Halo Fountain + Phyrexian Altar + Karn, the Great Creator

Halo Fountain
Phyrexian Altar
Karn, the Great Creator

Requires
Halo Fountain must be on the battlefield. Phyrexian Altar must be on the battlefield. Karn, the Great Creator must be on the battlefield. Halo Fountain does not have summoning sickness. Mana needed:
Steps
  1. Activate Karn's first loyalty ability by putting a loyalty counter on it, causing Halo Fountain to become an artifact creature until end of turn.
  2. Activate Halo Fountain's first ability by paying , tapping it and untapping it, creating a 1/1 Citizen creature token.
  3. Activate Phyrexian Altar by sacrificing the Citizen, adding .
  4. Repeat from step 2.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

The Jolly Balloon Man
0.02% of 4214 decks 1 decks
Top Commanders
Myrel, Shield of Argive
0.11% of 6431 decks 7 decks
Oswald Fiddlebender
0.17% of 1791 decks 3 decks
Jan Jansen, Chaos Crafter
0.05% of 4386 decks 2 decks
Captain Sisay
0.07% of 1493 decks 1 decks
Rin and Seri, Inseparable
0.01% of 15859 decks 1 decks
Go-Shintai of Life's Origin
0.01% of 15054 decks 1 decks
Nevinyrral, Urborg Tyrant
0.06% of 1542 decks 1 decks
Tocasia, Dig Site Mentor
0.09% of 1175 decks 1 decks
Daxos, Blessed by the Sun
0.17% of 603 decks 1 decks
Ao, the Dawn Sky
0.15% of 661 decks 1 decks
Kudo, King Among Bears
0.02% of 4032 decks 1 decks
Osgir, the Reconstructor
0.02% of 5657 decks 1 decks
Ghalta and Mavren
0.04% of 2345 decks 1 decks
Jinnie Fay, Jetmir's Second
0.02% of 5326 decks 1 decks
Preston, the Vanisher
0.03% of 3243 decks 1 decks
Abdel Adrian, Gorion's Ward // Candlekeep Sage
0.03% of 3010 decks 1 decks
Elesh Norn, Mother of Machines
0.01% of 7595 decks 1 decks
High Synergy Cards
Enlightened Tutor
71% of 31 decks +53% synergy
Esper Sentinel
71% of 31 decks +50% synergy
Impact Tremors
56% of 9 decks +46% synergy
Drannith Magistrate
52% of 31 decks +45% synergy
Dockside Extortionist
56% of 9 decks +44% synergy
Alibou, Ancient Witness
44% of 9 decks +42% synergy
Urza's Saga
48% of 31 decks +41% synergy
Walking Ballista
39% of 31 decks +36% synergy
Mondrak, Glory Dominus
43% of 28 decks +34% synergy
Mycosynth Lattice
32% of 31 decks +31% synergy
Top Cards
Swords to Plowshares
71% of 31 decks +8% synergy
Path to Exile
65% of 31 decks +19% synergy
Heroic Intervention
57% of 7 decks +27% synergy
Nature's Lore
57% of 7 decks +25% synergy
Beast Within
57% of 7 decks +19% synergy
Smothering Tithe
52% of 31 decks +27% synergy
Jeweled Lotus
48% of 31 decks +43% synergy
Jeska's Will
44% of 9 decks +27% synergy
Teferi's Protection
42% of 31 decks +22% synergy
Anointed Procession
39% of 31 decks +30% synergy
Creatures
Herd Baloth
43% of 7 decks +42% synergy
Scurry Oak
43% of 7 decks +41% synergy
Fyndhorn Elves
43% of 7 decks +30% synergy
Avacyn's Pilgrim
43% of 7 decks +28% synergy
Elvish Mystic
43% of 7 decks +25% synergy
Llanowar Elves
43% of 7 decks +22% synergy
Elesh Norn, Grand Cenobite
35% of 31 decks +30% synergy
Imperial Recruiter
33% of 9 decks +27% synergy
Heliod, Sun-Crowned
32% of 31 decks +29% synergy
Aven Mindcensor
29% of 31 decks +25% synergy
Archivist of Oghma
29% of 31 decks +23% synergy
Boromir, Warden of the Tower
26% of 19 decks +21% synergy
Thalia, Guardian of Thraben
26% of 31 decks +23% synergy
Soul Warden
26% of 31 decks +21% synergy
Grand Abolisher
26% of 31 decks +17% synergy
Myrel, Shield of Argive
23% of 30 decks +20% synergy
Ojer Taq, Deepest Foundation
23% of 13 decks +17% synergy
Linvala, Keeper of Silence
23% of 31 decks +20% synergy
Foundry Inspector
23% of 31 decks +18% synergy
Ranger-Captain of Eos
23% of 31 decks +18% synergy
Rosie Cotton of South Lane
21% of 19 decks +17% synergy
Elesh Norn, Mother of Machines
21% of 29 decks +16% synergy
Loxodon Gatekeeper
19% of 31 decks +19% synergy
Archangel of Thune
19% of 31 decks +17% synergy
Recruiter of the Guard
19% of 31 decks +16% synergy
Soul's Attendant
19% of 31 decks +16% synergy
Phyrexian Vindicator
17% of 24 decks +15% synergy
Loran of the Third Path
17% of 30 decks +10% synergy
Catapult Master
16% of 31 decks +16% synergy
Serra Redeemer
16% of 31 decks +16% synergy
Defiler of Faith
16% of 31 decks +15% synergy
Oswald Fiddlebender
16% of 31 decks +14% synergy
Ethersworn Canonist
16% of 31 decks +14% synergy
Deep Gnome Terramancer
16% of 31 decks +14% synergy
Thalia, Heretic Cathar
16% of 31 decks +13% synergy
Bastion Protector
16% of 31 decks +13% synergy
Suture Priest
16% of 31 decks +13% synergy
Solemn Simulacrum
16% of 31 decks +2% synergy
Skrelv, Defector Mite
14% of 29 decks +10% synergy
Reverent Hoplite
13% of 31 decks +12% synergy
Archetype of Courage
13% of 31 decks +12% synergy
Archangel of Tithes
13% of 31 decks +11% synergy
Eidolon of Rhetoric
13% of 31 decks +11% synergy
Solitude
13% of 31 decks +11% synergy
Scrap Trawler
13% of 31 decks +11% synergy
Daxos, Blessed by the Sun
13% of 31 decks +10% synergy
Archon of Emeria
13% of 31 decks +10% synergy
Skyclave Apparition
13% of 31 decks +10% synergy
Windborn Muse
13% of 31 decks +9% synergy
Keeper of the Accord
13% of 31 decks +9% synergy
Instants
Vampiric Tutor
57% of 7 decks +39% synergy
Worldly Tutor
43% of 7 decks +29% synergy
Dark Ritual
43% of 7 decks +20% synergy
Chaos Warp
33% of 9 decks +1% synergy
Flare of Fortitude
30% of 10 decks +24% synergy
Generous Gift
29% of 31 decks +3% synergy
Silence
26% of 31 decks +19% synergy
Dispatch
16% of 31 decks +11% synergy
Flawless Maneuver
16% of 31 decks +6% synergy
Dawn Charm
13% of 31 decks +11% synergy
Angel's Grace
10% of 31 decks +8% synergy
Return to Dust
10% of 31 decks +6% synergy
Eerie Interlude
10% of 31 decks +6% synergy
Ephemerate
10% of 31 decks +4% synergy
Akroma's Will
10% of 31 decks +0% synergy
Sorceries
Demonic Tutor
71% of 7 decks +49% synergy
Green Sun's Zenith
43% of 7 decks +37% synergy
Damn
43% of 7 decks +27% synergy
Idyllic Tutor
23% of 31 decks +18% synergy
Ascend from Avernus
16% of 31 decks +14% synergy
Martial Coup
16% of 31 decks +13% synergy
Sevinne's Reclamation
16% of 31 decks +9% synergy
Deploy to the Front
13% of 31 decks +12% synergy
Finale of Glory
13% of 31 decks +11% synergy
Farewell
13% of 31 decks -1% synergy
Winds of Abandon
10% of 31 decks +8% synergy
Vanquish the Horde
10% of 31 decks +6% synergy
Utility Artifacts
Skullclamp
39% of 31 decks +26% synergy
Lightning Greaves
39% of 31 decks +13% synergy
Vexing Bauble
38% of 8 decks +36% synergy
Ashnod's Altar
35% of 31 decks +28% synergy
The One Ring
32% of 22 decks +23% synergy
Pearl Medallion
29% of 31 decks +27% synergy
Sensei's Divining Top
29% of 31 decks +24% synergy
Aetherflux Reservoir
23% of 31 decks +19% synergy
Rings of Brighthearth
19% of 31 decks +18% synergy
Staff of Domination
19% of 31 decks +18% synergy
Thousand-Year Elixir
19% of 31 decks +17% synergy
Archaeomancer's Map
19% of 31 decks +16% synergy
Swiftfoot Boots
19% of 31 decks -9% synergy
Grafdigger's Cage
16% of 31 decks +15% synergy
Krark-Clan Ironworks
16% of 31 decks +15% synergy
Akroma's Memorial
16% of 31 decks +15% synergy
Chalice of the Void
13% of 31 decks +13% synergy
Umbral Mantle
13% of 31 decks +12% synergy
Clock of Omens
13% of 31 decks +12% synergy
Dolmen Gate
13% of 31 decks +12% synergy
Illusionist's Bracers
13% of 31 decks +12% synergy
Cloud Key
13% of 31 decks +11% synergy
Unwinding Clock
13% of 31 decks +10% synergy
Altar of Dementia
13% of 31 decks +10% synergy
Urza's Incubator
13% of 31 decks +10% synergy
Uba Mask
10% of 31 decks +9% synergy
Sphere of Resistance
10% of 31 decks +9% synergy
Ensnaring Bridge
10% of 31 decks +9% synergy
Pithing Needle
10% of 31 decks +9% synergy
Damping Sphere
10% of 31 decks +9% synergy
Thorn of Amethyst
10% of 31 decks +9% synergy
Blasting Station
10% of 31 decks +9% synergy
Nim Deathmantle
10% of 31 decks +9% synergy
Winter Orb
10% of 31 decks +9% synergy
Cloudstone Curio
10% of 31 decks +9% synergy
Eldrazi Monument
10% of 31 decks +8% synergy
Darksteel Forge
10% of 31 decks +8% synergy
Moonsilver Key
10% of 31 decks +8% synergy
Oketra's Monument
10% of 31 decks +8% synergy
Coat of Arms
10% of 31 decks +8% synergy
Sculpting Steel
10% of 31 decks +7% synergy
Enchantments
Cryptolith Rite
43% of 7 decks +39% synergy
Phyrexian Arena
43% of 7 decks +28% synergy
Land Tax
32% of 31 decks +26% synergy
Authority of the Consuls
19% of 31 decks +15% synergy
Flowering of the White Tree
19% of 16 decks +13% synergy
Legion Loyalty
16% of 31 decks +15% synergy
Rest in Peace
16% of 31 decks +14% synergy
True Conviction
16% of 31 decks +14% synergy
Cathars' Crusade
16% of 31 decks +11% synergy
Ghostly Prison
16% of 31 decks +5% synergy
Starlight Spectacular
13% of 30 decks +13% synergy
Pariah
13% of 31 decks +12% synergy
Brave the Sands
13% of 31 decks +11% synergy
Aura of Silence
13% of 31 decks +11% synergy
Blind Obedience
13% of 31 decks +6% synergy
Out of Time
10% of 31 decks +9% synergy
Rule of Law
10% of 31 decks +8% synergy
Deafening Silence
10% of 31 decks +7% synergy
Grasp of Fate
10% of 31 decks +6% synergy
Planeswalkers
Elspeth, Knight-Errant
13% of 31 decks +12% synergy
Utility Lands
Great Furnace
33% of 9 decks +28% synergy
Inventors' Fair
32% of 31 decks +28% synergy
Ancient Tomb
32% of 31 decks +22% synergy
Nykthos, Shrine to Nyx
29% of 31 decks +23% synergy
Eiganjo, Seat of the Empire
29% of 31 decks +20% synergy
Minas Tirith
26% of 19 decks +17% synergy
Ancient Den
26% of 31 decks +21% synergy
Hall of Heliod's Generosity
23% of 31 decks +16% synergy
Buried Ruin
19% of 31 decks +14% synergy
Darksteel Citadel
16% of 31 decks +12% synergy
War Room
16% of 31 decks +10% synergy
Treasure Vault
13% of 31 decks +10% synergy
Maze of Ith
13% of 31 decks +10% synergy
Emeria, the Sky Ruin
13% of 31 decks +10% synergy
Command Beacon
13% of 31 decks +8% synergy
Yavimaya, Cradle of Growth
13% of 31 decks +4% synergy
Reliquary Tower
13% of 31 decks -17% synergy
Nephalia Academy
10% of 31 decks +10% synergy
Karoo
10% of 31 decks +9% synergy
Field of the Dead
10% of 31 decks +6% synergy
Urborg, Tomb of Yawgmoth
10% of 31 decks -0% synergy
Mana Artifacts
Sol Ring
94% of 31 decks +9% synergy
Arcane Signet
61% of 31 decks -11% synergy
Mana Crypt
45% of 31 decks +37% synergy
Talisman of Conviction
44% of 9 decks +21% synergy
Talisman of Hierarchy
43% of 7 decks +18% synergy
Mox Opal
35% of 31 decks +31% synergy
Mana Vault
26% of 31 decks +19% synergy
Mox Amber
23% of 31 decks +18% synergy
Mox Diamond
16% of 31 decks +12% synergy
Chrome Mox
16% of 31 decks +10% synergy
Lotus Petal
16% of 31 decks +9% synergy
Mind Stone
16% of 31 decks -1% synergy
Fellwar Stone
16% of 31 decks -5% synergy
Nyx Lotus
13% of 31 decks +11% synergy
Grim Monolith
13% of 31 decks +11% synergy
Basalt Monolith
13% of 31 decks +10% synergy
Liquimetal Torque
13% of 31 decks +9% synergy
Chromatic Orrery
10% of 31 decks +8% synergy
Commander's Sphere
10% of 31 decks -6% synergy
Thought Vessel
10% of 31 decks -7% synergy
Lands
Temple Garden
57% of 7 decks +17% synergy
Sacred Foundry
56% of 9 decks +19% synergy
Adarkar Wastes
50% of 6 decks +33% synergy
Hallowed Fountain
50% of 6 decks +9% synergy
Command Tower
45% of 31 decks -29% synergy
Sunpetal Grove
43% of 7 decks +19% synergy
Vault of Champions
43% of 7 decks +17% synergy
Caves of Koilos
43% of 7 decks +15% synergy
Spectator Seating
33% of 9 decks +8% synergy
Battlefield Forge
33% of 9 decks +8% synergy
Clifftop Retreat
33% of 9 decks +5% synergy
Flooded Strand
23% of 31 decks +12% synergy
Cavern of Souls
19% of 31 decks +12% synergy
Windswept Heath
19% of 31 decks +9% synergy
Arid Mesa
19% of 31 decks +9% synergy
Exotic Orchard
19% of 31 decks -16% synergy
Wooded Foothills
16% of 31 decks +6% synergy
Marsh Flats
16% of 31 decks +5% synergy
Myriad Landscape
16% of 31 decks -3% synergy
Gemstone Caverns
13% of 31 decks +8% synergy
Prismatic Vista
13% of 31 decks +7% synergy
City of Brass
13% of 31 decks +5% synergy
Scalding Tarn
13% of 31 decks +2% synergy
Spire of Industry
10% of 31 decks +7% synergy
Mana Confluence
10% of 31 decks +2% synergy
Path of Ancestry
10% of 31 decks -12% synergy