You control at least five basic lands, two of which must be Forests.
You have at least one card in hand.
You have enough mana to pay for commander tax, if applicable.
Steps
Activate all basic lands you control by tapping them, adding at least ({3} magic symbol) ({G} magic symbol) ({G} magic symbol) .
Activate Trench Behemoth by returning a basic land from the battlefield to your hand, untapping it and giving it hexproof until end of turn.
Repeat step 2 for each remaining basic land you control.
Cast Journey to the Oracle either from your hand or from the command zone by paying ({2} magic symbol) ({G} magic symbol) ({G} magic symbol) and commander tax, if applicable.
Resolve Journey to the Oracle, putting all land cards from your hand onto the battlefield, and then discarding a card to return Journey to the Oracle to your hand.
The lands enter the battlefield, triggering Aesi that many times, causing you to draw that many cards.
Repeat.
Results
Infinite card draw.
Infinite draw triggers.
Near-infinite landfall triggers.
Near-infinite magecraft triggers.
Near-infinite mana basic lands you control can produce.