Halo Fountain + Phyrexian Altar + Karn, Silver Golem
Halo Fountain
Phyrexian Altar
Karn, Silver Golem
Requires
Halo Fountain must be on the battlefield.
Phyrexian Altar must be on the battlefield.
Karn, Silver Golem must be on the battlefield.
Halo Fountain does not have summoning sickness.
Mana needed: 
Steps
- Activate Karn by paying , causing Halo Fountain to become an artifact creature until end of turn.
- Activate Halo Fountain's first ability by paying , tapping it and untapping it, creating a 1/1 Citizen creature token.
- Activate Phyrexian Altar by sacrificing the Citizen, adding .
- Repeat from step 2.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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0.05% of 4386 decks
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New Cards
Funeral Room // Awakening Hall
100% of 1 decks
+95% synergy
Reluctant Role Model
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+97% synergy
High Synergy Cards
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86% of 7 decks
+78% synergy
Thousand-Year Elixir
57% of 7 decks
+55% synergy
Enlightened Tutor
71% of 7 decks
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Inventors' Fair
57% of 7 decks
+53% synergy
Buried Ruin
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Ancient Den
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Generous Gift
71% of 7 decks
+46% synergy
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Top Cards
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100% of 2 decks
+93% synergy
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+93% synergy
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+63% synergy
Cirith Ungol Patrol
50% of 2 decks
+50% synergy
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Denethor, Ruling Steward
50% of 2 decks
+48% synergy
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50% of 2 decks
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50% of 2 decks
+40% synergy
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Metalworker
43% of 7 decks
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40% of 5 decks
+40% synergy
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Saradoc, Master of Buckland
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+33% synergy
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33% of 3 decks
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Zirda, the Dawnwaker
33% of 3 decks
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Prosper, Tome-Bound
33% of 3 decks
+31% synergy
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+30% synergy
Feldon of the Third Path
33% of 3 decks
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Juri, Master of the Revue
33% of 3 decks
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Rosie Cotton of South Lane
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Reckless Fireweaver
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+25% synergy
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29% of 7 decks
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Ao, the Dawn Sky
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29% of 7 decks
+27% synergy
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29% of 7 decks
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Lion Sash
29% of 7 decks
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Instants
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43% of 7 decks
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Lethal Scheme
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+38% synergy
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33% of 3 decks
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+1% synergy
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29% of 7 decks
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25% of 4 decks
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20% of 5 decks
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Stinging Study
20% of 5 decks
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Costly Plunder
20% of 5 decks
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Inkshield
20% of 5 decks
+14% synergy
Fracture
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Village Rites
20% of 5 decks
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Deadly Dispute
20% of 5 decks
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+24% synergy
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+31% synergy
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Fabrication Module
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Karn's Sylex
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Decoction Module
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Memory Jar
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Myr Turbine
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Enchantments
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Resourceful Defense
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+27% synergy
Swift Reconfiguration
29% of 7 decks
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Smuggler's Share
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Biotransference
20% of 5 decks
+19% synergy
Greed
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+18% synergy
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20% of 5 decks
+9% synergy
Phyrexian Arena
20% of 5 decks
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Skrelv's Hive
17% of 6 decks
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14% of 7 decks
+14% synergy
Starlight Spectacular
14% of 7 decks
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Far Traveler
14% of 7 decks
+13% synergy
Together Forever
14% of 7 decks
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Ajani's Welcome
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14% of 7 decks
+13% synergy
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+12% synergy
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14% of 7 decks
+9% synergy
Battles
Invasion of New Capenna
50% of 2 decks
+49% synergy
Planeswalkers
Karn, the Great Creator
43% of 7 decks
+42% synergy
Utility Lands
Tree of Tales
100% of 1 decks
+98% synergy
Spymaster's Vault
100% of 1 decks
+96% synergy
Academy Ruins
100% of 1 decks
+95% synergy
Great Furnace
100% of 3 decks
+94% synergy
Seat of the Synod
100% of 1 decks
+94% synergy
Vault of Whispers
60% of 5 decks
+56% synergy
Restless Fortress
50% of 2 decks
+47% synergy
Darksteel Citadel
43% of 7 decks
+39% synergy
Urza's Saga
43% of 7 decks
+36% synergy
Spawning Pool
40% of 5 decks
+40% synergy
Hostile Hostel
40% of 5 decks
+40% synergy
Shambling Vent
40% of 5 decks
+38% synergy
Phyrexian Tower
40% of 5 decks
+31% synergy
Bojuka Bog
40% of 5 decks
+10% synergy
The Monumental Facade
33% of 6 decks
+33% synergy
Cave of the Frost Dragon
29% of 7 decks
+28% synergy
Nesting Grounds
29% of 7 decks
+27% synergy
Urza's Power Plant
29% of 7 decks
+27% synergy
Urza's Mine
29% of 7 decks
+27% synergy
Urza's Tower
29% of 7 decks
+27% synergy
Treasure Vault
29% of 7 decks
+26% synergy
Ancient Tomb
29% of 7 decks
+18% synergy
Takenuma, Abandoned Mire
20% of 5 decks
+9% synergy
Vault of the Archangel
20% of 5 decks
+9% synergy
Sequestered Stash
14% of 7 decks
+14% synergy
Remote Farm
14% of 7 decks
+14% synergy
Mishra's Workshop
14% of 7 decks
+14% synergy
Phyrexia's Core
14% of 7 decks
+14% synergy
Karoo
14% of 7 decks
+14% synergy
Roadside Reliquary
14% of 7 decks
+14% synergy
Urza's Workshop
14% of 7 decks
+13% synergy
Idyllic Grange
14% of 7 decks
+13% synergy
Crystal Vein
14% of 7 decks
+13% synergy
Mutavault
14% of 7 decks
+13% synergy
Cascading Cataracts
14% of 7 decks
+13% synergy
Vesuva
14% of 7 decks
+13% synergy
Guildless Commons
14% of 7 decks
+13% synergy
Tyrite Sanctum
14% of 7 decks
+12% synergy
Thespian's Stage
14% of 7 decks
+12% synergy
Emeria, the Sky Ruin
14% of 7 decks
+11% synergy
Command Beacon
14% of 7 decks
+10% synergy
Karn's Bastion
14% of 7 decks
+9% synergy
Nykthos, Shrine to Nyx
14% of 7 decks
+9% synergy
Eiganjo, Seat of the Empire
14% of 7 decks
+5% synergy
Temple of the False God
14% of 7 decks
+5% synergy
Reliquary Tower
14% of 7 decks
-15% synergy
Mana Artifacts
Gruul Cluestone
100% of 1 decks
+100% synergy
Simic Cluestone
100% of 1 decks
+100% synergy
Izzet Cluestone
100% of 1 decks
+99% synergy
Midnight Clock
100% of 1 decks
+95% synergy
Timeless Lotus
100% of 1 decks
+86% synergy
Sol Ring
71% of 7 decks
-13% synergy
Arcane Signet
57% of 7 decks
-15% synergy
Staff of Compleation
50% of 6 decks
+49% synergy
Cursed Mirror
33% of 3 decks
+28% synergy
Vexing Puzzlebox
29% of 7 decks
+28% synergy
Chromatic Orrery
29% of 7 decks
+27% synergy
Basalt Monolith
29% of 7 decks
+26% synergy
Liquimetal Torque
29% of 7 decks
+25% synergy
Mox Opal
29% of 7 decks
+24% synergy
Everflowing Chalice
29% of 7 decks
+24% synergy
Lantern of Revealing
14% of 7 decks
+14% synergy
Honored Heirloom
14% of 7 decks
+14% synergy
Empowered Autogenerator
14% of 7 decks
+14% synergy
Cultivator's Caravan
14% of 7 decks
+14% synergy
The Mightstone and Weakstone
14% of 7 decks
+13% synergy
Skyclave Relic
14% of 7 decks
+13% synergy
Darksteel Ingot
14% of 7 decks
+13% synergy
Replicating Ring
14% of 7 decks
+13% synergy
Patriar's Seal
14% of 7 decks
+12% synergy
Grim Monolith
14% of 7 decks
+12% synergy
Relic of Legends
14% of 7 decks
+12% synergy
Worn Powerstone
14% of 7 decks
+12% synergy
Gilded Lotus
14% of 7 decks
+11% synergy
Mox Amber
14% of 7 decks
+10% synergy
Mox Diamond
14% of 7 decks
+10% synergy
Jeweled Lotus
14% of 7 decks
+9% synergy
Chrome Mox
14% of 7 decks
+8% synergy
Mana Vault
14% of 7 decks
+8% synergy
Lotus Petal
14% of 7 decks
+8% synergy
Mana Crypt
14% of 7 decks
+6% synergy
Chromatic Lantern
14% of 7 decks
+5% synergy
Commander's Sphere
14% of 7 decks
-1% synergy
Fellwar Stone
14% of 7 decks
-7% synergy
Lands
Ballroom
100% of 1 decks
+100% synergy
Slagwoods Bridge
100% of 1 decks
+97% synergy
Tanglepool Bridge
100% of 1 decks
+97% synergy
Darkmoss Bridge
100% of 1 decks
+97% synergy
Mistvault Bridge
100% of 1 decks
+95% synergy
Silverbluff Bridge
100% of 1 decks
+94% synergy
Razortide Bridge
100% of 1 decks
+93% synergy
The World Tree
100% of 1 decks
+67% synergy
Drossforge Bridge
67% of 3 decks
+62% synergy
Rustvale Bridge
67% of 3 decks
+61% synergy
Vault of Champions
60% of 5 decks
+34% synergy
Command Tower
57% of 7 decks
-17% synergy
Public Thoroughfare
50% of 2 decks
+50% synergy
Scene of the Crime
50% of 2 decks
+49% synergy
Goldmire Bridge
40% of 5 decks
+35% synergy
Brightclimb Pathway
40% of 5 decks
+30% synergy
Fetid Heath
40% of 5 decks
+29% synergy
Sundown Pass
33% of 3 decks
+18% synergy
Haunted Ridge
33% of 3 decks
+17% synergy
Spectator Seating
33% of 3 decks
+8% synergy
Luxury Suite
33% of 3 decks
+7% synergy
Clifftop Retreat
33% of 3 decks
+5% synergy
Dragonskull Summit
33% of 3 decks
+2% synergy
Smoldering Marsh
33% of 3 decks
+1% synergy
Sacred Foundry
33% of 3 decks
-3% synergy
Blood Crypt
33% of 3 decks
-5% synergy
Power Depot
29% of 7 decks
+28% synergy
Path of Ancestry
29% of 7 decks
+7% synergy
Exotic Orchard
29% of 7 decks
-7% synergy
Concealed Courtyard
20% of 5 decks
+14% synergy
Shattered Sanctum
20% of 5 decks
+7% synergy
Isolated Chapel
20% of 5 decks
-8% synergy
Caves of Koilos
20% of 5 decks
-8% synergy
Godless Shrine
20% of 5 decks
-21% synergy
The Mycosynth Gardens
17% of 6 decks
+14% synergy
Hall of Oracles
14% of 7 decks
+14% synergy
Glimmervoid
14% of 7 decks
+14% synergy
Holdout Settlement
14% of 7 decks
+14% synergy
Prismatic Vista
14% of 7 decks
+9% synergy
Cavern of Souls
14% of 7 decks
+7% synergy
Windswept Heath
14% of 7 decks
+4% synergy
Arid Mesa
14% of 7 decks
+4% synergy
Flooded Strand
14% of 7 decks
+4% synergy
Marsh Flats
14% of 7 decks
+3% synergy