Necrotic Ooze
Endling
Walking Ballista
Phyrexian Altar
1

   Prerequisites

What do I need to start this combo?
Necrotic Ooze and Phyrexian Altar on the battlefield.
Endling and Walking Ballista in your graveyard.
available

   Steps

How does this combo work?
1
Activate Necrotic Ooze using Endling's third ability by paying , giving Necrotic Ooze undying until end of turn.
2
If Necrotic Ooze has any +1/+1 counters, activate it using Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to any target.
3
Repeat step 2 until Necrotic Ooze has no +1/+1 counters.
4
Activate Phyrexian Altar by sacrificing Necrotic Ooze, adding .
5
Necrotic Ooze dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
6
Repeat.

   Results

What do I get from this combo?
Infinite damage
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Mairsil, the Pretender
0.25% of 1605 decks 4 decks
K'rrik, Son of Yawgmoth
0.02% of 15516 decks 3 decks
Trazyn the Infinite
0.11% of 1892 decks 2 decks
The Scarab God
0.02% of 11262 decks 2 decks
Whisper, Blood Liturgist
0.60% of 332 decks 2 decks
Meren of Clan Nel Toth
0.01% of 16633 decks 2 decks
Lazav, the Multifarious
0.07% of 1428 decks 1 decks
The Necrobloom
0.01% of 14475 decks 1 decks
Skithiryx, the Blight Dragon
0.05% of 2029 decks 1 decks
Slimefoot and Squee
0.01% of 8691 decks 1 decks
Hogaak, Arisen Necropolis
0.05% of 2081 decks 1 decks
Arvinox, the Mind Flail
0.10% of 997 decks 1 decks
Teysa Karlov
0.01% of 16641 decks 1 decks
Oskar, Rubbish Reclaimer
0.04% of 2500 decks 1 decks
Marchesa, Dealer of Death
0.03% of 3978 decks 1 decks
Ishkanah, Grafwidow
0.13% of 794 decks 1 decks
Sidisi, Brood Tyrant
0.01% of 7081 decks 1 decks
Old Stickfingers
0.03% of 2915 decks 1 decks
New Cards
Anafenza, Unyielding Lineage
50% of 2 decks +49% synergy
Elspeth, Storm Slayer
50% of 2 decks +46% synergy
Hardened Tactician
50% of 2 decks +47% synergy
Voice of Victory
50% of 2 decks +44% synergy
Venerated Stormsinger
20% of 5 decks +19% synergy
High Synergy Cards
Aetherling
70% of 10 decks +70% synergy
Buried Alive
71% of 31 decks +65% synergy
Entomb
71% of 31 decks +64% synergy
Anger
67% of 6 decks +61% synergy
Arcanis the Omnipotent
60% of 10 decks +59% synergy
Abrupt Decay
67% of 9 decks +56% synergy
Fauna Shaman
56% of 9 decks +53% synergy
Devoted Druid
56% of 9 decks +53% synergy
Likeness Looter
56% of 9 decks +52% synergy
Life from the Loam
56% of 9 decks +52% synergy
Top Cards
Assassin's Trophy
78% of 9 decks +47% synergy
Faithless Looting
67% of 6 decks +50% synergy
Chaos Warp
67% of 6 decks +35% synergy
Blasphemous Act
67% of 6 decks +33% synergy
Reanimate
65% of 31 decks +48% synergy
Windfall
60% of 10 decks +47% synergy
Frantic Search
60% of 10 decks +47% synergy
Green Sun's Zenith
56% of 9 decks +50% synergy
Birds of Paradise
56% of 9 decks +28% synergy
Asmodeus the Archfiend
52% of 31 decks +51% synergy
Game Changers
Demonic Tutor
58% of 31 decks +37% synergy
Vampiric Tutor
52% of 31 decks +34% synergy
Gamble
50% of 6 decks +41% synergy
Survival of the Fittest
44% of 9 decks +43% synergy
Worldly Tutor
44% of 9 decks +31% synergy
Cyclonic Rift
40% of 10 decks +14% synergy
Ancient Tomb
39% of 31 decks +29% synergy
Thassa's Oracle
30% of 10 decks +23% synergy
Opposition Agent
26% of 31 decks +19% synergy
Imperial Seal
23% of 31 decks +17% synergy
Creatures
Skirge Familiar
52% of 31 decks +51% synergy
Horseshoe Crab
50% of 10 decks +50% synergy
Kiki-Jiki, Mirror Breaker
50% of 6 decks +47% synergy
Phyrexian Devourer
48% of 31 decks +48% synergy
Channeler Initiate
44% of 9 decks +44% synergy
Pili-Pala
42% of 31 decks +42% synergy
Triskelion
42% of 31 decks +42% synergy
Cavern Harpy
40% of 10 decks +40% synergy
Tribute Mage
40% of 10 decks +38% synergy
Magus of the Coffers
35% of 31 decks +35% synergy
Palladium Myr
35% of 31 decks +34% synergy
Golgari Grave-Troll
33% of 9 decks +32% synergy
Fiend Artisan
33% of 9 decks +31% synergy
Haywire Mite
33% of 9 decks +30% synergy
Cankerbloom
33% of 9 decks +28% synergy
Ramunap Excavator
33% of 9 decks +27% synergy
Deathrite Shaman
33% of 9 decks +22% synergy
Elvish Mystic
33% of 9 decks +16% synergy
Sakura-Tribe Elder
33% of 9 decks +15% synergy
Eternal Witness
33% of 9 decks +14% synergy
Farmstead Gleaner
32% of 31 decks +32% synergy
Cinderhaze Wretch
32% of 31 decks +32% synergy
Quicksilver Elemental
30% of 10 decks +30% synergy
Morphling
30% of 10 decks +30% synergy
Mirror-Mad Phantasm
30% of 10 decks +30% synergy
Trophy Mage
30% of 10 decks +28% synergy
Thassa, Deep-Dwelling
30% of 10 decks +27% synergy
Fain, the Broker
26% of 31 decks +25% synergy
Stinkweed Imp
26% of 31 decks +25% synergy
Gravecrawler
26% of 31 decks +23% synergy
Zulaport Cutthroat
26% of 31 decks +17% synergy
Corpse Connoisseur
23% of 31 decks +22% synergy
Blood Pet
23% of 31 decks +21% synergy
Vile Entomber
23% of 31 decks +21% synergy
Viscera Seer
23% of 31 decks +14% synergy
Mikaeus, the Unhallowed
19% of 31 decks +17% synergy
Reassembling Skeleton
19% of 31 decks +16% synergy
Dauthi Voidwalker
19% of 31 decks +12% synergy
Orcish Bowmasters
17% of 29 decks +8% synergy
Pawn of Ulamog
16% of 31 decks +14% synergy
Woe Strider
16% of 31 decks +14% synergy
Drivnod, Carnage Dominus
16% of 31 decks +14% synergy
Stitcher's Supplier
16% of 31 decks +13% synergy
Yawgmoth, Thran Physician
16% of 31 decks +13% synergy
Carrion Feeder
16% of 31 decks +11% synergy
Braids, Arisen Nightmare
16% of 31 decks +9% synergy
Pitiless Plunderer
16% of 31 decks +8% synergy
Blood Artist
16% of 31 decks +4% synergy
Blood Vassal
13% of 31 decks +13% synergy
Pack Rat
13% of 31 decks +12% synergy
Instants
Lightning Bolt
50% of 6 decks +39% synergy
Abrade
50% of 6 decks +39% synergy
Rakdos Charm
50% of 6 decks +35% synergy
Dark Ritual
48% of 31 decks +26% synergy
Noxious Revival
44% of 9 decks +39% synergy
Veil of Summer
44% of 9 decks +39% synergy
Beast Within
44% of 9 decks +7% synergy
Fact or Fiction
40% of 10 decks +34% synergy
Arcane Denial
40% of 10 decks +20% synergy
An Offer You Can't Refuse
40% of 10 decks +18% synergy
Swan Song
30% of 10 decks +14% synergy
Brainstorm
30% of 10 decks +10% synergy
Negate
30% of 10 decks +8% synergy
Counterspell
30% of 10 decks -12% synergy
Deadly Rollick
26% of 31 decks +14% synergy
Imp's Mischief
19% of 31 decks +16% synergy
Culling the Weak
19% of 31 decks +16% synergy
Cabal Ritual
19% of 31 decks +15% synergy
Village Rites
19% of 31 decks +10% synergy
Snuff Out
10% of 31 decks +7% synergy
Sheoldred's Edict
10% of 31 decks +7% synergy
Defile
10% of 31 decks +6% synergy
Demonic Consultation
10% of 31 decks +6% synergy
Tainted Pact
10% of 31 decks +6% synergy
Go for the Throat
10% of 31 decks +3% synergy
Infernal Grasp
10% of 31 decks +3% synergy
Malakir Rebirth
10% of 31 decks +2% synergy
Deadly Dispute
10% of 31 decks -1% synergy
Sorceries
Toxic Deluge
52% of 31 decks +34% synergy
Unmarked Grave
39% of 31 decks +36% synergy
Diabolic Intent
35% of 31 decks +27% synergy
Finale of Devastation
33% of 9 decks +25% synergy
Careful Study
30% of 10 decks +29% synergy
Preordain
30% of 10 decks +20% synergy
Ponder
30% of 10 decks +18% synergy
Grim Tutor
29% of 31 decks +25% synergy
Final Parting
26% of 31 decks +24% synergy
Dread Return
23% of 31 decks +17% synergy
Victimize
23% of 31 decks +11% synergy
Feed the Swarm
23% of 31 decks +5% synergy
Torment of Hailfire
19% of 31 decks +15% synergy
Night's Whisper
19% of 31 decks +10% synergy
Damnation
16% of 31 decks +9% synergy
Sign in Blood
16% of 31 decks +7% synergy
Beseech the Mirror
15% of 27 decks +12% synergy
Chain of Smog
13% of 31 decks +12% synergy
Bone Shards
13% of 31 decks +11% synergy
Stitch Together
13% of 31 decks +11% synergy
Living Death
13% of 31 decks +8% synergy
Ransack the Lab
10% of 31 decks +9% synergy
Duress
10% of 31 decks +9% synergy
Bubbling Muck
10% of 31 decks +8% synergy
Mutilate
10% of 31 decks +8% synergy
Dark Deal
10% of 31 decks +7% synergy
Syphon Mind
10% of 31 decks +7% synergy
Agadeem's Awakening
10% of 31 decks +6% synergy
Diabolic Tutor
10% of 31 decks +4% synergy
Utility Artifacts
Lightning Greaves
45% of 31 decks +20% synergy
Swiftfoot Boots
42% of 31 decks +14% synergy
Ashnod's Altar
32% of 31 decks +25% synergy
Staff of Domination
26% of 31 decks +24% synergy
Jet Medallion
23% of 31 decks +20% synergy
Lotus Petal
19% of 31 decks +13% synergy
Skullclamp
19% of 31 decks +8% synergy
Mind Stone
19% of 31 decks +3% synergy
Nevinyrral's Disk
16% of 31 decks +15% synergy
Mesmeric Orb
16% of 31 decks +15% synergy
Altar of Dementia
16% of 31 decks +14% synergy
Expedition Map
16% of 31 decks +13% synergy
Pendant of Prosperity
13% of 31 decks +13% synergy
Aetherflux Reservoir
13% of 31 decks +9% synergy
Sensei's Divining Top
13% of 31 decks +8% synergy
The One Ring
13% of 31 decks +5% synergy
Bolas's Citadel
13% of 31 decks +4% synergy
Commander's Sphere
13% of 31 decks -2% synergy
Agatha's Soul Cauldron
11% of 27 decks +10% synergy
Perpetual Timepiece
10% of 31 decks +9% synergy
Thousand-Year Elixir
10% of 31 decks +8% synergy
Wishclaw Talisman
10% of 31 decks +4% synergy
Enchantments
Animate Dead
35% of 31 decks +26% synergy
Sylvan Library
33% of 9 decks +23% synergy
Rhystic Study
30% of 10 decks +3% synergy
Necromancy
29% of 31 decks +26% synergy
Black Market Connections
23% of 31 decks +12% synergy
Phyrexian Reclamation
16% of 31 decks +13% synergy
Dance of the Dead
13% of 31 decks +11% synergy
Tortured Existence
13% of 31 decks +11% synergy
The Meathook Massacre
13% of 31 decks +8% synergy
Necropotence
10% of 31 decks +4% synergy
Bastion of Remembrance
10% of 31 decks +3% synergy
Phyrexian Arena
10% of 31 decks -6% synergy
Battles
Planeswalkers
Professor Onyx
10% of 31 decks +8% synergy
Utility Lands
Riptide Laboratory
50% of 10 decks +48% synergy
Urborg, Tomb of Yawgmoth
48% of 31 decks +39% synergy
Boseiju, Who Endures
44% of 9 decks +26% synergy
Phyrexian Tower
42% of 31 decks +33% synergy
Otawara, Soaring City
40% of 10 decks +24% synergy
Dryad Arbor
33% of 9 decks +29% synergy
Cabal Coffers
32% of 31 decks +22% synergy
Mystic Sanctuary
30% of 10 decks +19% synergy
Urza's Saga
29% of 31 decks +22% synergy
Takenuma, Abandoned Mire
26% of 31 decks +16% synergy
Bojuka Bog
26% of 31 decks -4% synergy
Dakmor Salvage
19% of 31 decks +17% synergy
Geier Reach Sanitarium
19% of 31 decks +16% synergy
Yavimaya, Cradle of Growth
19% of 31 decks +10% synergy
Reliquary Tower
19% of 31 decks -10% synergy
Volrath's Stronghold
16% of 31 decks +15% synergy
Crypt of Agadeem
16% of 31 decks +15% synergy
Strip Mine
16% of 31 decks +13% synergy
Cabal Stronghold
16% of 31 decks +13% synergy
Field of the Dead
13% of 31 decks +10% synergy
Command Beacon
13% of 31 decks +8% synergy
Castle Locthwain
13% of 31 decks +8% synergy
Buried Ruin
13% of 31 decks +8% synergy
Nykthos, Shrine to Nyx
13% of 31 decks +8% synergy
Crystal Vein
10% of 31 decks +9% synergy
Barren Moor
10% of 31 decks +6% synergy
War Room
10% of 31 decks +4% synergy
Temple of the False God
10% of 31 decks +0% synergy
Rogue's Passage
10% of 31 decks -10% synergy
Mana Artifacts
Sol Ring
94% of 31 decks +9% synergy
Izzet Signet
80% of 5 decks +53% synergy
Dimir Signet
70% of 10 decks +42% synergy
Arcane Signet
68% of 31 decks -5% synergy
Talisman of Creativity
60% of 5 decks +31% synergy
Talisman of Indulgence
50% of 6 decks +23% synergy
Talisman of Dominance
50% of 10 decks +18% synergy
Talisman of Resilience
33% of 9 decks +21% synergy
Gilded Lotus
26% of 31 decks +23% synergy
Mox Amber
19% of 31 decks +15% synergy
Mana Crypt
19% of 31 decks +14% synergy
Fellwar Stone
19% of 31 decks -2% synergy
Basalt Monolith
16% of 31 decks +13% synergy
Mox Diamond
16% of 31 decks +12% synergy
Charcoal Diamond
16% of 31 decks +11% synergy
Chrome Mox
16% of 31 decks +10% synergy
Thought Vessel
16% of 31 decks -1% synergy
Thran Dynamo
13% of 31 decks +8% synergy
Grim Monolith
10% of 31 decks +8% synergy
Mana Vault
10% of 31 decks +4% synergy
Lands
Xander's Lounge
100% of 5 decks +74% synergy
Training Center
100% of 5 decks +73% synergy
Steam Vents
100% of 5 decks +62% synergy
Luxury Suite
83% of 6 decks +57% synergy
Dragonskull Summit
83% of 6 decks +51% synergy
Blood Crypt
83% of 6 decks +45% synergy
Morphic Pool
80% of 10 decks +54% synergy
Sulfur Falls
80% of 5 decks +48% synergy
Watery Grave
80% of 10 decks +40% synergy
Overgrown Tomb
67% of 9 decks +25% synergy
Command Tower
61% of 31 decks -13% synergy
Bayou
56% of 9 decks +42% synergy
Llanowar Wastes
56% of 9 decks +29% synergy
Woodland Cemetery
56% of 9 decks +26% synergy
Underground River
50% of 10 decks +29% synergy
Twilight Mire
44% of 9 decks +34% synergy
Undergrowth Stadium
44% of 9 decks +19% synergy
Drowned Catacomb
40% of 10 decks +13% synergy
Nurturing Peatland
33% of 9 decks +28% synergy
Darkbore Pathway
33% of 9 decks +25% synergy
Deathcap Glade
33% of 9 decks +20% synergy
Bloodstained Mire
32% of 31 decks +22% synergy
Verdant Catacombs
32% of 31 decks +21% synergy
Contaminated Aquifer
30% of 10 decks +27% synergy
Fetid Pools
30% of 10 decks +24% synergy
Underground Sea
30% of 10 decks +16% synergy
Shipwreck Marsh
30% of 10 decks +11% synergy
Polluted Delta
29% of 31 decks +18% synergy
Scalding Tarn
19% of 31 decks +9% synergy
Marsh Flats
19% of 31 decks +8% synergy
Misty Rainforest
19% of 31 decks +8% synergy
Myriad Landscape
19% of 31 decks +1% synergy
Exotic Orchard
19% of 31 decks -17% synergy
Reflecting Pool
16% of 31 decks +11% synergy
City of Brass
16% of 31 decks +8% synergy
Mana Confluence
13% of 31 decks +6% synergy
Wooded Foothills
13% of 31 decks +3% synergy
Windswept Heath
13% of 31 decks +2% synergy
Prismatic Vista
10% of 31 decks +5% synergy