The Jolly Balloon Man + Agatha's Soul Cauldron + Midnight Guard + Phyrexian Altar

The Jolly Balloon Man
Agatha's Soul Cauldron
Midnight Guard
Phyrexian Altar

Requires
The Jolly Balloon Man must be in exile (exiled by Agatha's Soul Cauldron). Agatha's Soul Cauldron must be on the battlefield. Midnight Guard must be on the battlefield. Phyrexian Altar must be on the battlefield. Midnight Guard has at least one +1/+1 counter on it. Midnight Guard does not have summoning sickness. You control at least one additional nonlegendary creature. Mana needed: 1
Steps
  1. Activate Midnight Guard using The Jolly Balloon Man's ability by paying 1 and tapping it, creating a token copy of another nonlegendary creature you control that is a 1/1 Balloon with flying and haste in addition to its other types.
  2. When the creature token enters the battlefield, Midnight Guard triggers, untapping it.
  3. Activate Phyrexian Altar by sacrificing the creature token, adding 1.
  4. Repeat.
Results
Infinite LTB. Infinite ETB. Infinite sacrifice triggers. Infinite death triggers.

The Jolly Balloon Man
0.13% of 1526 decks 2 decks
New Cards
Raucous Carnival
100% of 1 decks +91% synergy
Split Up
50% of 2 decks +43% synergy
Creatures
Wispweaver Angel
100% of 2 decks +100% synergy
Icewind Stalwart
100% of 2 decks +100% synergy
Priest of Urabrask
100% of 2 decks +99% synergy
Felidar Guardian
100% of 2 decks +98% synergy
Restoration Angel
100% of 2 decks +98% synergy
Village Bell-Ringer
100% of 2 decks +97% synergy
Kiki-Jiki, Mirror Breaker
100% of 2 decks +94% synergy
Chained Brute
50% of 2 decks +50% synergy
Lightning Crafter
50% of 2 decks +50% synergy
Ardent Electromancer
50% of 2 decks +50% synergy
Famished Foragers
50% of 2 decks +50% synergy
Catalyst Elemental
50% of 2 decks +50% synergy
Coretapper
50% of 2 decks +50% synergy
Sparring Mummy
50% of 2 decks +50% synergy
Workhorse
50% of 2 decks +50% synergy
Academy Rector
50% of 2 decks +50% synergy
Cathodion
50% of 2 decks +50% synergy
Ganax, Astral Hunter
50% of 2 decks +50% synergy
Tuktuk Rubblefort
50% of 2 decks +50% synergy
Redcap Gutter-Dweller
50% of 2 decks +50% synergy
Fanatic of Mogis
50% of 2 decks +50% synergy
Thermopod
50% of 2 decks +49% synergy
Reckless Barbarian
50% of 2 decks +49% synergy
Mogg Mob
50% of 2 decks +49% synergy
Patron of the Arts
50% of 2 decks +49% synergy
Coercive Recruiter
50% of 2 decks +49% synergy
Archangel of Tithes
50% of 2 decks +49% synergy
Krenko, Mob Boss
50% of 2 decks +49% synergy
Skirk Prospector
50% of 2 decks +48% synergy
Terror of the Peaks
50% of 2 decks +48% synergy
Port Razer
50% of 2 decks +48% synergy
Delina, Wild Mage
50% of 2 decks +47% synergy
Orthion, Hero of Lavabrink
50% of 2 decks +47% synergy
Jaxis, the Troublemaker
50% of 2 decks +47% synergy
Atsushi, the Blazing Sky
50% of 2 decks +47% synergy
Rionya, Fire Dancer
50% of 2 decks +45% synergy
Zealous Conscripts
50% of 2 decks +44% synergy
Recruiter of the Guard
50% of 2 decks +43% synergy
Feldon of the Third Path
50% of 2 decks +43% synergy
Drannith Magistrate
50% of 2 decks +43% synergy
Adeline, Resplendent Cathar
50% of 2 decks +42% synergy
Ragavan, Nimble Pilferer
50% of 2 decks +42% synergy
Ocelot Pride
50% of 2 decks +42% synergy
Combat Celebrant
50% of 2 decks +41% synergy
Grand Abolisher
50% of 2 decks +40% synergy
Imperial Recruiter
50% of 2 decks +38% synergy
Stoneforge Mystic
50% of 2 decks +38% synergy
Sun Titan
50% of 2 decks +33% synergy
Solemn Simulacrum
50% of 2 decks +27% synergy
Esper Sentinel
50% of 2 decks +22% synergy
Instants
Path to Exile
100% of 2 decks +44% synergy
Swords to Plowshares
100% of 2 decks +32% synergy
Angel's Grace
50% of 2 decks +48% synergy
Settle the Wreckage
50% of 2 decks +48% synergy
Mana Tithe
50% of 2 decks +47% synergy
Rebuff the Wicked
50% of 2 decks +47% synergy
Get Lost
50% of 2 decks +45% synergy
Deflecting Swat
50% of 2 decks +34% synergy
Enlightened Tutor
50% of 2 decks +31% synergy
Stroke of Midnight
50% of 2 decks +30% synergy
Teferi's Protection
50% of 2 decks +30% synergy
Chaos Warp
50% of 2 decks +16% synergy
Generous Gift
50% of 2 decks +10% synergy
Boros Charm
50% of 2 decks -6% synergy
Sorceries
Call a Surprise Witness
50% of 2 decks +49% synergy
Idyllic Tutor
50% of 2 decks +47% synergy
Wheel of Fortune
50% of 2 decks +47% synergy
Vanquish the Horde
50% of 2 decks +44% synergy
Gamble
50% of 2 decks +42% synergy
Farewell
50% of 2 decks +38% synergy
Blasphemous Act
50% of 2 decks +17% synergy
Utility Artifacts
Sword of the Paruns
100% of 2 decks +100% synergy
Umbral Mantle
100% of 2 decks +99% synergy
Staff of Domination
100% of 2 decks +98% synergy
Ashnod's Altar
100% of 2 decks +96% synergy
Magistrate's Scepter
50% of 2 decks +50% synergy
Thornbite Staff
50% of 2 decks +50% synergy
Nim Deathmantle
50% of 2 decks +49% synergy
Blasting Station
50% of 2 decks +49% synergy
Altar of Dementia
50% of 2 decks +49% synergy
Pearl Medallion
50% of 2 decks +47% synergy
Thousand-Year Elixir
50% of 2 decks +45% synergy
Helm of the Host
50% of 2 decks +41% synergy
Skullclamp
50% of 2 decks +36% synergy
Mithril Coat
50% of 2 decks +34% synergy
Swiftfoot Boots
50% of 2 decks +5% synergy
Enchantments
Mana Echoes
100% of 2 decks +100% synergy
Enduring Renewal
50% of 2 decks +50% synergy
Elemental Mastery
50% of 2 decks +50% synergy
Molten Echoes
50% of 2 decks +49% synergy
Splinter Twin
50% of 2 decks +49% synergy
Fervor
50% of 2 decks +49% synergy
Flameshadow Conjuring
50% of 2 decks +49% synergy
Determined Iteration
50% of 2 decks +48% synergy
Fable of the Mirror-Breaker
50% of 2 decks +48% synergy
Monologue Tax
50% of 2 decks +47% synergy
Warstorm Surge
50% of 2 decks +46% synergy
Aggravated Assault
50% of 2 decks +45% synergy
Goblin Bombardment
50% of 2 decks +44% synergy
Ghostly Prison
50% of 2 decks +43% synergy
Impact Tremors
50% of 2 decks +39% synergy
Land Tax
50% of 2 decks +38% synergy
Warleader's Call
50% of 2 decks +30% synergy
Smothering Tithe
50% of 2 decks +26% synergy
Utility Lands
Reliquary Tower
100% of 2 decks +83% synergy
Rogue's Passage
100% of 2 decks +69% synergy
Urza's Saga
50% of 2 decks +39% synergy
War Room
50% of 2 decks +38% synergy
Mana Artifacts
Sol Ring
100% of 2 decks +13% synergy
Cursed Mirror
50% of 2 decks +42% synergy
Talisman of Conviction
50% of 2 decks -3% synergy
Arcane Signet
50% of 2 decks -30% synergy
Lands
Inspiring Vantage
100% of 2 decks +87% synergy
Exotic Orchard
100% of 2 decks +73% synergy
Rugged Prairie
100% of 2 decks +66% synergy
Sundown Pass
100% of 2 decks +65% synergy
Spectator Seating
100% of 2 decks +56% synergy
Sacred Foundry
100% of 2 decks +56% synergy
Clifftop Retreat
100% of 2 decks +45% synergy
Battlefield Forge
100% of 2 decks +43% synergy
Command Tower
100% of 2 decks +14% synergy
Reflecting Pool
50% of 2 decks +47% synergy
City of Brass
50% of 2 decks +44% synergy
Wooded Foothills
50% of 2 decks +44% synergy
Flooded Strand
50% of 2 decks +43% synergy
Plateau
50% of 2 decks +37% synergy
Path of Ancestry
50% of 2 decks +34% synergy
Sunscorched Divide
50% of 2 decks +29% synergy
Elegant Parlor
50% of 2 decks +27% synergy
Myriad Landscape
50% of 2 decks +22% synergy
Arid Mesa
50% of 2 decks +20% synergy
Furycalm Snarl
50% of 2 decks +10% synergy
Temple of Triumph
50% of 2 decks +8% synergy
Boros Garrison
50% of 2 decks +7% synergy