Eternal Scourge + Nightmare Shepherd + Ashnod's Altar

Eternal Scourge
Nightmare Shepherd
Ashnod's Altar

Requires
Eternal Scourge must be on the battlefield. Nightmare Shepherd must be on the battlefield. Ashnod's Altar must be on the battlefield.
Steps
  1. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding cc.
  2. Nightmare Shepherd triggers.
  3. Resolve the Nightmare Shepherd trigger, exiling Eternal Scourge from your graveyard and creating a 1/1 copy of Eternal Scourge that is a Nightmare in addition to its other types.
  4. Activate Ashnod's Altar by sacrificing the Eternal Scourge token, adding cc.
  5. Cast Eternal Scourge from exile by paying 3.
  6. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite storm count.

Top Commanders (1)
Umbris, Fear Manifest
0.25% of 5557 decks 14 decks
High Synergy Cards (1)
Torrent Elemental
100% of 4 decks +100% synergy
Top Cards (10)
Chaos Warp
80% of 5 decks +64% synergy
Assassin's Trophy
67% of 6 decks +60% synergy
Ashiok, Dream Render
62% of 21 decks +61% synergy
Captain N'ghathrod
60% of 15 decks +60% synergy
Tasha's Hideous Laughter
55% of 20 decks +54% synergy
Hullbreaker Horror
53% of 17 decks +49% synergy
Ashiok, Nightmare Muse
52% of 21 decks +52% synergy
Grazilaxx, Illithid Scholar
50% of 20 decks +49% synergy
Spellskite
48% of 21 decks +46% synergy
Zellix, Sanity Flayer
47% of 15 decks +46% synergy
Creatures (50)
Thermopod
60% of 5 decks +60% synergy
Birgi, God of Storytelling
60% of 5 decks +57% synergy
Birds of Paradise
50% of 6 decks +38% synergy
Sludge Monster
44% of 18 decks +44% synergy
Sire of Stagnation
43% of 21 decks +42% synergy
Uchuulon
43% of 21 decks +42% synergy
Aboleth Spawn
40% of 15 decks +39% synergy
Toxrill, the Corrosive
39% of 18 decks +38% synergy
Ravenous Chupacabra
37% of 30 decks +34% synergy
Dauthi Voidwalker
36% of 28 decks +31% synergy
Grell Philosopher
33% of 15 decks +33% synergy
Consuming Aberration
33% of 21 decks +32% synergy
Overcharged Amalgam
29% of 17 decks +29% synergy
Thing in the Ice
29% of 21 decks +28% synergy
Wharf Infiltrator
29% of 21 decks +28% synergy
Sifter of Skulls
27% of 30 decks +26% synergy
Phenax, God of Deception
24% of 21 decks +23% synergy
Nemesis of Reason
24% of 21 decks +23% synergy
Chasm Skulker
24% of 21 decks +22% synergy
Yarok's Fenlurker
23% of 30 decks +23% synergy
Phyrexian Revoker
23% of 30 decks +23% synergy
Oblivion Sower
23% of 30 decks +23% synergy
Pawn of Ulamog
23% of 30 decks +22% synergy
Viscera Seer
23% of 30 decks +18% synergy
Hell's Caretaker
20% of 30 decks +20% synergy
Phyrexian Rager
20% of 30 decks +20% synergy
Defiler of Flesh
20% of 15 decks +19% synergy
Gravecrawler
20% of 30 decks +19% synergy
Zulaport Cutthroat
20% of 30 decks +14% synergy
Brainstealer Dragon
19% of 21 decks +18% synergy
Elder Brain
19% of 21 decks +18% synergy
Deadeye Navigator
19% of 21 decks +18% synergy
Thassa, Deep-Dwelling
19% of 21 decks +17% synergy
Spark Double
19% of 21 decks +15% synergy
Braids, Arisen Nightmare
19% of 16 decks +14% synergy
Erebos, Bleak-Hearted
17% of 30 decks +16% synergy
Phyrexian Obliterator
17% of 30 decks +16% synergy
Dread Presence
17% of 30 decks +16% synergy
Woe Strider
17% of 30 decks +15% synergy
Ayara, First of Locthwain
17% of 30 decks +15% synergy
Carrion Feeder
17% of 30 decks +14% synergy
Blood Artist
17% of 30 decks +10% synergy
Prowling Geistcatcher
15% of 26 decks +15% synergy
Sage of the Beyond
15% of 20 decks +15% synergy
Sakashima of a Thousand Faces
15% of 20 decks +13% synergy
Misthollow Griffin
14% of 21 decks +14% synergy
Falthis, Shadowcat Familiar
14% of 28 decks +14% synergy
Intellect Devourer
14% of 21 decks +14% synergy
Forgotten Creation
14% of 21 decks +14% synergy
Trophy Mage
14% of 21 decks +13% synergy
Instants (28)
Heroic Intervention
50% of 6 decks +36% synergy
Dark Ritual
47% of 30 decks +36% synergy
Cyclonic Rift
43% of 21 decks +29% synergy
Resculpt
40% of 20 decks +37% synergy
Vampiric Tutor
33% of 30 decks +23% synergy
Reality Shift
24% of 21 decks +19% synergy
Fierce Guardianship
24% of 21 decks +15% synergy
Brainstorm
24% of 21 decks +12% synergy
Counterspell
24% of 21 decks +3% synergy
Malakir Rebirth
21% of 29 decks +16% synergy
Deadly Rollick
21% of 29 decks +16% synergy
Mana Drain
19% of 21 decks +11% synergy
Mystical Tutor
19% of 21 decks +11% synergy
Arcane Denial
19% of 21 decks +10% synergy
Negate
19% of 21 decks +8% synergy
Drown in Dreams
17% of 18 decks +16% synergy
Perplex
14% of 21 decks +14% synergy
Displace
14% of 21 decks +13% synergy
Baleful Mastery
14% of 28 decks +13% synergy
Ghostly Flicker
14% of 21 decks +12% synergy
Muddle the Mixture
14% of 21 decks +12% synergy
Force of Will
14% of 21 decks +9% synergy
Swan Song
14% of 21 decks +6% synergy
Infernal Grasp
12% of 26 decks +7% synergy
Vraska's Contempt
10% of 30 decks +10% synergy
Defile
10% of 30 decks +8% synergy
Tainted Pact
10% of 30 decks +8% synergy
Entomb
10% of 30 decks +6% synergy
Sorceries (31)
Jeska's Will
60% of 5 decks +51% synergy
Three Visits
50% of 6 decks +38% synergy
Nature's Lore
50% of 6 decks +35% synergy
Farseek
50% of 6 decks +34% synergy
Demonic Tutor
40% of 30 decks +28% synergy
Maddening Cacophony
38% of 21 decks +37% synergy
Curse of the Swine
29% of 21 decks +26% synergy
Toxic Deluge
27% of 30 decks +18% synergy
Feed the Swarm
21% of 29 decks +11% synergy
Foresight
19% of 21 decks +19% synergy
Manipulate Fate
19% of 21 decks +19% synergy
Extract
19% of 21 decks +19% synergy
Sea Gate Restoration
19% of 21 decks +16% synergy
Yawgmoth's Will
17% of 30 decks +16% synergy
Grim Tutor
17% of 30 decks +14% synergy
Fractured Sanity
15% of 20 decks +14% synergy
Ravenform
15% of 20 decks +13% synergy
Selective Memory
14% of 21 decks +14% synergy
Call of the Nightwing
14% of 21 decks +14% synergy
Rite of Replication
14% of 21 decks +12% synergy
Preordain
14% of 21 decks +8% synergy
Windfall
14% of 21 decks +7% synergy
Praetor's Grasp
13% of 30 decks +12% synergy
Buried Alive
13% of 30 decks +11% synergy
Sign in Blood
13% of 30 decks +8% synergy
Victimize
13% of 30 decks +7% synergy
Reanimate
13% of 30 decks +6% synergy
Profane Tutor
11% of 28 decks +9% synergy
Agadeem's Awakening
10% of 29 decks +8% synergy
Diabolic Tutor
10% of 30 decks +6% synergy
Damnation
10% of 30 decks +5% synergy
Utility Artifacts (26)
Lightning Greaves
43% of 30 decks +18% synergy
Phyrexian Altar
37% of 30 decks +32% synergy
Synthesis Pod
33% of 9 decks +33% synergy
Whispersilk Cloak
27% of 30 decks +23% synergy
Panharmonicon
27% of 30 decks +22% synergy
Mimic Vat
23% of 30 decks +22% synergy
Bolas's Citadel
20% of 30 decks +15% synergy
Swiftfoot Boots
20% of 30 decks -8% synergy
Mindcrank
17% of 30 decks +15% synergy
Altar of Dementia
17% of 30 decks +14% synergy
Bag of Devouring
14% of 28 decks +14% synergy
Altar of Bhaal
14% of 21 decks +14% synergy
Helm of Obedience
13% of 30 decks +13% synergy
Tormod's Crypt
13% of 30 decks +12% synergy
Wayfarer's Bauble
13% of 30 decks +2% synergy
Sentinel Totem
10% of 30 decks +10% synergy
Relic of Progenitus
10% of 30 decks +10% synergy
Nim Deathmantle
10% of 30 decks +9% synergy
Soul-Guide Lantern
10% of 30 decks +9% synergy
Cloud Key
10% of 30 decks +8% synergy
Bontu's Monument
10% of 30 decks +8% synergy
Conjurer's Closet
10% of 30 decks +8% synergy
Shadowspear
10% of 30 decks +6% synergy
Aetherflux Reservoir
10% of 30 decks +6% synergy
Sensei's Divining Top
10% of 30 decks +4% synergy
Skullclamp
10% of 30 decks -3% synergy
Enchantments (19)
Titans' Nest
75% of 4 decks +75% synergy
Goblin Bombardment
60% of 5 decks +57% synergy
Curse of Clinging Webs
50% of 6 decks +50% synergy
Rhystic Study
43% of 21 decks +29% synergy
Leyline of the Void
33% of 30 decks +33% synergy
Black Market Connections
29% of 21 decks +23% synergy
Planar Void
27% of 30 decks +27% synergy
Endless Evil
27% of 15 decks +26% synergy
Necropotence
20% of 30 decks +17% synergy
Court of Cunning
15% of 20 decks +14% synergy
Phyrexian Reclamation
13% of 30 decks +11% synergy
Kaya's Ghostform
13% of 30 decks +11% synergy
Animate Dead
13% of 30 decks +8% synergy
Cunning Rhetoric
11% of 28 decks +10% synergy
Bastion of Remembrance
10% of 29 decks +7% synergy
Bloodchief Ascension
10% of 30 decks +9% synergy
Black Market
10% of 30 decks +8% synergy
Exquisite Blood
10% of 30 decks +8% synergy
Phyrexian Arena
10% of 30 decks +3% synergy
Planeswalkers (3)
Ashiok, Wicked Manipulator
44% of 9 decks +44% synergy
Ashiok, Nightmare Weaver
19% of 21 decks +19% synergy
Liliana, Dreadhorde General
10% of 30 decks +8% synergy
Utility Lands (21)
Bojuka Bog
70% of 30 decks +54% synergy
Boseiju, Who Endures
60% of 5 decks +51% synergy
Urborg, Tomb of Yawgmoth
43% of 30 decks +33% synergy
Cabal Coffers
33% of 30 decks +27% synergy
Otawara, Soaring City
33% of 15 decks +25% synergy
Rogue's Passage
33% of 30 decks +15% synergy
Reliquary Tower
30% of 30 decks +2% synergy
Takenuma, Abandoned Mire
23% of 22 decks +17% synergy
Phyrexian Tower
20% of 30 decks +16% synergy
Mystic Sanctuary
19% of 21 decks +13% synergy
Shizo, Death's Storehouse
17% of 30 decks +14% synergy
Command Beacon
17% of 30 decks +12% synergy
Ancient Tomb
17% of 30 decks +6% synergy
Yavimaya, Cradle of Growth
14% of 28 decks +5% synergy
Barren Moor
13% of 30 decks +11% synergy
Castle Locthwain
13% of 30 decks +10% synergy
Scavenger Grounds
13% of 30 decks +10% synergy
City of Shadows
10% of 30 decks +10% synergy
Eye of Ugin
10% of 30 decks +9% synergy
Thespian's Stage
10% of 30 decks +7% synergy
Temple of the False God
10% of 30 decks +0% synergy
Mana Artifacts (12)
Sol Ring
83% of 30 decks -1% synergy
Arcane Signet
70% of 30 decks -1% synergy
Dimir Signet
52% of 21 decks +44% synergy
Talisman of Dominance
33% of 21 decks +26% synergy
Mind Stone
27% of 30 decks +8% synergy
Thought Vessel
23% of 30 decks +8% synergy
Mana Crypt
20% of 30 decks +9% synergy
Fellwar Stone
20% of 30 decks -1% synergy
Jeweled Lotus
14% of 28 decks +7% synergy
Sol Talisman
11% of 28 decks +10% synergy
Thran Dynamo
10% of 30 decks +5% synergy
Everflowing Chalice
10% of 30 decks +5% synergy
Lands (34)
Overgrown Tomb
83% of 6 decks +74% synergy
Command Tower
80% of 30 decks +7% synergy
Tropical Island
75% of 4 decks +72% synergy
Volcanic Island
75% of 4 decks +72% synergy
Zagoth Triome
75% of 4 decks +71% synergy
Watery Grave
71% of 21 decks +61% synergy
Llanowar Wastes
50% of 6 decks +45% synergy
Sunken Hollow
48% of 21 decks +39% synergy
Underground River
43% of 21 decks +39% synergy
Drowned Catacomb
43% of 21 decks +37% synergy
Morphic Pool
38% of 21 decks +31% synergy
Shipwreck Marsh
35% of 20 decks +30% synergy
Fetid Pools
33% of 21 decks +32% synergy
Dimir Aqueduct
33% of 21 decks +29% synergy
Exotic Orchard
33% of 30 decks -1% synergy
Path of Ancestry
30% of 30 decks +10% synergy
Tainted Isle
29% of 21 decks +26% synergy
Clearwater Pathway
29% of 21 decks +26% synergy
Choked Estuary
29% of 21 decks +24% synergy
Polluted Delta
27% of 30 decks +16% synergy
Sunken Ruins
24% of 21 decks +22% synergy
Temple of Deceit
24% of 21 decks +20% synergy
Plaza of Heroes
20% of 15 decks +16% synergy
Terramorphic Expanse
20% of 30 decks +4% synergy
Myriad Landscape
20% of 30 decks -1% synergy
Evolving Wilds
20% of 30 decks -2% synergy
Darkwater Catacombs
19% of 21 decks +15% synergy
Darkslick Shores
14% of 21 decks +13% synergy
Reflecting Pool
13% of 30 decks +8% synergy
Fabled Passage
13% of 30 decks +4% synergy
Verdant Catacombs
13% of 30 decks +2% synergy
Forbidden Orchard
10% of 30 decks +7% synergy
Cavern of Souls
10% of 30 decks +4% synergy
Misty Rainforest
10% of 30 decks -2% synergy