Animation Module + Intruder Alarm + Cathars' Crusade

Animation Module
Intruder Alarm
Cathars' Crusade

Requires
Animation Module must be on the battlefield. Intruder Alarm must be on the battlefield. Cathars' Crusade must be on the battlefield. Creatures you control can tap to produce at least 1. You have a way to cause a creature to enter the battlefield without a -1/-1 counter on it.
Steps
  1. Cause a creature to enter the battlefield.
  2. When the creature enters the battlefield, Intruder Alarm and Cathars' Crusade trigger.
  3. Resolve the Intruder Alarm trigger, untapping all creatures.
  4. Holding priority, activate a mana-producing creature by tapping it, adding at least 1.
  5. Resolve the Cathars' Crusade trigger, putting a +1/+1 counter on each creature you control.
  6. Animation Module triggers for each counter placed.
  7. Resolve all but the last trigger, choosing not to pay.
  8. Resolve the final trigger, causing you to pay 1 to create a 1/1 Servo artifact creature token.
  9. Repeat from step 2.
Results
Infinite creature tokens. Infinite ETB. Infinite mana creatures you control can produce. Infinite untap of all creatures. Infinite +1/+1 counters.

Cayth, Famed Mechanist
0.26% of 1161 decks 3 decks
Gnostro, Voice of the Crags
0.18% of 553 decks 1 decks
Optimus Prime, Hero
0.03% of 3392 decks 1 decks
Dr. Madison Li
0.03% of 3764 decks 1 decks
Falco Spara, Pactweaver
0.02% of 4670 decks 1 decks
Zinnia, Valley's Voice
0.02% of 5184 decks 1 decks
Derevi, Empyrial Tactician
0.01% of 7175 decks 1 decks
Urtet, Remnant of Memnarch
0.01% of 13383 decks 1 decks
High Synergy Cards
Anim Pakal, Thousandth Moon
67% of 6 decks +58% synergy
Top Cards
Ashnod's Altar
60% of 10 decks +52% synergy
Impact Tremors
50% of 8 decks +41% synergy
Path to Exile
50% of 10 decks +5% synergy
Swords to Plowshares
50% of 10 decks -13% synergy
Steel Overseer
40% of 10 decks +38% synergy
Urza, Lord High Artificer
40% of 10 decks +37% synergy
Etherium Sculptor
40% of 10 decks +34% synergy
Enlightened Tutor
40% of 10 decks +22% synergy
Arcane Denial
40% of 10 decks +21% synergy
Creatures
Urza, Prince of Kroog
38% of 8 decks +34% synergy
Lae'zel, Vlaakith's Champion
33% of 9 decks +30% synergy
Palladium Myr
30% of 10 decks +28% synergy
Myr Battlesphere
30% of 10 decks +28% synergy
Thought Monitor
30% of 10 decks +27% synergy
Instants
Negate
30% of 10 decks +7% synergy
Sorceries
Fabricate
30% of 10 decks +24% synergy
Utility Artifacts
Panharmonicon
30% of 10 decks +26% synergy
Skullclamp
30% of 10 decks +17% synergy
Enchantments
Goblin Bombardment
38% of 8 decks +31% synergy
Intangible Virtue
30% of 10 decks +25% synergy
Utility Lands
Archway of Innovation
60% of 5 decks +55% synergy
Academy Ruins
40% of 10 decks +35% synergy
Buried Ruin
40% of 10 decks +35% synergy
Inventors' Fair
30% of 10 decks +26% synergy
Rogue's Passage
30% of 10 decks +11% synergy
Reliquary Tower
30% of 10 decks +1% synergy
Mana Artifacts
Sol Ring
100% of 10 decks +15% synergy
Arcane Signet
90% of 10 decks +18% synergy
Talisman of Conviction
50% of 8 decks +27% synergy
Talisman of Creativity
50% of 8 decks +21% synergy
Talisman of Progress
40% of 10 decks +18% synergy
Azorius Signet
40% of 10 decks +14% synergy
Boros Signet
38% of 8 decks +14% synergy
Izzet Signet
38% of 8 decks +9% synergy
Lands
Command Tower
80% of 10 decks +6% synergy
Mystic Monastery
50% of 8 decks +24% synergy
Sulfur Falls
50% of 8 decks +20% synergy
Exotic Orchard
40% of 10 decks +5% synergy
Hallowed Fountain
40% of 10 decks -1% synergy
Raugrin Triome
38% of 8 decks +11% synergy
Clifftop Retreat
38% of 8 decks +10% synergy
Glacial Fortress
30% of 10 decks +5% synergy
Sea of Clouds
30% of 10 decks +4% synergy