Activate Mary Read and Anne Bonny by tapping it, causing you to draw a card and then discard an Island, Pirate or Vehicle card.
The discarded card is put on top of your library instead of into your graveyard due to Library of Leng.
Mary Read and Anne Bonny triggers, creating a tapped Treasure token.
When the Treasure enters the battlefield, Rook Turret triggers, causing you to draw a card and then discard an Island, Pirate or Vehicle card.
Repeat from step 2.

Infinite draw triggers

Infinite self-discard triggers

Infinite tapped Treasure tokens

Mary Read and Anne Bonny

Library of Leng

Rook Turret

Cast Library of Leng by paying {1}.
When Library of Leng enters, Rook Turret triggers, causing you to draw a card and then discard a land card.
The discarded card is put on top of your library instead of into your graveyard due to Library of Leng.
Surly Badgersaur triggers, creating a tapped Treasure token.
When the Treasure enters the battlefield, Rook Turret triggers, causing you to draw a card and then discard a land card.
Repeat from step 3.

Surly Badgersaur

Draw a card.
Nadir Kraken triggers, causing you to pay {1} to put a +1/+1 counter on Nadir Kraken and create a 1/1 Tentacle creature token.
When the Tentacle enters the battlefield, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Tentacle.
When Sword of the Meek enters the battlefield, Rook Turret triggers.
Holding priority, activate Krark-Clan Ironworks by sacrificing Sword of the Meek.
Resolve the Rook Turret trigger, causing you to loot.
Repeat from step 2.

Near-infinite ETB

Infinite looting

Near-infinite LTB

Near-infinite death triggers

Near-infinite sacrifice triggers

Near-infinite colorless mana

Near-infinite creature tokens

Nadir Kraken

Sword of the Meek

Krark-Clan Ironworks

Draw a card.
The Locust God triggers, creating a 1/1 Insect creature token with flying and haste.
When the Insect enters the battlefield, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Insect.
When Sword of the Meek enters the battlefield, Rook Turret triggers.
Holding priority, activate Krark-Clan Ironworks by sacrificing Sword of the Meek.
Resolve the Rook Turret trigger, causing you to loot.
Repeat from step 2.

Near-infinite creature tokens with haste

The Locust God

Put a +1/+1 counter on a creature you control.
Moss-Pit Skeleton triggers, putting it from your graveyard onto the top of your library.
Kheru Goldkeeper triggers, creating a Treasure token.
When the Treasure enters the battlefield, Rook Turret and Cloakwood Swarmkeeper trigger.
Resolve the Rook Turret trigger, drawing Moss-Pit Skeleton from your library, and then discarding it.
Resolve the Cloakwood Swarmkeeper trigger, putting a +1/+1 counter on it.
Repeat from step 2.

Infinite ETB

Infinite colored mana

Infinite Treasure tokens

Infinite +1/+1 counters on a creature

Moss-Pit Skeleton

Kheru Goldkeeper

Cloakwood Swarmkeeper

Put a +1/+1 counter on a creature you control.
Moss-Pit Skeleton triggers, putting it from your graveyard onto the top of your library.
Chalk Outline triggers, creating a 2/2 Detective creature token and a Clue token.
When the Clue and Detective enter the battlefield, Rook Turret and Cloakwood Swarmkeeper trigger.
Resolve the Rook Turret trigger, drawing Moss-Pit Skeleton from your library, and then discarding it.
Resolve the Cloakwood Swarmkeeper trigger, putting a +1/+1 counter on it.
Repeat from step 2.

Infinite creature tokens

Infinite Clue tokens

Chalk Outline

Combos with "Rook Turret"