Put a +1/+1 counter on Lonis.
Lonis' first ability triggers, creating a Clue artifact token.
When the Clue enters the battlefield, Yotian Dissident triggers, putting a +1/+1 counter on Lonis.
Repeat from step 2.

Infinite +1/+1 counters

Infinite Clue tokens

Lonis, Genetics Expert

Yotian Dissident

Activate Phyrexian Altar by sacrificing Lesser Masticore, adding one mana of any color.
Lesser Masticore dies, triggering its persist ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Lesser Masticore enters the battlefield, triggering Yotian Dissident, putting a +1/+1 counter on Lesser Masticore.
Repeat.

Infinite colored mana

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Lesser Masticore

Phyrexian Altar

Activate Ashnod's Altar by sacrificing Lesser Masticore, adding {C}{C}.
Lesser Masticore dies, triggering its persist ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Lesser Masticore enters the battlefield, triggering Yotian Dissident, putting a +1/+1 counter on Lesser Masticore.
Repeat.

Infinite colorless mana

Ashnod's Altar

Activate Altar of Dementia by sacrificing Lesser Masticore.
Lesser Masticore dies, triggering its persist ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Lesser Masticore enters the battlefield, triggering Yotian Dissident, putting a +1/+1 counter on Lesser Masticore.
Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Lesser Masticore's power.
Repeat.

Infinite mill

Infinite self-mill

Altar of Dementia

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, Yotian Dissident triggers, putting a +1/+1 counter on Yotian Dissident.
Repeat.

Near-infinite storm count

Infinite card draw

Infinite draw triggers

Falco Spara, Pactweaver

Sensei's Divining Top

Etherium Sculptor

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 Yotian Dissident trigger.
Resolve the Intruder Alarm trigger, untapping all creatures.
Resolve the Yotian Dissident trigger, putting a counter on it.
Repeat.

Infinite creature tokens

Infinite mana creatures you control can produce

Infinite copies of creature tokens you control

Infinite untap of all creatures

Xavier Sal, Infested Captain

Intruder Alarm

Cast Arcbound Reclaimer by paying {4}.
When Arcbound Reclaimer enters the battlefield, Yotian Dissident and Sarinth Steelseeker trigger.
Resolve the Yotian Dissident trigger, putting a +1/+1 counter on Arcbound Reclaimer.
Holding priority, activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting an artifact creature card from your graveyard onto the top of your library.
Resolve the Sarinth Steelseeker ability, putting the artifact creature card from the top of your library into your graveyard.
Unshakable Tail triggers, creating a Clue token.
When the Clue enters the battlefield, Yotian Dissident and Sarinth Steelseeker trigger.
Repeat from step 3.

Sarinth Steelseeker

Arcbound Reclaimer

Unshakable Tail

Activate Walking Ballista by removing a +1/+1 counter from it, dealing 1 damage to the creature with indestructible.
Sonic's second ability triggers, creating a tapped Treasure token.
When the Treasure enters the battlefield, Yotian Dissident triggers, putting a +1/+1 counter on Walking Ballista.
Repeat.

Infinite tapped Treasure tokens

Sonic the Hedgehog

Walking Ballista

Cast Arcbound Reclaimer by paying {4}.
When Arcbound Reclaimer enters the battlefield, Yotian Dissident and Golbez trigger.
Resolve the Yotian Dissident trigger, putting a +1/+1 counter on Arcbound Reclaimer.
Holding priority, activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting an artifact creature card from your graveyard onto the top of your library.
Resolve the Golbez ability, putting the artifact creature card from the top of your library into your graveyard.
Unshakable Tail triggers, creating a Clue token.
When the Clue enters the battlefield, Yotian Dissident and Golbez trigger.
Repeat from step 3.

Combos with "Yotian Dissident"