Halo Fountain + Vizier of Tumbling Sands + Phyrexian Altar

Halo Fountain
Vizier of Tumbling Sands
Phyrexian Altar

Requires
Halo Fountain must be on the battlefield. Vizier of Tumbling Sands must be on the battlefield. Phyrexian Altar must be on the battlefield. Vizier of Tumbling Sands does not have summoning sickness. Mana needed:
Steps
  1. Activate Vizier of Tumbling Sands by tapping it, targeting Halo Fountain.
  2. Holding priority, activate Halo Fountain's first ability by paying , tapping it and untapping Vizier of Tumbling Sands, creating a 1/1 Citizen creature token.
  3. Resolve the Vizier of Tumbling Sands ability, untapping Halo Fountain.
  4. Activate Phyrexian Altar by sacrificing the Citizen token, adding .
  5. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Merieke Ri Berit
0.54% of 1860 decks 10 decks
Ertai, the Corrupted
0.82% of 734 decks 6 decks
Shorikai, Genesis Engine
0.01% of 17255 decks 1 decks
Saint Traft and Rem Karolus
0.06% of 1564 decks 1 decks
Dynaheir, Invoker Adept
0.07% of 1351 decks 1 decks
Rubinia Soulsinger
0.14% of 736 decks 1 decks
Tocasia, Dig Site Mentor
0.09% of 1175 decks 1 decks
Gavi, Nest Warden
0.03% of 3844 decks 1 decks
Bjorna, Nightfall Alchemist // Othelm, Sigardian Outcast
0.37% of 272 decks 1 decks
High Synergy Cards
Ioreth of the Healing House
85% of 13 decks +83% synergy
Freed from the Real
78% of 23 decks +76% synergy
Thousand-Year Elixir
74% of 23 decks +72% synergy
Minamo, School at Water's Edge
70% of 23 decks +65% synergy
Pemmin's Aura
57% of 23 decks +55% synergy
Kelpie Guide
52% of 23 decks +51% synergy
Illusionist's Bracers
52% of 23 decks +51% synergy
Drumbellower
52% of 23 decks +50% synergy
Sting, the Glinting Dagger
50% of 10 decks +48% synergy
Fatestitcher
48% of 23 decks +47% synergy
Top Cards
Patriar's Seal
61% of 23 decks +59% synergy
Skullclamp
57% of 23 decks +44% synergy
Counterspell
57% of 23 decks +14% synergy
Aphetto Alchemist
48% of 23 decks +47% synergy
Swiftfoot Boots
48% of 23 decks +20% synergy
Smothering Tithe
43% of 23 decks +19% synergy
Lightning Greaves
43% of 23 decks +18% synergy
Dramatic Reversal
39% of 23 decks +34% synergy
Rhystic Study
39% of 23 decks +11% synergy
Cyclonic Rift
39% of 23 decks +11% synergy
Creatures
Kiora's Follower
100% of 3 decks +94% synergy
Shay Cormac
60% of 5 decks +56% synergy
Aura Thief
35% of 23 decks +35% synergy
Zur the Enchanter
31% of 16 decks +27% synergy
Mother of Runes
30% of 23 decks +24% synergy
Esper Sentinel
30% of 23 decks +10% synergy
Lotho, Corrupt Shirriff
27% of 11 decks +13% synergy
The Ever-Changing 'Dane
27% of 15 decks +26% synergy
Arcanis the Omnipotent
26% of 23 decks +25% synergy
Alela, Artful Provocateur
25% of 16 decks +23% synergy
Mondrak, Glory Dominus
24% of 21 decks +15% synergy
Agent of Treachery
22% of 23 decks +20% synergy
Baral, Chief of Compliance
22% of 23 decks +19% synergy
Thassa, Deep-Dwelling
22% of 23 decks +19% synergy
Ertai Resurrected
20% of 15 decks +17% synergy
Loran of the Third Path
19% of 21 decks +12% synergy
Coffin Queen
19% of 16 decks +19% synergy
Jadar, Ghoulcaller of Nephalia
19% of 16 decks +16% synergy
Blood Artist
19% of 16 decks +7% synergy
Robaran Mercenaries
18% of 22 decks +18% synergy
Puppeteer
17% of 23 decks +17% synergy
Guile
17% of 23 decks +17% synergy
Clever Conjurer
17% of 23 decks +17% synergy
Lullmage Mentor
17% of 23 decks +17% synergy
Adarkar Valkyrie
17% of 23 decks +17% synergy
Hanna, Ship's Navigator
17% of 23 decks +15% synergy
Giver of Runes
17% of 23 decks +15% synergy
Solemn Simulacrum
17% of 23 decks +3% synergy
Tidewater Minion
13% of 23 decks +13% synergy
Callous Oppressor
13% of 23 decks +13% synergy
Empress Galina
13% of 23 decks +13% synergy
White Plume Adventurer
13% of 23 decks +11% synergy
Bennie Bracks, Zoologist
13% of 23 decks +11% synergy
Instants
Swords to Plowshares
39% of 23 decks -24% synergy
Void Rend
38% of 16 decks +23% synergy
Dovin's Veto
35% of 23 decks +16% synergy
An Offer You Can't Refuse
35% of 23 decks +14% synergy
Despark
31% of 16 decks +16% synergy
Anguished Unmaking
31% of 16 decks +7% synergy
Mana Drain
30% of 23 decks +15% synergy
Fierce Guardianship
30% of 23 decks +12% synergy
Teferi's Protection
30% of 23 decks +11% synergy
Energy Arc
26% of 23 decks +26% synergy
Swan Song
26% of 23 decks +10% synergy
Arcane Denial
26% of 23 decks +6% synergy
Negate
26% of 23 decks +3% synergy
Cloudshift
22% of 23 decks +19% synergy
Vampiric Tutor
19% of 16 decks +1% synergy
Refocus
17% of 23 decks +17% synergy
To Arms!
17% of 23 decks +17% synergy
Force of Will
17% of 23 decks +6% synergy
Enlightened Tutor
17% of 23 decks -0% synergy
Generous Gift
17% of 23 decks -8% synergy
Path to Exile
17% of 23 decks -28% synergy
Cerulean Wisps
13% of 23 decks +12% synergy
Narset's Reversal
13% of 23 decks +9% synergy
Ghostly Flicker
13% of 23 decks +8% synergy
Flawless Maneuver
13% of 23 decks +3% synergy
Mystical Tutor
13% of 23 decks -2% synergy
Sorceries
Demonic Tutor
38% of 16 decks +15% synergy
Diabolic Intent
31% of 16 decks +23% synergy
Farewell
26% of 23 decks +13% synergy
Damn
25% of 16 decks +9% synergy
Toxic Deluge
19% of 16 decks +1% synergy
Sevinne's Reclamation
17% of 23 decks +10% synergy
Austere Command
17% of 23 decks +5% synergy
Bribery
13% of 23 decks +12% synergy
Dance of the Manse
13% of 23 decks +9% synergy
Wrath of God
13% of 23 decks +6% synergy
Supreme Verdict
13% of 23 decks -1% synergy
Utility Artifacts
The Millennium Calendar
38% of 8 decks +37% synergy
Magewright's Stone
35% of 23 decks +34% synergy
Ashnod's Altar
35% of 23 decks +27% synergy
Isochron Scepter
30% of 23 decks +28% synergy
Mithril Coat
30% of 10 decks +24% synergy
Thornbite Staff
22% of 23 decks +21% synergy
Unbender Tine
17% of 23 decks +17% synergy
Rings of Brighthearth
17% of 23 decks +16% synergy
The Golden Throne
14% of 21 decks +14% synergy
Glaring Spotlight
13% of 23 decks +13% synergy
Staff of Domination
13% of 23 decks +11% synergy
Conjurer's Closet
13% of 23 decks +11% synergy
Shorikai, Genesis Engine
13% of 23 decks +10% synergy
Enchantments
Mystic Remora
35% of 23 decks +17% synergy
Retreat to Coralhelm
26% of 23 decks +24% synergy
Treacherous Blessing
25% of 16 decks +25% synergy
Bitterblossom
25% of 16 decks +21% synergy
Black Market Connections
25% of 16 decks +14% synergy
Skrelv's Hive
24% of 21 decks +21% synergy
Anointed Procession
22% of 23 decks +13% synergy
Propaganda
22% of 23 decks +10% synergy
Dreadhorde Invasion
19% of 16 decks +16% synergy
Phyrexian Arena
19% of 16 decks +4% synergy
Aura of Dominion
17% of 23 decks +17% synergy
Ghostly Prison
17% of 23 decks +6% synergy
Induced Amnesia
13% of 23 decks +13% synergy
Hatching Plans
13% of 23 decks +13% synergy
Intruder Alarm
13% of 23 decks +11% synergy
Planeswalkers
Teferi, Who Slows the Sunset
13% of 23 decks +11% synergy
Utility Lands
Phyrexian Tower
44% of 16 decks +35% synergy
Reliquary Tower
35% of 23 decks +5% synergy
Bojuka Bog
31% of 16 decks +1% synergy
Hall of Heliod's Generosity
30% of 23 decks +24% synergy
High Market
26% of 23 decks +23% synergy
Lotus Field
17% of 23 decks +16% synergy
Field of the Dead
17% of 23 decks +14% synergy
Urza's Saga
17% of 23 decks +10% synergy
Otawara, Soaring City
17% of 23 decks +0% synergy
Arcane Lighthouse
13% of 23 decks +12% synergy
Inventors' Fair
13% of 23 decks +9% synergy
Mana Artifacts
Sol Ring
83% of 23 decks -2% synergy
Arcane Signet
78% of 23 decks +6% synergy
Dimir Signet
44% of 16 decks +14% synergy
Azorius Signet
43% of 23 decks +18% synergy
Orzhov Signet
38% of 16 decks +10% synergy
Fellwar Stone
30% of 23 decks +9% synergy
Chromatic Lantern
22% of 23 decks +12% synergy
Thought Vessel
22% of 23 decks +5% synergy
Talisman of Dominance
19% of 16 decks -13% synergy
Mana Vault
17% of 23 decks +11% synergy
Talisman of Progress
17% of 23 decks -6% synergy
Wand of the Worldsoul
17% of 18 decks +16% synergy
Lands
Bountiful Promenade
100% of 3 decks +76% synergy
Rejuvenating Springs
100% of 3 decks +71% synergy
Spara's Headquarters
100% of 3 decks +68% synergy
Command Tower
83% of 23 decks +9% synergy
Raugrin Triome
75% of 4 decks +48% synergy
Vault of Champions
69% of 16 decks +43% synergy
Sea of Clouds
65% of 23 decks +39% synergy
Raffine's Tower
62% of 16 decks +35% synergy
Exotic Orchard
57% of 23 decks +21% synergy
Hallowed Fountain
57% of 23 decks +16% synergy
Godless Shrine
56% of 16 decks +16% synergy
Morphic Pool
50% of 16 decks +24% synergy
Arcane Sanctum
44% of 16 decks +16% synergy
Shipwreck Marsh
38% of 16 decks +19% synergy
Watery Grave
38% of 16 decks -3% synergy
Flooded Strand
35% of 23 decks +24% synergy
Isolated Chapel
31% of 16 decks +4% synergy
Polluted Delta
22% of 23 decks +10% synergy
Deserted Beach
22% of 23 decks +6% synergy
Glacial Fortress
22% of 23 decks -4% synergy
Shattered Sanctum
19% of 16 decks +5% synergy
Drowned Catacomb
19% of 16 decks -7% synergy
Scalding Tarn
17% of 23 decks +6% synergy
Marsh Flats
17% of 23 decks +6% synergy
Azorius Chancery
17% of 23 decks +3% synergy
Prairie Stream
17% of 23 decks -16% synergy
Obscura Storefront
13% of 23 decks +12% synergy
Windswept Heath
13% of 23 decks +3% synergy
Arid Mesa
13% of 23 decks +2% synergy
Misty Rainforest
13% of 23 decks +1% synergy
Port Town
13% of 23 decks -3% synergy
Adarkar Wastes
13% of 23 decks -4% synergy
Evolving Wilds
13% of 23 decks -8% synergy
Path of Ancestry
13% of 23 decks -8% synergy