Halo Fountain + Aphetto Alchemist + Phyrexian Altar

Halo Fountain
Aphetto Alchemist
Phyrexian Altar

Requires
Halo Fountain must be on the battlefield. Aphetto Alchemist must be on the battlefield. Phyrexian Altar must be on the battlefield. Aphetto Alchemist does not have summoning sickness. Mana needed:
Steps
  1. Activate Aphetto Alchemist by tapping it, targeting Halo Fountain.
  2. Holding priority, activate Halo Fountain's first ability by paying , tapping it and untapping Aphetto Alchemist, creating a 1/1 Citizen creature token.
  3. Resolve the Aphetto Alchemist 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
0.44% of 1829 decks 8 decks
Shorikai, Genesis Engine
0.01% of 17286 decks 2 decks
Saint Traft and Rem Karolus
0.14% of 1480 decks 2 decks
Ertai, the Corrupted
0.27% of 732 decks 2 decks
Derevi, Empyrial Tactician
0.01% of 7409 decks 1 decks
Ellie and Alan, Paleontologists
0.08% of 1331 decks 1 decks
Volo, Itinerant Scholar // Noble Heritage
1.92% of 52 decks 1 decks
Tocasia, Dig Site Mentor
0.08% of 1233 decks 1 decks
Belisarius Cawl
0.13% of 767 decks 1 decks
High Synergy Cards
Minamo, School at Water's Edge
68% of 19 decks +64% synergy
Ioreth of the Healing House
60% of 10 decks +58% synergy
Vizier of Tumbling Sands
58% of 19 decks +57% synergy
Freed from the Real
58% of 19 decks +56% synergy
Phyrexian Tower
60% of 10 decks +52% synergy
Thousand-Year Elixir
53% of 19 decks +50% synergy
Sting, the Glinting Dagger
50% of 8 decks +48% synergy
Pemmin's Aura
47% of 19 decks +46% synergy
Illusionist's Bracers
47% of 19 decks +46% synergy
Intruder Alarm
47% of 19 decks +45% synergy
Top Cards
Ashnod's Altar
53% of 19 decks +45% synergy
Swords to Plowshares
53% of 19 decks -10% synergy
Drumbellower
47% of 19 decks +45% synergy
Swiftfoot Boots
47% of 19 decks +20% synergy
Cyclonic Rift
47% of 19 decks +19% synergy
Fatestitcher
42% of 19 decks +41% synergy
Patriar's Seal
42% of 19 decks +40% synergy
Mother of Runes
42% of 19 decks +35% synergy
Skullclamp
42% of 19 decks +30% synergy
Diabolic Intent
40% of 10 decks +31% synergy
Creatures
Kelpie Guide
37% of 19 decks +36% synergy
Esper Sentinel
37% of 19 decks +16% synergy
Zur the Enchanter
30% of 10 decks +26% synergy
Agent of Treachery
26% of 19 decks +24% synergy
Giver of Runes
26% of 19 decks +24% synergy
Adarkar Valkyrie
21% of 19 decks +20% synergy
Arcanis the Omnipotent
21% of 19 decks +20% synergy
Bennie Bracks, Zoologist
21% of 19 decks +19% synergy
Skrelv, Defector Mite
20% of 15 decks +16% synergy
Mondrak, Glory Dominus
20% of 15 decks +11% synergy
Loran of the Third Path
19% of 16 decks +11% synergy
Beguiler of Wills
16% of 19 decks +16% synergy
Aura Thief
16% of 19 decks +16% synergy
Clever Conjurer
16% of 19 decks +15% synergy
White Plume Adventurer
16% of 19 decks +14% synergy
Thassa, Deep-Dwelling
16% of 19 decks +13% synergy
Mentor of the Meek
16% of 19 decks +10% synergy
Instants
Dramatic Reversal
37% of 19 decks +31% synergy
Counterspell
37% of 19 decks -6% synergy
Cerulean Wisps
32% of 19 decks +31% synergy
Mana Drain
32% of 19 decks +16% synergy
Void Rend
30% of 10 decks +15% synergy
Anguished Unmaking
30% of 10 decks +6% synergy
Energy Arc
26% of 19 decks +26% synergy
Cloudshift
26% of 19 decks +23% synergy
Fierce Guardianship
26% of 19 decks +8% synergy
Teferi's Protection
26% of 19 decks +6% synergy
Refocus
21% of 19 decks +21% synergy
Dovin's Veto
21% of 19 decks +2% synergy
Arcane Denial
21% of 19 decks +1% synergy
An Offer You Can't Refuse
21% of 19 decks +1% synergy
Clever Concealment
20% of 15 decks +15% synergy
To Arms!
16% of 19 decks +15% synergy
Sejiri Shelter
16% of 19 decks +12% synergy
Ghostly Flicker
16% of 19 decks +11% synergy
Force of Negation
16% of 19 decks +7% synergy
Force of Will
16% of 19 decks +5% synergy
Swan Song
16% of 19 decks -1% synergy
Enlightened Tutor
16% of 19 decks -2% synergy
Brainstorm
16% of 19 decks -6% synergy
Path to Exile
16% of 19 decks -30% synergy
Sorceries
Cultivate
100% of 3 decks +54% synergy
Demonic Tutor
30% of 10 decks +8% synergy
Austere Command
26% of 19 decks +13% synergy
Bribery
16% of 19 decks +15% synergy
Dance of the Manse
16% of 19 decks +11% synergy
Farewell
16% of 19 decks +2% synergy
Utility Artifacts
Magewright's Stone
37% of 19 decks +36% synergy
Lightning Greaves
37% of 19 decks +11% synergy
Rings of Brighthearth
26% of 19 decks +25% synergy
Isochron Scepter
26% of 19 decks +24% synergy
Unbender Tine
21% of 19 decks +21% synergy
Thornbite Staff
21% of 19 decks +20% synergy
Throne of the God-Pharaoh
21% of 19 decks +20% synergy
Meekstone
16% of 19 decks +15% synergy
Conjurer's Closet
16% of 19 decks +14% synergy
Unwinding Clock
16% of 19 decks +13% synergy
Shorikai, Genesis Engine
16% of 19 decks +13% synergy
Enchantments
Retreat to Coralhelm
37% of 19 decks +34% synergy
Anointed Procession
37% of 19 decks +28% synergy
Rhystic Study
37% of 19 decks +9% synergy
Smothering Tithe
32% of 19 decks +7% synergy
Mystic Remora
26% of 19 decks +8% synergy
Mind Over Matter
16% of 19 decks +15% synergy
Planeswalkers
Teferi, Who Slows the Sunset
37% of 19 decks +34% synergy
Jace, Ingenious Mind-Mage
16% of 19 decks +16% synergy
Utility Lands
Reliquary Tower
37% of 19 decks +7% synergy
Lotus Field
21% of 19 decks +20% synergy
Arcane Lighthouse
21% of 19 decks +20% synergy
Academy Ruins
21% of 19 decks +16% synergy
Hall of Heliod's Generosity
21% of 19 decks +14% synergy
Detection Tower
16% of 19 decks +15% synergy
High Market
16% of 19 decks +13% synergy
Ancient Den
16% of 19 decks +10% synergy
Seat of the Synod
16% of 19 decks +9% synergy
Urza's Saga
16% of 19 decks +9% synergy
Ancient Tomb
16% of 19 decks +5% synergy
Mana Artifacts
Arcane Signet
84% of 19 decks +12% synergy
Sol Ring
84% of 19 decks -0% synergy
Azorius Signet
47% of 19 decks +21% synergy
Dimir Signet
40% of 10 decks +10% synergy
Thought Vessel
26% of 19 decks +10% synergy
Fellwar Stone
21% of 19 decks -0% synergy
Talisman of Progress
21% of 19 decks -2% synergy
Mana Vault
16% of 19 decks +9% synergy
Mana Crypt
16% of 19 decks +7% synergy
Mind Stone
16% of 19 decks -2% synergy
Lands
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79% of 19 decks +5% synergy
Hallowed Fountain
63% of 19 decks +22% synergy
Vault of Champions
60% of 10 decks +34% synergy
Raffine's Tower
60% of 10 decks +32% synergy
Godless Shrine
60% of 10 decks +19% synergy
Watery Grave
60% of 10 decks +19% synergy
Sea of Clouds
58% of 19 decks +32% synergy
Morphic Pool
50% of 10 decks +24% synergy
Flooded Strand
42% of 19 decks +32% synergy
Exotic Orchard
42% of 19 decks +7% synergy
Shattered Sanctum
40% of 10 decks +27% synergy
Deserted Beach
37% of 19 decks +21% synergy
Prairie Stream
37% of 19 decks +3% synergy
Mystic Gate
32% of 19 decks +26% synergy
Glacial Fortress
32% of 19 decks +6% synergy
Shipwreck Marsh
30% of 10 decks +11% synergy
Arcane Sanctum
30% of 10 decks +2% synergy
Reflecting Pool
26% of 19 decks +21% synergy
Polluted Delta
26% of 19 decks +15% synergy
Marsh Flats
21% of 19 decks +10% synergy
Adarkar Wastes
21% of 19 decks +4% synergy
Nimbus Maze
16% of 19 decks +11% synergy
Prismatic Vista
16% of 19 decks +10% synergy
Razortide Bridge
16% of 19 decks +9% synergy
City of Brass
16% of 19 decks +8% synergy
Fabled Passage
16% of 19 decks +7% synergy
Tundra
16% of 19 decks +2% synergy
Azorius Chancery
16% of 19 decks +1% synergy
Evolving Wilds
16% of 19 decks -5% synergy