Eternal Scourge + Ashnod's Altar + Mimic Vat + Sifter of Skulls

Eternal Scourge
Ashnod's Altar
Mimic Vat
Sifter of Skulls

Requires
Eternal Scourge must be on the battlefield. Ashnod's Altar must be on the battlefield. Mimic Vat must be on the battlefield. Sifter of Skulls must be on the battlefield.
Steps
  1. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding .
  2. When Eternal Scourge dies, Sifter of Skulls and Mimic Vat trigger.
  3. Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion creature token.
  4. Resolve the Mimic Vat trigger, exiling Eternal Scourge from your graveyard.
  5. Activate the Eldrazi Scion by sacrificing it, adding .
  6. Cast Eternal Scourge from exile by paying 3.
  7. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite storm count.

Umbris, Fear Manifest
0.02% of 5828 decks 1 decks
Creatures
Pawn of Ulamog
100% of 1 decks +100% synergy
Misery's Shadow
100% of 1 decks +99% synergy
Trophy Mage
100% of 1 decks +99% synergy
Oblivion Sower
100% of 1 decks +99% synergy
Nightmare Shepherd
100% of 1 decks +98% synergy
Defiler of Flesh
100% of 1 decks +98% synergy
Phyrexian Revoker
100% of 1 decks +97% synergy
Braids, Arisen Nightmare
100% of 1 decks +97% synergy
Thing in the Ice
100% of 1 decks +97% synergy
Captain N'ghathrod
100% of 1 decks +96% synergy
Sire of Stagnation
100% of 1 decks +95% synergy
Forgotten Creation
100% of 1 decks +95% synergy
Wharf Infiltrator
100% of 1 decks +95% synergy
Uchuulon
100% of 1 decks +93% synergy
Toxrill, the Corrosive
100% of 1 decks +93% synergy
Spellskite
100% of 1 decks +92% synergy
Zellix, Sanity Flayer
100% of 1 decks +91% synergy
Spark Double
100% of 1 decks +89% synergy
Grazilaxx, Illithid Scholar
100% of 1 decks +88% synergy
Consuming Aberration
100% of 1 decks +85% synergy
Instants
Stubborn Denial
100% of 1 decks +99% synergy
Dimir Charm
100% of 1 decks +98% synergy
Baleful Mastery
100% of 1 decks +95% synergy
Resculpt
100% of 1 decks +91% synergy
Reality Shift
100% of 1 decks +84% synergy
Swan Song
100% of 1 decks +82% synergy
An Offer You Can't Refuse
100% of 1 decks +72% synergy
Cyclonic Rift
100% of 1 decks +72% synergy
Dark Ritual
100% of 1 decks +67% synergy
Brainstorm
100% of 1 decks +67% synergy
Sorceries
Call of the Nightwing
100% of 1 decks +99% synergy
Curse of the Swine
100% of 1 decks +96% synergy
Ravenform
100% of 1 decks +96% synergy
Rite of Replication
100% of 1 decks +96% synergy
Tasha's Hideous Laughter
100% of 1 decks +94% synergy
Irenicus's Vile Duplication
100% of 1 decks +93% synergy
Toxic Deluge
100% of 1 decks +75% synergy
Feed the Swarm
100% of 1 decks +59% synergy
Utility Artifacts
Trailblazer's Boots
100% of 1 decks +99% synergy
Tormod's Crypt
100% of 1 decks +98% synergy
Winged Boots
100% of 1 decks +98% synergy
Whispersilk Cloak
100% of 1 decks +93% synergy
Swiftfoot Boots
100% of 1 decks +75% synergy
Lightning Greaves
100% of 1 decks +72% synergy
Enchantments
Ashiok's Erasure
100% of 1 decks +100% synergy
Planar Void
100% of 1 decks +99% synergy
Call of the Ring
100% of 1 decks +94% synergy
Black Market Connections
100% of 1 decks +90% synergy
Phyrexian Arena
100% of 1 decks +88% synergy
Mystic Remora
100% of 1 decks +83% synergy
Planeswalkers
Ashiok, Wicked Manipulator
100% of 1 decks +99% synergy
Ashiok, Sculptor of Fears
100% of 1 decks +98% synergy
Ashiok, Nightmare Weaver
100% of 1 decks +98% synergy
Ashiok, Nightmare Muse
100% of 1 decks +96% synergy
Ashiok, Dream Render
100% of 1 decks +92% synergy
Utility Lands
Command Beacon
100% of 1 decks +96% synergy
Shizo, Death's Storehouse
100% of 1 decks +91% synergy
Rogue's Passage
100% of 1 decks +72% synergy
Reliquary Tower
100% of 1 decks +65% synergy
Bojuka Bog
100% of 1 decks +60% synergy
Mana Artifacts
Staff of Compleation
100% of 1 decks +98% synergy
Dimir Signet
100% of 1 decks +35% synergy
Arcane Signet
100% of 1 decks +15% synergy
Sol Ring
100% of 1 decks +11% synergy
Lands
Reflecting Pool
100% of 1 decks +95% synergy
Dimir Guildgate
100% of 1 decks +93% synergy
Path of Ancestry
100% of 1 decks +71% synergy
Dimir Aqueduct
100% of 1 decks +58% synergy
Drowned Catacomb
100% of 1 decks +52% synergy
Choked Estuary
100% of 1 decks +51% synergy
Sunken Hollow
100% of 1 decks +32% synergy
Command Tower
100% of 1 decks +11% synergy