Halo Fountain
Phyrexian Altar
Karn, the Great Creator

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
Halo Fountain does not have summoning sickness.
available

   Steps

How does this combo work?
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

What do I get from this combo?
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Myrel, Shield of Argive
0.0%inclusion3 decks8.32K decks
Ao, the Dawn Sky
0.3%inclusion2 decks679 decks
Jan Jansen, Chaos Crafter
0.0%inclusion2 decks5.12K decks
Oswald Fiddlebender
0.0%inclusion1 decks2.21K decks
Felisa, Fang of Silverquill
0.0%inclusion1 decks2.48K decks
Osgir, the Reconstructor
0.0%inclusion1 decks4.95K decks
The Jolly Balloon Man
0.0%inclusion1 decks11.3K decks
The Necrobloom
0.0%inclusion1 decks23.7K decks
Rin and Seri, Inseparable
0.0%inclusion1 decks22.6K decks
Ketramose, the New Dawn
0.0%inclusion1 decks9.64K decks
Breya, Etherium Shaper
0.0%inclusion1 decks21.5K decks
Jetmir, Nexus of Revels
0.0%inclusion1 decks9.66K decks
Belisarius Cawl
0.1%inclusion1 decks1.26K decks
High Synergy Cards
Esper Sentinel
71%inclusion12 decks17 decks
52%synergy
Mondrak, Glory Dominus
47%inclusion8 decks17 decks
41%synergy
Inventors' Fair
41%inclusion7 decks17 decks
37%synergy
Sensei's Divining Top
41%inclusion7 decks17 decks
37%synergy
Skullclamp
47%inclusion8 decks17 decks
36%synergy
Urza's Saga
41%inclusion7 decks17 decks
34%synergy
Unwinding Clock
35%inclusion6 decks17 decks
33%synergy
Idyllic Tutor
35%inclusion6 decks17 decks
31%synergy
Ashnod's Altar
35%inclusion6 decks17 decks
29%synergy
Eiganjo, Seat of the Empire
35%inclusion6 decks17 decks
29%synergy
Top Cards
Swords to Plowshares
65%inclusion11 decks17 decks
4%synergy
Path to Exile
59%inclusion10 decks17 decks
12%synergy
Oswald Fiddlebender
29%inclusion5 decks17 decks
28%synergy
Walking Ballista
29%inclusion5 decks17 decks
27%synergy
Ojer Taq, Deepest Foundation
29%inclusion5 decks17 decks
26%synergy
Lightning Greaves
29%inclusion5 decks17 decks
5%synergy
Swiftfoot Boots
29%inclusion5 decks17 decks
3%synergy
Mycosynth Lattice
24%inclusion4 decks17 decks
23%synergy
Mirage Mirror
24%inclusion4 decks17 decks
22%synergy
Thalia, Guardian of Thraben
24%inclusion4 decks17 decks
22%synergy
Game Changers
Demonic Tutor
67%inclusion4 decks6 decks
48%synergy
Enlightened Tutor
59%inclusion10 decks17 decks
44%synergy
Vampiric Tutor
50%inclusion3 decks6 decks
36%synergy
Mana Vault
41%inclusion7 decks17 decks
35%synergy
Drannith Magistrate
35%inclusion6 decks17 decks
31%synergy
The One Ring
35%inclusion6 decks17 decks
27%synergy
Smothering Tithe
29%inclusion5 decks17 decks
9%synergy
Mox Diamond
24%inclusion4 decks17 decks
19%synergy
Chrome Mox
24%inclusion4 decks17 decks
18%synergy
Ancient Tomb
24%inclusion4 decks17 decks
14%synergy
Creatures
Aven Mindcensor
24%inclusion4 decks17 decks
21%synergy
Heliod, Sun-Crowned
24%inclusion4 decks17 decks
20%synergy
Elesh Norn, Grand Cenobite
24%inclusion4 decks17 decks
20%synergy
Archivist of Oghma
24%inclusion4 decks17 decks
19%synergy
Solemn Simulacrum
24%inclusion4 decks17 decks
12%synergy
Serra Redeemer
18%inclusion3 decks17 decks
17%synergy
Eidolon of Rhetoric
18%inclusion3 decks17 decks
17%synergy
Ethersworn Canonist
18%inclusion3 decks17 decks
16%synergy
Archon of Emeria
18%inclusion3 decks17 decks
16%synergy
Scrap Trawler
18%inclusion3 decks17 decks
16%synergy
Solitude
18%inclusion3 decks17 decks
16%synergy
Lion Sash
18%inclusion3 decks17 decks
16%synergy
Thalia, Heretic Cathar
18%inclusion3 decks17 decks
15%synergy
Ocelot Pride
18%inclusion3 decks17 decks
15%synergy
Academy Manufactor
18%inclusion3 decks17 decks
14%synergy
Foundry Inspector
18%inclusion3 decks17 decks
14%synergy
Ornithopter of Paradise
18%inclusion3 decks17 decks
13%synergy
Mother of Runes
18%inclusion3 decks17 decks
12%synergy
Witch Enchanter
18%inclusion3 decks17 decks
10%synergy
Grand Abolisher
18%inclusion3 decks17 decks
9%synergy
Instants
Dispatch
18%inclusion3 decks17 decks
12%synergy
Silence
18%inclusion3 decks17 decks
11%synergy
Akroma's Will
18%inclusion3 decks17 decks
8%synergy
Teferi's Protection
18%inclusion3 decks17 decks
2%synergy
Generous Gift
18%inclusion3 decks17 decks
-3%synergy
Sorceries
Sevinne's Reclamation
24%inclusion4 decks17 decks
16%synergy
Utility Artifacts
Pearl Medallion
24%inclusion4 decks17 decks
21%synergy
Chalice of the Void
18%inclusion3 decks17 decks
18%synergy
Liquimetal Coating
18%inclusion3 decks17 decks
17%synergy
Clock of Omens
18%inclusion3 decks17 decks
17%synergy
Moonsilver Key
18%inclusion3 decks17 decks
17%synergy
Krark-Clan Ironworks
18%inclusion3 decks17 decks
17%synergy
Soul-Guide Lantern
18%inclusion3 decks17 decks
17%synergy
Vexing Bauble
18%inclusion3 decks17 decks
16%synergy
Altar of Dementia
18%inclusion3 decks17 decks
16%synergy
Archaeomancer's Map
18%inclusion3 decks17 decks
14%synergy
Enchantments
Goblin Bombardment
43%inclusion3 decks7 decks
37%synergy
Impact Tremors
43%inclusion3 decks7 decks
33%synergy
Anointed Procession
24%inclusion4 decks17 decks
17%synergy
Rest in Peace
18%inclusion3 decks17 decks
16%synergy
Trouble in Pairs
18%inclusion3 decks17 decks
13%synergy
Cathars' Crusade
18%inclusion3 decks17 decks
12%synergy
Land Tax
18%inclusion3 decks17 decks
11%synergy
Authority of the Consuls
18%inclusion3 decks17 decks
11%synergy
Artifacts
Sol Ring
88%inclusion15 decks17 decks
5%synergy
Arcane Signet
71%inclusion12 decks17 decks
-1%synergy
Mox Opal
41%inclusion7 decks17 decks
37%synergy
Pearl Medallion
24%inclusion4 decks17 decks
21%synergy
Mox Amber
24%inclusion4 decks17 decks
19%synergy
Chalice of the Void
18%inclusion3 decks17 decks
18%synergy
Liquimetal Coating
18%inclusion3 decks17 decks
17%synergy
Jeweled Lotus
18%inclusion3 decks17 decks
17%synergy
Mana Crypt
18%inclusion3 decks17 decks
17%synergy
Clock of Omens
18%inclusion3 decks17 decks
17%synergy
Moonsilver Key
18%inclusion3 decks17 decks
17%synergy
Krark-Clan Ironworks
18%inclusion3 decks17 decks
17%synergy
Soul-Guide Lantern
18%inclusion3 decks17 decks
17%synergy
Vexing Bauble
18%inclusion3 decks17 decks
16%synergy
Altar of Dementia
18%inclusion3 decks17 decks
16%synergy
Liquimetal Torque
18%inclusion3 decks17 decks
15%synergy
Archaeomancer's Map
18%inclusion3 decks17 decks
14%synergy
Mind Stone
18%inclusion3 decks17 decks
4%synergy
Utility Lands
Great Furnace
43%inclusion3 decks7 decks
37%synergy
Nykthos, Shrine to Nyx
24%inclusion4 decks17 decks
18%synergy
Ancient Den
24%inclusion4 decks17 decks
18%synergy
Maze of Ith
18%inclusion3 decks17 decks
15%synergy
Darksteel Citadel
18%inclusion3 decks17 decks
14%synergy
Three Tree City
18%inclusion3 decks17 decks
13%synergy
Hall of Heliod's Generosity
18%inclusion3 decks17 decks
11%synergy
Mana Artifacts
Sol Ring
88%inclusion15 decks17 decks
5%synergy
Arcane Signet
71%inclusion12 decks17 decks
-1%synergy
Mox Opal
41%inclusion7 decks17 decks
37%synergy
Mox Amber
24%inclusion4 decks17 decks
19%synergy
Jeweled Lotus
18%inclusion3 decks17 decks
17%synergy
Mana Crypt
18%inclusion3 decks17 decks
17%synergy
Liquimetal Torque
18%inclusion3 decks17 decks
15%synergy
Mind Stone
18%inclusion3 decks17 decks
4%synergy
Lands
Sacred Foundry
57%inclusion4 decks7 decks
20%synergy
Command Tower
53%inclusion9 decks17 decks
-21%synergy
Vault of Champions
50%inclusion3 decks6 decks
27%synergy
Godless Shrine
50%inclusion3 decks6 decks
8%synergy
Clifftop Retreat
43%inclusion3 decks7 decks
7%synergy
Marsh Flats
24%inclusion4 decks17 decks
13%synergy
Bloodstained Mire
24%inclusion4 decks17 decks
12%synergy
Cavern of Souls
18%inclusion3 decks17 decks
10%synergy
Arid Mesa
18%inclusion3 decks17 decks
8%synergy
Flooded Strand
18%inclusion3 decks17 decks
6%synergy
Evolving Wilds
18%inclusion3 decks17 decks
-3%synergy
Exotic Orchard
18%inclusion3 decks17 decks
-19%synergy