Put a +1/+1 counter on Lonis.
Lonis's first ability triggers, creating a Clue token.
When the Clue enters, Mm'menon triggers, putting a +1/+1 counter on Lonis.
Repeat from step 2.

Infinite Clue tokens

Infinite +1/+1 counters on a creature

Mm'menon, Uthros Exile

Lonis, Genetics Expert

Cast Animation Module by paying {1}.
When Animation Module enters, Mm'menon triggers, putting a +1/+1 counter on Crystalline Crawler.
Animation Module triggers. Holding priority, activate Crystalline Crawler by removing a +1/+1 counter from it, adding {1}.
Resolve the Animation Module trigger, causing you to pay {1} to create a 1/1 Servo artifact creature token.
When the Servo enters, Mm'menon triggers, putting a +1/+1 counter on Crystalline Crawler.
Repeat from step 3.

Infinite ETB

Infinite creature tokens

Animation Module

Crystalline Crawler

Cast Animation Module by paying {1}.
When Animation Module enters, Mm'menon triggers, putting a +1/+1 counter on it.
Animation Module triggers. Holding priority, activate Urza's first ability by tapping an artifact you control, adding {U}.
Resolve the Animation Module trigger, causing you to pay {1} to create a 1/1 Servo artifact creature token.
When the Servo enters, Mm'menon triggers, putting a +1/+1 counter on it.
Repeat from step 3.

Infinite +1/+1 counters on creatures you control

Infinite tapped creature tokens

Urza, Lord High Artificer

Activate Goblin Bombardment by sacrificing Lesser Masticore.
When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
When Lesser Masticore enters, Mm'menon triggers, putting a +1/+1 counter on Lesser Masticore.
Resolve the Goblin Bombardment ability.
Repeat.

Infinite LTB

Infinite sacrifice triggers

Infinite death triggers

Infinite damage

Lesser Masticore

Goblin Bombardment

Activate Warren Soultrader by paying 1 life and sacrificing the persist creature.
When the persist creature dies, its persist ability and Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel trigger.
Resolve the persist trigger, returning the persist creature from your graveyard to the battlefield with a -1/-1 counter on it.
Resolve the Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel trigger, causing target opponent to lose 1 life and you to gain 1 life.
Resolve the Warren Soultrader ability, creating a Treasure token.
When the Treasure enters, Mm'menon triggers, putting a +1/+1 counter on the persist creature.
Repeat.

Infinite colored mana

Infinite lifegain triggers

Infinite lifeloss

Infinite Treasure tokens

Persist Creature

Warren Soultrader

Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel

Activate Thopter Squadron's first ability by paying {1} and removing a +1/+1 counter from it, creating a 1/1 Thopter artifact creature token.
When the Thopter enters, Mm'menon triggers twice due to Panharmonicon, putting a +1/+1 counter on Thopter Squadron and Crystalline Crawler.
Activate Crystalline Crawler by removing a +1/+1 counter from it, adding {1}.
Repeat.

Thopter Squadron

Panharmonicon

Activate Warren Soultrader by paying 1 life and sacrificing the persist creature.
When the persist creature dies, its persist ability and Elas il-Kor's second ability trigger.
Resolve the Elas il-Kor trigger, causing each opponent to lose 1 life.
Resolve the persist trigger, returning the persist creature from your graveyard to the battlefield with a -1/-1 counter on it.
When the persist creature enters, Elas il-Kor's first ability triggers, causing you to gain 1 life.
Resolve the Warren Soultrader ability, creating a Treasure token.
When the Treasure enters, Mm'menon triggers, putting a +1/+1 counter on the persist creature.
Repeat.

Elas il-Kor, Sadistic Pilgrim

Deal combat damage using Ant-Man, triggering its ability, creating at least five Treasure tokens.
When the Treasures enter, Mm'menon triggers that many times, putting at least five +1/+1 counters on Sage of Hours.
Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
Repeat each turn.

Infinite turns

Lock

Ant-Man, Elusive Avenger

Sage of Hours

Put a +1/+1 counter on Berta.
Berta and Animation Module trigger.
Resolve the Berta trigger, adding {1}.
Resolve the Animation Module trigger, causing you to pay {1} to create a 1/1 Servo artifact creature token.
When the Servo enters, Mm'menon triggers, putting a +1/+1 counter on Berta.
Repeat from step 2.

Berta, Wise Extrapolator

Activate Xavier Sal by tapping it and removing a counter from a permanent you control, creating a copy of an artifact creature token you control.
When the creature token enters the battlefield, Intruder Alarm and Mm'menon trigger.
Resolve the Intruder Alarm trigger, untapping all creatures.
Resolve the Mm'menon trigger, putting a counter on it.
Repeat.

Infinite copies of creature tokens you control

Infinite mana creatures you control can produce

Infinite untap of creatures

Infinite untap of creatures you control

Xavier Sal, Infested Captain

Intruder Alarm

Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
Cast Sensei's Divining Top from the top of your library by paying {0} and removing a counter from a creature you control.
When Sensei's Divining Top enters, Mm'menon triggers, putting a +1/+1 counter on Mm'menon.
Repeat.

Search Results