Gravespawn Sovereign + Intruder Alarm + Viscera Seer

Gravespawn Sovereign
Intruder Alarm
Viscera Seer

Requires
Gravespawn Sovereign must be on the battlefield. Intruder Alarm must be on the battlefield. Viscera Seer must be on the battlefield. You control at least four other Zombies.
Steps
  1. Activate Viscera Seer by sacrificing itself, causing you to scry 1.
  2. Activate Gravespawn Sovereign by tapping five untapped Zombies you control, returning Viscera Seer from your graveyard to the battlefield.
  3. Viscera Seer enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  4. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite scry 1. Infinite untap of creatures.

Wilhelt, the Rotcleaver
0.01% of 18970 decks 2 decks
Sidisi, Brood Tyrant
0.03% of 6243 decks 2 decks
Phenax, God of Deception
0.02% of 6334 decks 1 decks
Marneus Calgar
0.01% of 10468 decks 1 decks
Kels, Fight Fixer
0.15% of 680 decks 1 decks
High Synergy Cards
Gravecrawler
71% of 7 decks +69% synergy
Carrion Feeder
71% of 7 decks +66% synergy
Zulaport Cutthroat
71% of 7 decks +61% synergy
Cryptbreaker
57% of 7 decks +56% synergy
Fleshbag Marauder
57% of 7 decks +53% synergy
Dread Return
57% of 7 decks +52% synergy
Syr Konrad, the Grim
57% of 7 decks +48% synergy
Gray Merchant of Asphodel
57% of 7 decks +48% synergy
Creatures
Wayward Servant
100% of 1 decks +99% synergy
God-Eternal Oketra
100% of 1 decks +99% synergy
Grim Servant
100% of 1 decks +99% synergy
Luminous Broodmoth
100% of 1 decks +98% synergy
Timeless Witness
100% of 2 decks +97% synergy
Haywire Mite
100% of 1 decks +96% synergy
Corpse Knight
100% of 1 decks +94% synergy
Muldrotha, the Gravetide
100% of 2 decks +94% synergy
Delighted Halfling
100% of 1 decks +86% synergy
Esper Sentinel
100% of 1 decks +79% synergy
Birds of Paradise
100% of 2 decks +73% synergy
Mirkwood Bats
75% of 4 decks +63% synergy
Nullmage Shepherd
50% of 2 decks +49% synergy
Beastcaller Savant
50% of 2 decks +49% synergy
Hermit Druid
50% of 2 decks +49% synergy
Tangled Florahedron
50% of 2 decks +49% synergy
Kagha, Shadow Archdruid
50% of 2 decks +48% synergy
Shigeki, Jukai Visionary
50% of 2 decks +48% synergy
Satyr Wayfinder
50% of 2 decks +48% synergy
Fiend Artisan
50% of 2 decks +47% synergy
Masked Vandal
50% of 2 decks +47% synergy
Meren of Clan Nel Toth
50% of 2 decks +47% synergy
Sylvan Safekeeper
50% of 2 decks +47% synergy
Yarok, the Desecrated
50% of 2 decks +47% synergy
World Shaper
50% of 2 decks +47% synergy
Priest of Titania
50% of 2 decks +46% synergy
Skull Prophet
50% of 2 decks +45% synergy
Arbor Elf
50% of 2 decks +43% synergy
Ramunap Excavator
50% of 2 decks +43% synergy
Bloom Tender
50% of 2 decks +42% synergy
Elves of Deep Shadow
50% of 2 decks +39% synergy
Deathrite Shaman
50% of 2 decks +38% synergy
Fyndhorn Elves
50% of 2 decks +37% synergy
Elvish Mystic
50% of 2 decks +32% synergy
Llanowar Elves
50% of 2 decks +29% synergy
Eternal Witness
50% of 2 decks +29% synergy
Liliana's Standard Bearer
43% of 7 decks +42% synergy
Plague Belcher
43% of 7 decks +42% synergy
Headless Rider
43% of 7 decks +41% synergy
Ghoulcaller Gisa
43% of 7 decks +41% synergy
Wilhelt, the Rotcleaver
43% of 7 decks +41% synergy
Diregraf Colossus
43% of 7 decks +41% synergy
Undead Augur
43% of 7 decks +41% synergy
Gisa and Geralf
43% of 7 decks +41% synergy
Woe Strider
43% of 7 decks +40% synergy
Stitcher's Supplier
43% of 7 decks +40% synergy
Diregraf Captain
43% of 7 decks +39% synergy
Midnight Reaper
43% of 7 decks +39% synergy
Zellix, Sanity Flayer
33% of 6 decks +32% synergy
Noosegraf Mob
29% of 7 decks +28% synergy
Instants
Enlightened Tutor
100% of 1 decks +82% synergy
Swords to Plowshares
100% of 1 decks +37% synergy
Gnaw to the Bone
50% of 2 decks +50% synergy
Beast Within
50% of 2 decks +11% synergy
Tragic Slip
29% of 7 decks +25% synergy
Malakir Rebirth
29% of 7 decks +20% synergy
Brainstorm
29% of 7 decks +7% synergy
Counterspell
29% of 7 decks -14% synergy
Black Sun's Twilight
20% of 5 decks +19% synergy
Sinister Sabotage
14% of 7 decks +14% synergy
Heartless Act
14% of 7 decks +14% synergy
Curate
14% of 7 decks +13% synergy
Songs of the Damned
14% of 7 decks +13% synergy
Soul Manipulation
14% of 7 decks +13% synergy
Otherworldly Gaze
14% of 7 decks +13% synergy
Lazotep Plating
14% of 7 decks +13% synergy
Supernatural Stamina
14% of 7 decks +12% synergy
Hagra Mauling
14% of 7 decks +12% synergy
Plumb the Forbidden
14% of 7 decks +11% synergy
Aetherize
14% of 7 decks +9% synergy
Consider
14% of 7 decks +8% synergy
Drown in the Loch
14% of 7 decks +8% synergy
Flusterstorm
14% of 7 decks +7% synergy
Go for the Throat
14% of 7 decks +7% synergy
Entomb
14% of 7 decks +7% synergy
Reality Shift
14% of 7 decks +5% synergy
Deadly Rollick
14% of 7 decks +4% synergy
Mystical Tutor
14% of 7 decks -1% synergy
Mana Drain
14% of 7 decks -1% synergy
Swan Song
14% of 7 decks -2% synergy
Fierce Guardianship
14% of 7 decks -4% synergy
Vampiric Tutor
14% of 7 decks -4% synergy
An Offer You Can't Refuse
14% of 7 decks -6% synergy
Dark Ritual
14% of 7 decks -8% synergy
Negate
14% of 7 decks -9% synergy
Cyclonic Rift
14% of 7 decks -14% synergy
Sorceries
Sevinne's Reclamation
100% of 1 decks +93% synergy
Spider Spawning
50% of 2 decks +49% synergy
Mythos of Brokkos
50% of 2 decks +48% synergy
Life from the Loam
50% of 2 decks +46% synergy
Bala Ged Recovery
50% of 2 decks +41% synergy
Dark Salvation
29% of 7 decks +28% synergy
Empty the Laboratory
29% of 7 decks +28% synergy
Zombie Apocalypse
29% of 7 decks +27% synergy
Living Death
29% of 7 decks +23% synergy
Bitter Ordeal
14% of 7 decks +14% synergy
Necrotic Hex
14% of 7 decks +14% synergy
Dark Petition
14% of 7 decks +13% synergy
Duress
14% of 7 decks +13% synergy
Yawgmoth's Will
14% of 7 decks +13% synergy
Army of the Damned
14% of 7 decks +12% synergy
Persist
14% of 7 decks +12% synergy
Ravenform
14% of 7 decks +11% synergy
Unearth
14% of 7 decks +11% synergy
Agadeem's Awakening
14% of 7 decks +11% synergy
Curse of the Swine
14% of 7 decks +10% synergy
Grim Tutor
14% of 7 decks +10% synergy
Distant Melody
14% of 7 decks +9% synergy
Buried Alive
14% of 7 decks +9% synergy
Diabolic Tutor
14% of 7 decks +8% synergy
Diabolic Intent
14% of 7 decks +5% synergy
Victimize
14% of 7 decks +3% synergy
Reanimate
14% of 7 decks -1% synergy
Toxic Deluge
14% of 7 decks -3% synergy
Feed the Swarm
14% of 7 decks -4% synergy
Demonic Tutor
14% of 7 decks -8% synergy
Utility Artifacts
Ashnod's Altar
43% of 7 decks +35% synergy
Skullclamp
43% of 7 decks +30% synergy
Altar of Dementia
29% of 7 decks +26% synergy
Phyrexian Altar
29% of 7 decks +25% synergy
Transmogrant's Crown
20% of 5 decks +19% synergy
Embalmer's Tools
14% of 7 decks +14% synergy
Neurok Stealthsuit
14% of 7 decks +14% synergy
Thrumming Stone
14% of 7 decks +14% synergy
Altar of the Brood
14% of 7 decks +13% synergy
Mesmeric Orb
14% of 7 decks +13% synergy
Moonsilver Key
14% of 7 decks +13% synergy
Thousand-Year Elixir
14% of 7 decks +12% synergy
Maskwood Nexus
14% of 7 decks +11% synergy
Panharmonicon
14% of 7 decks +10% synergy
Wishclaw Talisman
14% of 7 decks +9% synergy
Herald's Horn
14% of 7 decks +8% synergy
Wayfarer's Bauble
14% of 7 decks +4% synergy
Lightning Greaves
14% of 7 decks -11% synergy
Swiftfoot Boots
14% of 7 decks -14% synergy
Enchantments
Smothering Tithe
100% of 1 decks +75% synergy
Genesis of the Daleks
50% of 2 decks +49% synergy
Path of Discovery
50% of 2 decks +49% synergy
Cryptolith Rite
50% of 2 decks +46% synergy
Rooftop Storm
43% of 7 decks +41% synergy
Bastion of Remembrance
43% of 7 decks +37% synergy
Necroduality
29% of 7 decks +27% synergy
Grave Pact
29% of 7 decks +24% synergy
Agent of the Iron Throne
17% of 6 decks +14% synergy
Faces of the Past
14% of 7 decks +14% synergy
Tombstone Stairwell
14% of 7 decks +14% synergy
Dreadhorde Invasion
14% of 7 decks +12% synergy
Ominous Seas
14% of 7 decks +11% synergy
Black Market
14% of 7 decks +10% synergy
The Meathook Massacre
14% of 7 decks +9% synergy
Teferi's Ageless Insight
14% of 7 decks +9% synergy
Reflections of Littjara
14% of 7 decks +9% synergy
Mystic Remora
14% of 7 decks -4% synergy
Planeswalkers
Liliana, Untouched by Death
43% of 7 decks +42% synergy
Liliana, Death's Majesty
29% of 7 decks +27% synergy
Liliana, Dreadhorde General
14% of 7 decks +11% synergy
Utility Lands
Restless Reef
50% of 2 decks +46% synergy
Dryad Arbor
50% of 2 decks +46% synergy
Gaea's Cradle
50% of 2 decks +44% synergy
Alchemist's Refuge
50% of 2 decks +43% synergy
Boseiju, Who Endures
50% of 2 decks +30% synergy
Crypt of Agadeem
29% of 7 decks +27% synergy
Bojuka Bog
29% of 7 decks -2% synergy
Barad-dûr
25% of 4 decks +22% synergy
Unholy Grotto
14% of 7 decks +14% synergy
Ghost Quarter
14% of 7 decks +12% synergy
Creeping Tar Pit
14% of 7 decks +11% synergy
Field of the Dead
14% of 7 decks +11% synergy
Scavenger Grounds
14% of 7 decks +11% synergy
Witch's Cottage
14% of 7 decks +11% synergy
Mortuary Mire
14% of 7 decks +9% synergy
Castle Locthwain
14% of 7 decks +9% synergy
Phyrexian Tower
14% of 7 decks +6% synergy
Yavimaya, Cradle of Growth
14% of 7 decks +5% synergy
Urborg, Tomb of Yawgmoth
14% of 7 decks +4% synergy
Takenuma, Abandoned Mire
14% of 7 decks +4% synergy
Otawara, Soaring City
14% of 7 decks -3% synergy
Rogue's Passage
14% of 7 decks -5% synergy
Reliquary Tower
14% of 7 decks -15% synergy
Mana Artifacts
Talisman of Progress
100% of 1 decks +77% synergy
Talisman of Hierarchy
100% of 1 decks +75% synergy
Arcane Signet
86% of 7 decks +14% synergy
Sol Ring
71% of 7 decks -13% synergy
Dimir Signet
57% of 7 decks +27% synergy
Talisman of Dominance
57% of 7 decks +26% synergy
Crowded Crypt
29% of 7 decks +27% synergy
Liquimetal Torque
29% of 7 decks +25% synergy
Everflowing Chalice
29% of 7 decks +24% synergy
Sky Diamond
29% of 7 decks +23% synergy
Commander's Sphere
29% of 7 decks +13% synergy
Relic of Legends
20% of 5 decks +18% synergy
Decanter of Endless Water
17% of 6 decks +12% synergy
Charcoal Diamond
14% of 7 decks +9% synergy
Thought Vessel
14% of 7 decks -2% synergy
Mind Stone
14% of 7 decks -3% synergy
Fellwar Stone
14% of 7 decks -7% synergy
Lands
Deathcap Glade
100% of 2 decks +86% synergy
Breeding Pool
100% of 2 decks +59% synergy
Overgrown Tomb
100% of 2 decks +57% synergy
Command Tower
86% of 7 decks +12% synergy
Secret Passage
50% of 2 decks +50% synergy
Dreamroot Cascade
50% of 2 decks +31% synergy
Undergrowth Stadium
50% of 2 decks +24% synergy
Rejuvenating Springs
50% of 2 decks +21% synergy
Zagoth Triome
50% of 2 decks +19% synergy
Tainted Isle
43% of 7 decks +32% synergy
Polluted Delta
43% of 7 decks +32% synergy
Shipwreck Marsh
43% of 7 decks +24% synergy
Sunken Hollow
43% of 7 decks +8% synergy
Exotic Orchard
43% of 7 decks +7% synergy
Verdant Catacombs
29% of 7 decks +17% synergy
Misty Rainforest
29% of 7 decks +17% synergy
Darkwater Catacombs
29% of 7 decks +14% synergy
Temple of Deceit
29% of 7 decks +12% synergy
Choked Estuary
29% of 7 decks +12% synergy
Myriad Landscape
29% of 7 decks +9% synergy
Watery Grave
29% of 7 decks -12% synergy
Jwar Isle Refuge
14% of 7 decks +12% synergy
Forbidden Orchard
14% of 7 decks +11% synergy
River of Tears
14% of 7 decks +11% synergy
Secluded Courtyard
14% of 7 decks +10% synergy
Unclaimed Territory
14% of 7 decks +9% synergy
Reflecting Pool
14% of 7 decks +9% synergy
Fetid Pools
14% of 7 decks +9% synergy
Cavern of Souls
14% of 7 decks +7% synergy
Mana Confluence
14% of 7 decks +7% synergy
City of Brass
14% of 7 decks +6% synergy
Fabled Passage
14% of 7 decks +5% synergy
Flooded Strand
14% of 7 decks +4% synergy
Scalding Tarn
14% of 7 decks +3% synergy
Marsh Flats
14% of 7 decks +3% synergy
Underground Sea
14% of 7 decks +0% synergy
Dimir Aqueduct
14% of 7 decks -3% synergy
Underground River
14% of 7 decks -5% synergy
Path of Ancestry
14% of 7 decks -7% synergy
Drowned Catacomb
14% of 7 decks -11% synergy
Morphic Pool
14% of 7 decks -12% synergy