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
0.49% of 1829 decks 9 decks
Ertai, the Corrupted
0.82% of 732 decks 6 decks
Shorikai, Genesis Engine
0.01% of 17286 decks 2 decks
Gavi, Nest Warden
0.03% of 3873 decks 1 decks
Saint Traft and Rem Karolus
0.07% of 1480 decks 1 decks
Rubinia Soulsinger
0.14% of 728 decks 1 decks
Tocasia, Dig Site Mentor
0.08% of 1233 decks 1 decks
Bjorna, Nightfall Alchemist // Othelm, Sigardian Outcast
0.36% of 275 decks 1 decks
Dynaheir, Invoker Adept
0.07% of 1378 decks 1 decks
High Synergy Cards
Ioreth of the Healing House
83% of 12 decks +82% synergy
Freed from the Real
74% of 23 decks +72% synergy
Thousand-Year Elixir
70% of 23 decks +67% synergy
Minamo, School at Water's Edge
70% of 23 decks +65% synergy
Pemmin's Aura
52% of 23 decks +51% synergy
Fatestitcher
48% of 23 decks +47% synergy
Aphetto Alchemist
48% of 23 decks +47% synergy
Kelpie Guide
48% of 23 decks +47% synergy
Illusionist's Bracers
48% of 23 decks +47% synergy
Drumbellower
48% of 23 decks +45% synergy
Top Cards
Patriar's Seal
57% of 23 decks +55% synergy
Counterspell
57% of 23 decks +14% synergy
Skullclamp
52% of 23 decks +40% synergy
Sting, the Glinting Dagger
44% of 9 decks +43% synergy
Smothering Tithe
43% of 23 decks +18% synergy
Swiftfoot Boots
43% of 23 decks +16% synergy
Cyclonic Rift
43% of 23 decks +16% synergy
Swords to Plowshares
43% of 23 decks -19% synergy
Void Rend
40% of 15 decks +25% synergy
Lightning Greaves
39% of 23 decks +14% synergy
Creatures
Kiora's Follower
100% of 3 decks +94% synergy
Zur the Enchanter
33% of 15 decks +29% synergy
Aura Thief
30% of 23 decks +30% synergy
Mother of Runes
30% of 23 decks +24% synergy
Esper Sentinel
30% of 23 decks +10% synergy
Alela, Artful Provocateur
27% of 15 decks +25% synergy
Mondrak, Glory Dominus
25% of 20 decks +16% synergy
Arcanis the Omnipotent
22% of 23 decks +20% synergy
Baral, Chief of Compliance
22% of 23 decks +19% synergy
The Ever-Changing 'Dane
21% of 14 decks +21% synergy
Ertai Resurrected
21% of 14 decks +18% synergy
Jadar, Ghoulcaller of Nephalia
20% of 15 decks +17% synergy
Blood Artist
20% of 15 decks +8% synergy
Puppeteer
17% of 23 decks +17% synergy
Guile
17% of 23 decks +17% synergy
Lullmage Mentor
17% of 23 decks +17% synergy
Adarkar Valkyrie
17% of 23 decks +17% synergy
Agent of Treachery
17% of 23 decks +15% synergy
Hanna, Ship's Navigator
17% of 23 decks +15% synergy
Giver of Runes
17% of 23 decks +15% synergy
Thassa, Deep-Dwelling
17% of 23 decks +14% synergy
Solemn Simulacrum
17% of 23 decks +3% synergy
Loran of the Third Path
15% of 20 decks +8% synergy
Robaran Mercenaries
14% of 21 decks +14% synergy
Tidewater Minion
13% of 23 decks +13% synergy
Clever Conjurer
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
Dramatic Reversal
35% of 23 decks +29% synergy
Dovin's Veto
35% of 23 decks +15% synergy
Despark
33% of 15 decks +18% synergy
Mana Drain
30% of 23 decks +15% synergy
Teferi's Protection
30% of 23 decks +10% synergy
An Offer You Can't Refuse
30% of 23 decks +10% synergy
Anguished Unmaking
27% of 15 decks +3% synergy
Fierce Guardianship
26% of 23 decks +8% synergy
Negate
26% of 23 decks +3% synergy
Energy Arc
22% of 23 decks +22% synergy
Cloudshift
22% of 23 decks +19% synergy
Swan Song
22% of 23 decks +5% synergy
Arcane Denial
22% of 23 decks +2% synergy
Path to Exile
22% of 23 decks -24% synergy
Vampiric Tutor
20% of 15 decks +2% synergy
Refocus
17% of 23 decks +17% synergy
Enlightened Tutor
17% of 23 decks -0% synergy
Generous Gift
17% of 23 decks -8% synergy
To Arms!
13% of 23 decks +13% 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
Force of Will
13% of 23 decks +2% synergy
Mystical Tutor
13% of 23 decks -2% synergy
Sorceries
Diabolic Intent
33% of 15 decks +25% synergy
Demonic Tutor
33% of 15 decks +11% synergy
Damn
27% of 15 decks +10% synergy
Farewell
22% of 23 decks +8% synergy
Dance of the Manse
17% of 23 decks +13% synergy
Wrath of God
17% of 23 decks +11% synergy
Sevinne's Reclamation
17% of 23 decks +10% synergy
Austere Command
17% of 23 decks +5% synergy
Supreme Verdict
17% of 23 decks +3% synergy
Bribery
13% of 23 decks +12% synergy
Utility Artifacts
The Millennium Calendar
43% of 7 decks +42% synergy
Ashnod's Altar
35% of 23 decks +27% synergy
Magewright's Stone
30% of 23 decks +30% synergy
Isochron Scepter
26% of 23 decks +24% synergy
Thornbite Staff
22% of 23 decks +21% synergy
Unbender Tine
17% of 23 decks +17% synergy
The Golden Throne
15% of 20 decks +14% synergy
Glaring Spotlight
13% of 23 decks +13% synergy
Rings of Brighthearth
13% of 23 decks +11% 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
Rhystic Study
35% of 23 decks +7% synergy
Treacherous Blessing
27% of 15 decks +26% synergy
Bitterblossom
27% of 15 decks +23% synergy
Black Market Connections
27% of 15 decks +16% synergy
Retreat to Coralhelm
26% of 23 decks +24% synergy
Skrelv's Hive
25% of 20 decks +22% synergy
Anointed Procession
22% of 23 decks +13% synergy
Propaganda
22% of 23 decks +10% synergy
Dreadhorde Invasion
20% of 15 decks +17% synergy
Phyrexian Arena
20% of 15 decks +5% synergy
Aura of Dominion
17% of 23 decks +17% synergy
Intruder Alarm
17% of 23 decks +15% 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
Planeswalkers
Teferi, Who Slows the Sunset
17% of 23 decks +15% synergy
Utility Lands
Phyrexian Tower
40% of 15 decks +32% synergy
Reliquary Tower
39% of 23 decks +10% synergy
Hall of Heliod's Generosity
30% of 23 decks +24% synergy
Bojuka Bog
27% of 15 decks -4% 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
Arcane Lighthouse
13% of 23 decks +12% synergy
Inventors' Fair
13% of 23 decks +9% synergy
Academy Ruins
13% of 23 decks +8% synergy
Ancient Tomb
13% of 23 decks +3% synergy
Otawara, Soaring City
13% of 23 decks -4% synergy
Mana Artifacts
Sol Ring
83% of 23 decks -2% synergy
Arcane Signet
78% of 23 decks +6% synergy
Azorius Signet
43% of 23 decks +17% synergy
Dimir Signet
40% of 15 decks +10% synergy
Orzhov Signet
33% of 15 decks +6% synergy
Thought Vessel
26% of 23 decks +9% synergy
Fellwar Stone
26% of 23 decks +5% synergy
Chromatic Lantern
22% of 23 decks +12% synergy
Wand of the Worldsoul
18% of 17 decks +17% synergy
Mana Vault
17% of 23 decks +11% synergy
Mox Opal
13% of 23 decks +9% synergy
Decanter of Endless Water
13% of 23 decks +8% synergy
Chrome Mox
13% of 23 decks +7% synergy
Mana Crypt
13% of 23 decks +4% synergy
Talisman of Progress
13% of 23 decks -10% 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
73% of 15 decks +48% synergy
Raffine's Tower
67% of 15 decks +39% synergy
Sea of Clouds
65% of 23 decks +39% synergy
Hallowed Fountain
61% of 23 decks +20% synergy
Godless Shrine
60% of 15 decks +19% synergy
Exotic Orchard
57% of 23 decks +21% synergy
Morphic Pool
53% of 15 decks +27% synergy
Arcane Sanctum
47% of 15 decks +19% synergy
Shipwreck Marsh
40% of 15 decks +21% synergy
Watery Grave
40% of 15 decks -1% synergy
Flooded Strand
39% of 23 decks +29% synergy
Isolated Chapel
33% of 15 decks +6% synergy
Glacial Fortress
26% of 23 decks +1% synergy
Polluted Delta
22% of 23 decks +10% synergy
Deserted Beach
22% of 23 decks +6% synergy
Shattered Sanctum
20% of 15 decks +7% synergy
Drowned Catacomb
20% of 15 decks -5% 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
Mystic Gate
13% of 23 decks +7% synergy
Mana Confluence
13% of 23 decks +6% synergy
City of Brass
13% of 23 decks +5% 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
Tundra
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