Retribution of the Ancients + Phyrexian Altar + Butcher Ghoul

Retribution of the Ancients
Phyrexian Altar
Butcher Ghoul

Requires
Retribution of the Ancients must be on the battlefield. Phyrexian Altar must be on the battlefield. Butcher Ghoul must be on the battlefield. Butcher Ghoul has no +1/+1 counters on it.
Steps
  1. Activate Phyrexian Altar by sacrificing Butcher Ghoul, adding .
  2. Butcher 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 and removing a +1/+1 counter from Butcher Ghoul, giving any creature -1/-1 until end of turn.
  4. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Reduce any number of target creatures' toughness to zero.

Ghave, Guru of Spores
0.17% of 6366 decks 11 decks
Yawgmoth, Thran Physician
0.14% of 5555 decks 8 decks
High Synergy Cards
Strangleroot Geist
88% of 17 decks +88% synergy
Young Wolf
88% of 17 decks +88% synergy
Geralf's Messenger
78% of 49 decks +77% synergy
Good-Fortune Unicorn
75% of 12 decks +72% synergy
Ashnod's Altar
80% of 49 decks +72% synergy
Top Cards
Flayer of the Hatebound
67% of 6 decks +66% synergy
Fierce Guardianship
67% of 6 decks +49% synergy
Zulaport Cutthroat
65% of 49 decks +55% synergy
Mikaeus, the Unhallowed
61% of 49 decks +58% synergy
Devoted Druid
59% of 17 decks +56% synergy
Elas il-Kor, Sadistic Pilgrim
58% of 12 decks +47% synergy
Warren Soultrader
57% of 7 decks +49% synergy
Cathars' Crusade
56% of 16 decks +50% synergy
Swords to Plowshares
56% of 16 decks -6% synergy
Blood Artist
55% of 49 decks +43% synergy
Creatures
Gravecrawler
53% of 49 decks +50% synergy
Pitiless Plunderer
53% of 49 decks +45% synergy
Carrion Feeder
51% of 49 decks +46% synergy
Viscera Seer
51% of 49 decks +41% synergy
Pyreheart Wolf
50% of 6 decks +50% synergy
Kitchen Finks
50% of 12 decks +50% synergy
River Kelpie
50% of 6 decks +49% synergy
Grimgrin, Corpse-Born
50% of 6 decks +49% synergy
Flux Channeler
50% of 6 decks +47% synergy
Rosie Cotton of South Lane
50% of 6 decks +46% synergy
Mahadi, Emporium Master
50% of 6 decks +43% synergy
Cruel Celebrant
50% of 16 decks +41% synergy
Mazirek, Kraul Death Priest
47% of 17 decks +44% synergy
Juniper Order Ranger
42% of 12 decks +40% synergy
Bloodspore Thrinax
41% of 17 decks +41% synergy
Corpsejack Menace
41% of 17 decks +36% synergy
Corpse Knight
38% of 16 decks +32% synergy
Conclave Mentor
36% of 11 decks +32% synergy
Ivy Lane Denizen
35% of 17 decks +34% synergy
Slimefoot, the Stowaway
35% of 17 decks +33% synergy
Eternal Witness
35% of 17 decks +14% synergy
Grim Haruspex
35% of 49 decks +30% synergy
Gray Merchant of Asphodel
33% of 49 decks +24% synergy
Scurry Oak
31% of 16 decks +29% synergy
Elenda, the Dusk Rose
31% of 16 decks +26% synergy
Putrid Goblin
31% of 49 decks +30% synergy
Pawn of Ulamog
31% of 49 decks +28% synergy
Renata, Called to the Hunt
29% of 17 decks +27% synergy
Champion of Lambholt
29% of 17 decks +22% synergy
Reveillark
25% of 16 decks +23% synergy
Avacyn's Pilgrim
25% of 12 decks +10% synergy
Puppeteer Clique
24% of 49 decks +23% synergy
Reassembling Skeleton
24% of 49 decks +21% synergy
Utopia Mycon
24% of 17 decks +23% synergy
Woodfall Primus
24% of 17 decks +22% synergy
Birds of Paradise
24% of 17 decks -3% synergy
Walking Ballista
22% of 49 decks +20% synergy
Yawgmoth, Thran Physician
22% of 49 decks +19% synergy
Ayara, First of Locthwain
20% of 49 decks +17% synergy
Crypt Ghast
20% of 49 decks +16% synergy
Luminous Broodmoth
20% of 15 decks +18% synergy
Esper Sentinel
20% of 15 decks -1% synergy
Twilight Shepherd
19% of 16 decks +19% synergy
Vizier of Remedies
19% of 16 decks +19% synergy
Cryptic Trilobite
19% of 48 decks +19% synergy
Ravenous Squirrel
19% of 16 decks +16% synergy
Karmic Guide
19% of 16 decks +14% synergy
Chatterfang, Squirrel General
19% of 16 decks +13% synergy
Mentor of the Meek
19% of 16 decks +13% synergy
Evernight Shade
18% of 49 decks +18% synergy
Instants
Experimental Augury
75% of 4 decks +72% synergy
Dark Ritual
53% of 49 decks +31% synergy
Vampiric Tutor
41% of 49 decks +22% synergy
Corrupted Conviction
31% of 26 decks +25% synergy
Beast Within
29% of 17 decks -10% synergy
Deadly Rollick
29% of 48 decks +19% synergy
Abzan Charm
25% of 12 decks +20% synergy
Eladamri's Call
25% of 12 decks +13% synergy
Anguished Unmaking
25% of 16 decks +1% synergy
Path to Exile
25% of 16 decks -20% synergy
Culling the Weak
24% of 49 decks +21% synergy
Abrupt Decay
24% of 17 decks +13% synergy
Assassin's Trophy
24% of 17 decks -7% synergy
Village Rites
23% of 48 decks +13% synergy
Deadly Dispute
23% of 48 decks +12% synergy
Fanatical Offering
19% of 16 decks +17% synergy
Malakir Rebirth
19% of 48 decks +10% synergy
Cabal Ritual
18% of 49 decks +14% synergy
Entomb
18% of 49 decks +11% synergy
Inspiring Call
18% of 17 decks +10% synergy
Harrow
18% of 17 decks +8% synergy
Worldly Tutor
18% of 17 decks +3% synergy
Tragic Slip
16% of 49 decks +13% synergy
Reckoner's Bargain
13% of 45 decks +12% synergy
Rise of the Dread Marn
12% of 48 decks +11% synergy
Snuff Out
12% of 49 decks +10% synergy
Defile
12% of 49 decks +9% synergy
Plumb the Forbidden
10% of 48 decks +7% synergy
Infernal Grasp
8% of 48 decks +1% synergy
Force of Despair
8% of 49 decks +7% synergy
Imp's Mischief
8% of 49 decks +5% synergy
Ad Nauseam
8% of 49 decks +5% synergy
Hagra Mauling
6% of 48 decks +4% synergy
Rain of Filth
6% of 49 decks +5% synergy
Undying Evil
6% of 49 decks +5% synergy
Go for the Throat
6% of 49 decks -1% synergy
Sorceries
Farseek
47% of 17 decks +13% synergy
Demonic Tutor
45% of 49 decks +22% synergy
Three Visits
41% of 17 decks +16% synergy
Rampant Growth
41% of 17 decks +6% synergy
Nature's Lore
35% of 17 decks +3% synergy
Diabolic Intent
33% of 49 decks +24% synergy
Reanimate
31% of 49 decks +15% synergy
Feed the Swarm
27% of 48 decks +9% synergy
Cultivate
24% of 17 decks -23% synergy
Sign in Blood
22% of 49 decks +13% synergy
Unearth
20% of 49 decks +17% synergy
Victimize
20% of 49 decks +9% synergy
Damn
20% of 15 decks +3% synergy
Grim Tutor
18% of 49 decks +14% synergy
Diabolic Tutor
16% of 49 decks +10% synergy
Toxic Deluge
16% of 49 decks -1% synergy
Bubbling Muck
14% of 49 decks +13% synergy
Beseech the Mirror
14% of 21 decks +10% synergy
Profane Tutor
12% of 48 decks +10% synergy
Agadeem's Awakening
12% of 48 decks +9% synergy
Buried Alive
12% of 49 decks +7% synergy
Night's Whisper
12% of 49 decks +3% synergy
Beseech the Queen
10% of 49 decks +9% synergy
Army of the Damned
10% of 49 decks +8% synergy
Imperial Seal
10% of 49 decks +4% synergy
Black Sun's Zenith
8% of 49 decks +7% synergy
Scheming Symmetry
8% of 49 decks +6% synergy
Mutilate
8% of 49 decks +6% synergy
Torment of Hailfire
8% of 49 decks +3% synergy
Living Death
8% of 49 decks +3% synergy
Exsanguinate
8% of 49 decks +3% synergy
Read the Bones
8% of 49 decks +0% synergy
Damnation
8% of 49 decks -0% synergy
Call of the Death-Dweller
6% of 48 decks +6% synergy
Bone Shards
6% of 48 decks +5% synergy
Unmarked Grave
6% of 48 decks +3% synergy
Cemetery Recruitment
6% of 49 decks +6% synergy
Dark Salvation
6% of 49 decks +6% synergy
Final Parting
6% of 49 decks +4% synergy
Utility Artifacts
Skullclamp
53% of 49 decks +41% synergy
Altar of Dementia
24% of 49 decks +22% synergy
Lightning Greaves
24% of 49 decks -1% synergy
Birthing Pod
24% of 17 decks +21% synergy
The Great Henge
24% of 17 decks +14% synergy
The Ozolith
21% of 48 decks +17% synergy
Bolas's Citadel
20% of 49 decks +11% synergy
Blasting Station
18% of 49 decks +18% synergy
Cauldron of Souls
16% of 49 decks +16% synergy
Jet Medallion
16% of 49 decks +14% synergy
Bontu's Monument
14% of 49 decks +12% synergy
Aetherflux Reservoir
14% of 49 decks +10% synergy
Sensei's Divining Top
14% of 49 decks +9% synergy
Swiftfoot Boots
14% of 49 decks -14% synergy
The One Ring
14% of 29 decks +5% synergy
Thornbite Staff
12% of 49 decks +11% synergy
Expedition Map
12% of 49 decks +9% synergy
Nim Deathmantle
10% of 49 decks +9% synergy
Transmogrant's Crown
8% of 36 decks +8% synergy
Animation Module
8% of 49 decks +8% synergy
Wishclaw Talisman
8% of 49 decks +3% synergy
Blade of the Bloodchief
6% of 49 decks +5% synergy
Contagion Clasp
6% of 49 decks +5% synergy
Mindcrank
6% of 49 decks +4% synergy
Thousand-Year Elixir
6% of 49 decks +4% synergy
Enchantments
Inexorable Tide
50% of 6 decks +47% synergy
Tribute to the World Tree
43% of 7 decks +34% synergy
Hardened Scales
35% of 17 decks +27% synergy
Grave Pact
35% of 49 decks +30% synergy
Bastion of Remembrance
31% of 48 decks +25% synergy
Master Chef
31% of 13 decks +29% synergy
Fecundity
29% of 17 decks +28% synergy
Parallel Lives
29% of 17 decks +22% synergy
The Meathook Massacre
27% of 48 decks +22% synergy
Anointed Procession
25% of 16 decks +16% synergy
Aura Shards
25% of 12 decks +16% synergy
Dictate of Erebos
24% of 49 decks +21% synergy
Death's Presence
24% of 17 decks +22% synergy
Doubling Season
24% of 17 decks +15% synergy
Thran Vigil
22% of 36 decks +22% synergy
Black Market Connections
21% of 42 decks +11% synergy
Phyrexian Arena
20% of 49 decks +6% synergy
Animate Dead
18% of 49 decks +9% synergy
Primal Vigor
18% of 17 decks +15% synergy
Deathreap Ritual
18% of 17 decks +13% synergy
Wild Growth
18% of 17 decks +7% synergy
Carnival of Souls
16% of 49 decks +16% synergy
Nest of Scarabs
16% of 49 decks +16% synergy
Necropotence
16% of 49 decks +11% synergy
Black Market
14% of 49 decks +10% synergy
Dark Prophecy
12% of 49 decks +11% synergy
Contamination
10% of 49 decks +10% synergy
Blight Mound
8% of 48 decks +7% synergy
Necromancy
8% of 49 decks +5% synergy
Bitterblossom
8% of 49 decks +4% synergy
Bridge from Below
6% of 49 decks +6% synergy
Unspeakable Symbol
6% of 49 decks +6% synergy
Open the Graves
6% of 49 decks +5% synergy
Greed
6% of 49 decks +4% synergy
Bloodchief Ascension
6% of 49 decks +3% synergy
Exquisite Blood
6% of 49 decks +1% synergy
Planeswalkers
Liliana, Dreadhorde General
8% of 49 decks +5% synergy
Liliana of the Dark Realms
6% of 49 decks +5% synergy
Utility Lands
Urborg, Tomb of Yawgmoth
45% of 49 decks +35% synergy
Cabal Coffers
43% of 49 decks +32% synergy
Phyrexian Tower
39% of 49 decks +30% synergy
Bojuka Bog
37% of 49 decks +6% synergy
Nykthos, Shrine to Nyx
33% of 49 decks +27% synergy
Ancient Tomb
33% of 49 decks +22% synergy
Boseiju, Who Endures
27% of 15 decks +7% synergy
Reliquary Tower
24% of 49 decks -5% synergy
Grim Backwoods
24% of 17 decks +20% synergy
Witch's Cottage
20% of 49 decks +17% synergy
Cabal Stronghold
18% of 49 decks +15% synergy
Castle Locthwain
18% of 49 decks +13% synergy
Takenuma, Abandoned Mire
18% of 45 decks +7% synergy
Nesting Grounds
17% of 48 decks +15% synergy
Karn's Bastion
16% of 49 decks +11% synergy
Unholy Grotto
14% of 49 decks +14% synergy
Volrath's Stronghold
10% of 49 decks +9% synergy
Westvale Abbey
10% of 49 decks +8% synergy
Thespian's Stage
10% of 49 decks +8% synergy
Mortuary Mire
10% of 49 decks +5% synergy
War Room
8% of 48 decks +2% synergy
Yavimaya, Cradle of Growth
8% of 48 decks -1% synergy
Field of the Dead
8% of 49 decks +5% synergy
Command Beacon
8% of 49 decks +3% synergy
Rogue's Passage
8% of 49 decks -11% synergy
Urza's Saga
6% of 48 decks -1% synergy
Deserted Temple
6% of 49 decks +6% synergy
Vesuva
6% of 49 decks +5% synergy
Blast Zone
6% of 49 decks +5% synergy
Crypt of Agadeem
6% of 49 decks +5% synergy
Dakmor Salvage
6% of 49 decks +4% synergy
Strip Mine
6% of 49 decks +3% synergy
High Market
6% of 49 decks +3% synergy
Barren Moor
6% of 49 decks +2% synergy
Shizo, Death's Storehouse
6% of 49 decks +1% synergy
Buried Ruin
6% of 49 decks +1% synergy
Temple of the False God
6% of 49 decks -4% synergy
Mana Artifacts
Sol Ring
90% of 49 decks +5% synergy
Arcane Signet
63% of 49 decks -9% synergy
Mana Crypt
20% of 49 decks +10% synergy
Fellwar Stone
18% of 49 decks -3% synergy
Jeweled Lotus
12% of 48 decks +6% synergy
Charcoal Diamond
10% of 49 decks +5% synergy
Commander's Sphere
10% of 49 decks -5% synergy
Mox Amber
8% of 49 decks +4% synergy
Mox Opal
8% of 49 decks +4% synergy
Everflowing Chalice
8% of 49 decks +3% synergy
Chrome Mox
8% of 49 decks +2% synergy
Thought Vessel
8% of 49 decks -8% synergy
Crowded Crypt
6% of 48 decks +5% synergy
Nyx Lotus
6% of 49 decks +5% synergy
Heraldic Banner
6% of 49 decks +4% synergy
Springleaf Drum
6% of 49 decks +4% synergy
Thran Dynamo
6% of 49 decks +1% synergy
Mana Vault
6% of 49 decks -0% synergy
Mind Stone
6% of 49 decks -11% synergy
Lands
Drowned Catacomb
67% of 6 decks +42% synergy
Dragonskull Summit
67% of 6 decks +36% synergy
Sunken Hollow
67% of 6 decks +32% synergy
Watery Grave
67% of 6 decks +26% synergy
Overgrown Tomb
65% of 17 decks +22% synergy
Godless Shrine
56% of 16 decks +15% synergy
Tainted Isle
50% of 6 decks +39% synergy
Underground Sea
50% of 6 decks +36% synergy
Bountiful Promenade
50% of 12 decks +26% synergy
Morphic Pool
50% of 6 decks +24% synergy
Caves of Koilos
50% of 16 decks +22% synergy
Smoldering Marsh
50% of 6 decks +18% synergy
Blood Crypt
50% of 6 decks +11% synergy
Temple Garden
50% of 12 decks +9% synergy
Woodland Cemetery
47% of 17 decks +20% synergy
Command Tower
47% of 49 decks -27% synergy
Indatha Triome
45% of 11 decks +14% synergy
Isolated Chapel
44% of 16 decks +17% synergy
Sunpetal Grove
42% of 12 decks +19% synergy
Sandsteppe Citadel
42% of 12 decks +16% synergy
Vault of Champions
40% of 15 decks +14% synergy
Canopy Vista
33% of 12 decks -2% synergy
Undergrowth Stadium
31% of 16 decks +5% synergy
Verdant Catacombs
27% of 49 decks +15% synergy
Fetid Heath
25% of 16 decks +14% synergy
Savannah
25% of 12 decks +12% synergy
Scrubland
25% of 16 decks +11% synergy
Deathcap Glade
25% of 16 decks +11% synergy
Marsh Flats
24% of 49 decks +13% synergy
Polluted Delta
20% of 49 decks +9% synergy
Shattered Sanctum
20% of 15 decks +6% synergy
Temple of Silence
19% of 16 decks +1% synergy
Twilight Mire
18% of 17 decks +8% synergy
Bayou
18% of 17 decks +4% synergy
Llanowar Wastes
18% of 17 decks -8% synergy
Myriad Landscape
16% of 49 decks -4% synergy
Windswept Heath
14% of 49 decks +4% synergy
Cavern of Souls
12% of 49 decks +5% synergy
Bloodstained Mire
12% of 49 decks +2% synergy
Exotic Orchard
12% of 49 decks -23% synergy
Mana Confluence
10% of 49 decks +3% synergy
Wooded Foothills
10% of 49 decks +0% synergy
Misty Rainforest
10% of 49 decks -2% synergy
Terramorphic Expanse
10% of 49 decks -5% synergy
Evolving Wilds
10% of 49 decks -11% synergy
Demolition Field
8% of 36 decks +5% synergy
City of Brass
8% of 49 decks -0% synergy
Reflecting Pool
6% of 49 decks +1% synergy
Prismatic Vista
6% of 49 decks +1% synergy
Fabled Passage
6% of 49 decks -3% synergy