Activate Phyrexian Altar by sacrificing Coati Scavenger, adding {B}.
When Coati Scavenger dies, Kaya's Ghostform triggers, returning Coati Scavenger from your graveyard to the battlefield.
When Coati Scavenger enters the battlefield, it triggers, returning Kaya's Ghostform from your graveyard to your hand.
Cast Kaya's Ghostform by paying {B}, attaching it to Coati Scavenger.
Repeat.

Infinite creature LTB

Infinite creature ETB

Infinite creature sacrifice triggers

Infinite death triggers

Infinite storm count

Kaya's Ghostform

Phyrexian Altar

Coati Scavenger

Cast Emptiness for its evoke cost by paying {W}{W}.
When Emptiness enters, its first ability and evoke ability trigger.
Holding priority, activate Phyrexian Altar by sacrificing Emptiness, adding {W}.
Resolve Emptiness's evoke trigger, failing to sacrifice it as it's no longer on the battlefield.
Resolve Emptiness's first trigger, returning Coati Scavenger from your graveyard to the battlefield.
When Coati Scavenger enters, it triggers, returning Emptiness from your graveyard to your hand.
Activate Phyrexian Altar by sacrificing Coati Scavenger, adding {W}.
Repeat.

Emptiness

Activate the land's cycling ability by paying {1} and discarding it.
When you cycle the land, Escape Protocol and Bone Miser's second ability trigger.
Resolve Bone Miser's ability, adding {B}{B}.
Resolve Escape Protocol's ability, paying {1} to blink Coati Scavenger.
When Coati Scavenger enters, it triggers, returning the cycled land from your graveyard to your hand.
Resolve the activated ability from step 1, drawing a card.

Infinite card draw

Near-infinite creature ETB

Near-infinite creature LTB

Land with Cycling Cost that can be paid using one colored mana

Escape Protocol

Bone Miser

Activate the land's cycling ability by paying {0} due to Fluctuator and discarding it.
When you cycle the land, Escape Protocol and Surly Badgersaur trigger.
Resolve Surly Badgersaur's ability, creating a Treasure token.
Activate the Treasure token by tapping and sacrificing it, adding (1).
Resolve Escape Protocol's ability, paying {1} to blink Coati Scavenger.
When Coati Scavenger enters, it triggers, returning the cycled land from your graveyard to your hand.
Resolve the activated ability from step 1, drawing a card.

Fluctuator

Surly Badgersaur

Activate White Lotus Tile by tapping it, adding at least {U}{U}{U}.
Activate Mind Over Matter by discarding Coati Scavenger.
Hashaton triggers, causing you to pay {2}{U} to create a tapped token copy of Coati Scavenger that is a 4/4 Zombie.
When the Coati Scavenger token enters the battlefield, it triggers, returning Coati Scavenger from your graveyard to your hand.
Resolve the Mind Over Matter ability, untapping White Lotus Tile.
Repeat.

Combos with "Coati Scavenger"