"To sail through those waters is to offer oneself as tribute."
—Captain Hoyrik

Aesi, Tyrant of Gyre Strait

You may play an additional land on each of your turns.
Landfall — Whenever a land you control enters, you may draw a card.

Duskmourn: House of Horror Commander

The List

Commander Legends

You may play an additional land on each of your turns.
Whenever a land enters the battlefield under your control, you may draw a card.

Aesi's ability is cumulative with other effects that let you play additional lands, such as the one from Exploration.

A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.

A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.

Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them   on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).