Retribution of the Ancients + Phyrexian Altar + Sightless Ghoul

Retribution of the Ancients
Phyrexian Altar
Sightless Ghoul

Requires
All permanents on the battlefield. Sightless Ghoul has no +1/+1 counters on it.
Steps
  1. Activate Phyrexian Altar by sacrificing Sightless Ghoul, adding b.
  2. Sightless Ghoul dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. Activate Retribution of the Ancients by paying b and removing a +1/+1 counter from Sightless Ghoul, giving any creature -1/-1 until end of turn.
  4. Repeat.
Results
Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Reduce any number of target creatures' toughness to zero.

Top Commanders (4)
Elas il-Kor, Sadistic Pilgrim
0.06% of 4953 decks 3 decks
Yawgmoth, Thran Physician
0.06% of 5312 decks 3 decks
Ghave, Guru of Spores
0.04% of 5535 decks 2 decks
Meren of Clan Nel Toth
0.01% of 11936 decks 1 decks
Top Cards (10)
Evernight Shade
89% of 9 decks +89% synergy
Pitiless Plunderer
89% of 9 decks +85% synergy
Viscera Seer
78% of 9 decks +72% synergy
Ashnod's Altar
78% of 9 decks +70% synergy
Putrid Goblin
67% of 9 decks +66% synergy
Geralf's Messenger
67% of 9 decks +66% synergy
Thran Vigil
67% of 6 decks +66% synergy
Butcher Ghoul
56% of 9 decks +55% synergy
Gravecrawler
56% of 9 decks +54% synergy
Village Rites
56% of 9 decks +50% synergy
Creatures (50)
Safehold Elite
100% of 2 decks +100% synergy
Strangleroot Geist
100% of 3 decks +100% synergy
Kitchen Finks
100% of 2 decks +100% synergy
Haywire Mite
100% of 1 decks +98% synergy
Rendclaw Trow
67% of 3 decks +67% synergy
Aerie Ouphes
67% of 3 decks +67% synergy
Vorapede
67% of 3 decks +66% synergy
Young Wolf
67% of 3 decks +66% synergy
Drivnod, Carnage Dominus
67% of 3 decks +64% synergy
Twilight Shepherd
60% of 5 decks +60% synergy
Zulaport Cutthroat
56% of 9 decks +50% synergy
Heartmender
50% of 2 decks +50% synergy
Baba Lysaga, Night Witch
50% of 2 decks +50% synergy
Hierophant Bio-Titan
50% of 2 decks +50% synergy
Juniper Order Ranger
50% of 2 decks +50% synergy
Good-Fortune Unicorn
50% of 2 decks +49% synergy
Avacyn's Pilgrim
50% of 2 decks +46% synergy
Lesser Masticore
44% of 9 decks +44% synergy
Puppeteer Clique
44% of 9 decks +44% synergy
Pawn of Ulamog
44% of 9 decks +43% synergy
Mikaeus, the Unhallowed
44% of 9 decks +43% synergy
Reassembling Skeleton
44% of 9 decks +42% synergy
Grim Haruspex
44% of 9 decks +42% synergy
Blood Artist
44% of 9 decks +38% synergy
Restless Apparition
40% of 5 decks +40% synergy
Odric's Outrider
40% of 5 decks +40% synergy
Wayward Servant
40% of 5 decks +40% synergy
Heliod, Sun-Crowned
40% of 5 decks +38% synergy
Spike Rogue
33% of 3 decks +33% synergy
Howlgeist
33% of 3 decks +33% synergy
Melira, Sylvok Outcast
33% of 3 decks +33% synergy
Viridian Emissary
33% of 3 decks +33% synergy
Bloodspore Thrinax
33% of 3 decks +33% synergy
Yisan, the Wanderer Bard
33% of 3 decks +33% synergy
Deathgreeter
33% of 9 decks +33% synergy
Old Rutstein
33% of 3 decks +33% synergy
Shambling Ghast
33% of 9 decks +33% synergy
Old Stickfingers
33% of 3 decks +33% synergy
Woodfall Primus
33% of 3 decks +33% synergy
Underrealm Lich
33% of 3 decks +32% synergy
Ivy Lane Denizen
33% of 3 decks +32% synergy
Protean Hulk
33% of 3 decks +32% synergy
Poison-Tip Archer
33% of 3 decks +32% synergy
Devoted Druid
33% of 3 decks +32% synergy
Fertilid
33% of 3 decks +32% synergy
Elves of Deep Shadow
33% of 3 decks +30% synergy
Carrion Feeder
33% of 9 decks +30% synergy
Champion of Lambholt
33% of 3 decks +30% synergy
Arbor Elf
33% of 3 decks +29% synergy
Wood Elves
33% of 3 decks +29% synergy
Instants (39)
Assassin's Trophy
67% of 3 decks +61% synergy
Vampiric Tutor
56% of 9 decks +45% synergy
Abzan Charm
50% of 2 decks +49% synergy
Dark Ritual
44% of 9 decks +34% synergy
Safe Passage
40% of 5 decks +40% synergy
Revitalize
40% of 5 decks +40% synergy
Swords to Plowshares
40% of 5 decks +12% synergy
Chord of Calling
33% of 3 decks +30% synergy
Inspiring Call
33% of 3 decks +30% synergy
Veil of Summer
33% of 3 decks +30% synergy
Deadly Rollick
33% of 9 decks +29% synergy
Malakir Rebirth
33% of 9 decks +29% synergy
Deadly Dispute
33% of 9 decks +28% synergy
Scarab Feast
22% of 9 decks +22% synergy
Unexpected Fangs
22% of 9 decks +22% synergy
Gravepurge
22% of 9 decks +22% synergy
Tragic Slip
22% of 9 decks +20% synergy
Anguished Unmaking
20% of 5 decks +14% synergy
Path to Exile
20% of 5 decks +2% synergy
Body Count
12% of 8 decks +12% synergy
Plunge into Darkness
11% of 9 decks +11% synergy
Terror
11% of 9 decks +11% synergy
Malicious Affliction
11% of 9 decks +11% synergy
Darkness
11% of 9 decks +11% synergy
Undying Evil
11% of 9 decks +11% synergy
Altar's Reap
11% of 9 decks +10% synergy
Costly Plunder
11% of 9 decks +10% synergy
Reckoner's Bargain
11% of 9 decks +10% synergy
Doom Blade
11% of 9 decks +10% synergy
Snuff Out
11% of 9 decks +10% synergy
Hagra Mauling
11% of 9 decks +10% synergy
Soul Shatter
11% of 9 decks +10% synergy
Baleful Mastery
11% of 9 decks +9% synergy
Culling the Weak
11% of 9 decks +9% synergy
Ad Nauseam
11% of 9 decks +9% synergy
Plumb the Forbidden
11% of 9 decks +9% synergy
Go for the Throat
11% of 9 decks +8% synergy
Entomb
11% of 9 decks +7% synergy
Infernal Grasp
11% of 9 decks +6% synergy
Sorceries (37)
Farseek
67% of 3 decks +52% synergy
Rampant Growth
67% of 3 decks +50% synergy
Unearth
44% of 9 decks +43% synergy
Sign in Blood
44% of 9 decks +39% synergy
Damn
40% of 5 decks +36% synergy
Mulch
33% of 3 decks +33% synergy
Primal Growth
33% of 3 decks +33% synergy
Dig Up
33% of 3 decks +32% synergy
Culling Ritual
33% of 3 decks +31% synergy
Diabolic Tutor
33% of 9 decks +29% synergy
Victimize
33% of 9 decks +27% synergy
Reanimate
33% of 9 decks +26% synergy
Three Visits
33% of 3 decks +22% synergy
Cut of the Profits
25% of 8 decks +25% synergy
Plague of Vermin
22% of 9 decks +22% synergy
Final Parting
22% of 9 decks +21% synergy
Peer into the Abyss
22% of 9 decks +20% synergy
Imperial Seal
22% of 9 decks +19% synergy
Night's Whisper
22% of 9 decks +17% synergy
Read the Bones
22% of 9 decks +17% synergy
Feed the Swarm
22% of 9 decks +13% synergy
Demonic Tutor
22% of 9 decks +9% synergy
Martial Coup
20% of 5 decks +19% synergy
Austere Command
20% of 5 decks +14% synergy
Blood Money
12% of 8 decks +11% synergy
Dead of Winter
11% of 9 decks +11% synergy
Bone Splinters
11% of 9 decks +11% synergy
Blood on the Snow
11% of 9 decks +11% synergy
Bubbling Muck
11% of 9 decks +10% synergy
Black Sun's Zenith
11% of 9 decks +10% synergy
Bone Shards
11% of 9 decks +10% synergy
In Garruk's Wake
11% of 9 decks +9% synergy
Agadeem's Awakening
11% of 9 decks +9% synergy
Exsanguinate
11% of 9 decks +8% synergy
Torment of Hailfire
11% of 9 decks +8% synergy
Diabolic Intent
11% of 9 decks +7% synergy
Damnation
11% of 9 decks +6% synergy
Utility Artifacts (25)
Birthing Pod
67% of 3 decks +65% synergy
Bolas's Citadel
44% of 9 decks +39% synergy
Skullclamp
44% of 9 decks +31% synergy
Cauldron of Souls
33% of 9 decks +33% synergy
Horn of Valhalla
25% of 4 decks +24% synergy
Blasting Station
22% of 9 decks +22% synergy
Mind's Eye
22% of 9 decks +21% synergy
Jet Medallion
22% of 9 decks +20% synergy
Expedition Map
22% of 9 decks +18% synergy
Lightning Greaves
22% of 9 decks -3% synergy
Portal to Phyrexia
17% of 6 decks +14% synergy
Embalmer's Tools
11% of 9 decks +11% synergy
Profane Memento
11% of 9 decks +11% synergy
Animation Module
11% of 9 decks +11% synergy
Desecrated Tomb
11% of 9 decks +11% synergy
Spawning Pit
11% of 9 decks +11% synergy
Perpetual Timepiece
11% of 9 decks +10% synergy
Eldrazi Monument
11% of 9 decks +10% synergy
Blade of Selves
11% of 9 decks +10% synergy
Bontu's Monument
11% of 9 decks +9% synergy
Altar of Dementia
11% of 9 decks +8% synergy
The Ozolith
11% of 9 decks +8% synergy
Whispersilk Cloak
11% of 9 decks +7% synergy
Sensei's Divining Top
11% of 9 decks +5% synergy
Swiftfoot Boots
11% of 9 decks -17% synergy
Enchantments (43)
Fecundity
67% of 3 decks +66% synergy
Wilderness Reclamation
67% of 3 decks +65% synergy
Solemnity
60% of 5 decks +60% synergy
Cloakwood Hermit
50% of 2 decks +50% synergy
Aura Shards
50% of 2 decks +48% synergy
Black Market
44% of 9 decks +42% synergy
Bastion of Remembrance
44% of 9 decks +41% synergy
Fanatical Devotion
40% of 5 decks +39% synergy
Ghostly Prison
40% of 5 decks +34% synergy
Agent of the Iron Throne
38% of 8 decks +36% synergy
Nest of Scarabs
33% of 9 decks +33% synergy
Journey to Eternity
33% of 3 decks +32% synergy
Deathreap Ritual
33% of 3 decks +32% synergy
Moldervine Reclamation
33% of 3 decks +31% synergy
Phyrexian Arena
33% of 9 decks +26% synergy
Life Insurance
25% of 4 decks +24% synergy
Black Market Connections
25% of 8 decks +19% synergy
Strands of Undeath
22% of 9 decks +22% synergy
Screams from Within
22% of 9 decks +22% synergy
Grave Betrayal
22% of 9 decks +22% synergy
Dark Prophecy
22% of 9 decks +22% synergy
Underworld Dreams
22% of 9 decks +21% synergy
Grave Pact
22% of 9 decks +20% synergy
The Meathook Massacre
22% of 9 decks +19% synergy
Martyr's Cause
20% of 5 decks +20% synergy
Together Forever
20% of 5 decks +19% synergy
Cathars' Crusade
20% of 5 decks +17% synergy
Scion of Halaster
12% of 8 decks +12% synergy
Haunted One
12% of 8 decks +12% synergy
No Rest for the Wicked
11% of 9 decks +11% synergy
Carnival of Souls
11% of 9 decks +11% synergy
Blowfly Infestation
11% of 9 decks +11% synergy
Contamination
11% of 9 decks +11% synergy
Font of Agonies
11% of 9 decks +11% synergy
Blight Mound
11% of 9 decks +11% synergy
Oubliette
11% of 9 decks +10% synergy
Wound Reflection
11% of 9 decks +10% synergy
Waste Not
11% of 9 decks +10% synergy
Bitterblossom
11% of 9 decks +9% synergy
Phyrexian Reclamation
11% of 9 decks +9% synergy
Dictate of Erebos
11% of 9 decks +9% synergy
Necropotence
11% of 9 decks +8% synergy
Sanguine Bond
11% of 9 decks +8% synergy
Planeswalkers (3)
Grist, the Hunger Tide
33% of 3 decks +33% synergy
Vraska, Golgari Queen
33% of 3 decks +33% synergy
Lolth, Spider Queen
11% of 9 decks +10% synergy
Utility Lands (27)
Grim Backwoods
67% of 3 decks +66% synergy
Gavony Township
50% of 2 decks +48% synergy
Cabal Coffers
44% of 9 decks +38% synergy
Witch's Cottage
33% of 9 decks +31% synergy
Phyrexian Tower
33% of 9 decks +29% synergy
Boseiju, Who Endures
33% of 3 decks +24% synergy
Urborg, Tomb of Yawgmoth
33% of 9 decks +22% synergy
Volrath's Stronghold
22% of 9 decks +21% synergy
Cabal Stronghold
22% of 9 decks +20% synergy
Karn's Bastion
22% of 9 decks +17% synergy
Nykthos, Shrine to Nyx
22% of 9 decks +16% synergy
Reliquary Tower
22% of 9 decks -5% synergy
City of Shadows
11% of 9 decks +11% synergy
Everglades
11% of 9 decks +11% synergy
Grasping Dunes
11% of 9 decks +11% synergy
Deserted Temple
11% of 9 decks +11% synergy
Nesting Grounds
11% of 9 decks +10% synergy
Vesuva
11% of 9 decks +10% synergy
Blast Zone
11% of 9 decks +10% synergy
Arcane Lighthouse
11% of 9 decks +10% synergy
Thespian's Stage
11% of 9 decks +8% synergy
Mortuary Mire
11% of 9 decks +8% synergy
Field of the Dead
11% of 9 decks +7% synergy
Takenuma, Abandoned Mire
11% of 9 decks +4% synergy
Urza's Saga
11% of 9 decks +4% synergy
Ancient Tomb
11% of 9 decks +0% synergy
Bojuka Bog
11% of 9 decks -5% synergy
Mana Artifacts (21)
Energy Refractor
100% of 3 decks +100% synergy
Wand of the Worldsoul
100% of 1 decks +99% synergy
Sol Ring
100% of 9 decks +16% synergy
Arcane Signet
89% of 9 decks +20% synergy
Marble Diamond
60% of 5 decks +58% synergy
Commander's Sphere
44% of 9 decks +27% synergy
Fellwar Stone
44% of 9 decks +24% synergy
Talisman of Hierarchy
40% of 5 decks +35% synergy
Prismatic Lens
33% of 9 decks +31% synergy
Charcoal Diamond
33% of 9 decks +30% synergy
Everflowing Chalice
22% of 9 decks +17% synergy
Thought Vessel
22% of 9 decks +7% synergy
Mind Stone
22% of 9 decks +3% synergy
Decanter of Endless Water
12% of 8 decks +7% synergy
Firemind Vessel
11% of 9 decks +11% synergy
Star Compass
11% of 9 decks +10% synergy
Extraplanar Lens
11% of 9 decks +10% synergy
Crowded Crypt
11% of 9 decks +10% synergy
Liquimetal Torque
11% of 9 decks +7% synergy
Thran Dynamo
11% of 9 decks +6% synergy
Jeweled Lotus
11% of 9 decks +3% synergy
Lands (23)
Caves of Koilos
60% of 5 decks +54% synergy
Command Tower
56% of 9 decks -17% synergy
Arctic Treeline
50% of 2 decks +49% synergy
Citadel Gate
50% of 4 decks +49% synergy
Scattered Groves
50% of 2 decks +49% synergy
Sandsteppe Citadel
50% of 2 decks +47% synergy
Indatha Triome
50% of 2 decks +46% synergy
Woodland Chasm
33% of 3 decks +32% synergy
Woodland Cemetery
33% of 3 decks +28% synergy
Heap Gate
25% of 8 decks +24% synergy
Black Dragon Gate
25% of 8 decks +23% synergy
Terramorphic Expanse
22% of 9 decks +6% synergy
Evolving Wilds
22% of 9 decks -0% synergy
Snowfield Sinkhole
20% of 5 decks +19% synergy
Tainted Field
20% of 5 decks +17% synergy
Temple of Silence
20% of 5 decks +16% synergy
Crystal Grotto
14% of 7 decks +13% synergy
Cabaretti Courtyard
11% of 9 decks +9% synergy
Ash Barrens
11% of 9 decks +6% synergy
Cavern of Souls
11% of 9 decks +6% synergy
Marsh Flats
11% of 9 decks -1% synergy
Path of Ancestry
11% of 9 decks -7% synergy
Exotic Orchard
11% of 9 decks -22% synergy