy
Cryptic Trilobite
50% of 2 decks +50% synergy
Relentless Dead
50% of 2 decks +50% synergy
Mindless Automaton
50% of 2 decks +50% synergy
Defiler of Flesh
50% of 2 decks +50% synergy
Phyrexian Devourer
50% of 2 decks +50% synergy
Sylvan Caryatid
50% of 2 decks +50% synergy
Endrek Sahr, Master Breeder
50% of 2 decks +49% synergy
Melira, Sylvok Outcast
50% of 2 decks +49% synergy
Mortivore
50% of 2 decks +49% synergy
Skirge Familiar
50% of 2 decks +49% synergy
Souls of the Lost
50% of 2 decks +49% synergy
Gravecrawler
50% of 2 decks +49% synergy
Grave Titan
50% of 2 decks +49% synergy
Skullwinder
50% of 2 decks +48% synergy
Smothering Abomination
50% of 2 decks +48% synergy
Kokusho, the Evening Star
50% of 2 decks +48% synergy
Sidisi, Undead Vizier
50% of 2 decks +47% synergy
Bloodghast
50% of 2 decks +47% synergy
Mikaeus, the Unhallowed
50% of 2 decks +46% synergy
Brawn
50% of 2 decks +46% synergy
Yargle and Multani
50% of 2 decks +46% synergy
Golgari Thug
50% of 2 decks +45% synergy
Farhaven Elf
50% of 2 decks +44% synergy
Izoni, Thousand-Eyed
50% of 2 decks +43% synergy
Gray Merchant of Asphodel
50% of 2 decks +43% synergy
Carrion Feeder
50% of 2 decks +42% synergy
Skull Prophet
50% of 2 decks +42% synergy
Craterhoof Behemoth
50% of 2 decks +41% synergy
Nyx Weaver
50% of 2 decks +40% synergy
Wood Elves
50% of 2 decks +40% synergy
Pitiless Plunderer
50% of 2 decks +36% synergy
Elves of Deep Shadow
50% of 2 decks +30% synergy
Birds of Paradise
50% of 2 decks +30% synergy
Elvish Mystic
50% of 2 decks +22% synergy
Instants
Hatred
100% of 2 decks +100% synergy
Harrow
50% of 2 decks +40% synergy
Grisly Salvage
50% of 2 decks +40% synergy
Sorceries
Victimize
100% of 2 decks +82% synergy
Stargaze
50% of 2 decks +49% synergy
Far Wanderings
50% of 2 decks +49% synergy
Diresight
50% of 2 decks +48% synergy
Coiling Rebirth
50% of 2 decks +48% synergy
Explosive Vegetation
50% of 2 decks +48% synergy
Season of Loss
50% of 2 decks +47% synergy
Jarad's Orders
50% of 2 decks +46% synergy
Splendid Reclamation
50% of 2 decks +45% synergy
Life from the Loam
50% of 2 decks +42% synergy
Buried Alive
50% of 2 decks +42% synergy
Dread Return
50% of 2 decks +40% synergy
Reanimate
50% of 2 decks +33% synergy
Kodama's Reach
50% of 2 decks +23% synergy
Rampant Growth
50% of 2 decks +15% synergy
Cultivate
50% of 2 decks +8% synergy
Utility Artifacts
Ashnod's Altar
100% of 2 decks +80% synergy
Swiftfoot Boots
100% of 2 decks +75% synergy
Skullclamp
100% of 2 decks +69% synergy
Golgari Locket
50% of 2 decks +48% synergy
Aetherflux Reservoir
50% of 2 decks +48% synergy
Crucible of Worlds
50% of 2 decks +46% synergy
Phyrexian Altar
50% of 2 decks +41% synergy
Lightning Greaves
50% of 2 decks +27% synergy
Enchantments
Phyrexian Arena
100% of 2 decks +86% synergy
One with the Kami
50% of 2 decks +50% synergy
Underworld Connections
50% of 2 decks +50% synergy
Black Market
50% of 2 decks +47% synergy
Phyrexian Reclamation
50% of 2 decks +47% synergy
Dictate of Erebos
50% of 2 decks +44% synergy
Ripples of Undeath
50% of 2 decks +42% synergy
Grave Pact
50% of 2 decks +42% synergy
Animate Dead
50% of 2 decks +41% synergy
Doubling Season
50% of 2 decks +35% synergy
Utility Lands
Tranquil Thicket
100% of 2 decks +92% synergy
Urborg, Tomb of Yawgmoth
100% of 2 decks +76% synergy
Dark Depths
50% of 2 decks +49% synergy
Polluted Mire
50% of 2 decks +49% synergy
Buried Ruin
50% of 2 decks +48% synergy
Thespian's Stage
50% of 2 decks +48% synergy
Svogthos, the Restless Tomb
50% of 2 decks +48% synergy
Field of Ruin
50% of 2 decks +48% synergy
Nykthos, Shrine to Nyx
50% of 2 decks +47% synergy
Hissing Quagmire
50% of 2 decks +46% synergy
Castle Locthwain
50% of 2 decks +45% synergy
Mortuary Mire
50% of 2 decks +45% synergy
Barren Moor
50% of 2 decks +42% synergy
Dryad Arbor
50% of 2 decks +41% synergy
High Market
50% of 2 decks +40% synergy
Grim Backwoods
50% of 2 decks +37% synergy
Phyrexian Tower
50% of 2 decks +36% synergy
Reliquary Tower
50% of 2 decks +28% synergy
Bojuka Bog
50% of 2 decks +11% synergy
Mana Artifacts
Talisman of Resilience
100% of 2 decks +75% synergy
Golgari Signet
100% of 2 decks +71% synergy
Sol Ring
50% of 2 decks -31% synergy
Lands
Jungle Hollow
100% of 2 decks +76% synergy
Twilight Mire
100% of 2 decks +69% synergy
Temple of Malady
100% of 2 decks +64% synergy
Golgari Rot Farm
100% of 2 decks +58% synergy
Tainted Wood
100% of 2 decks +58% synergy
Overgrown Tomb
100% of 2 decks +54% synergy
Llanowar Wastes
100% of 2 decks +48% synergy
Woodland Cemetery
100% of 2 decks +42% synergy
Command Tower
100% of 2 decks +14% synergy
Ash Barrens
50% of 2 decks +45% synergy
Myriad Landscape
50% of 2 decks +31% synergy
Underground Mortuary
50% of 2 decks +29% synergy
Evolving Wilds
50% of 2 decks +23% synergy
Deathcap Glade
50% of 2 decks +21% synergy
Verdant Catacombs
50% of 2 decks +21% synergy
Necroblossom Snarl
50% of 2 decks +16% synergy
Undergrowth Stadium
50% of 2 decks +10% synergy