Jadzi, Oracle of Arcavios // Journey to the Oracle | Multani, Yavimaya's Avatar

Cards

There are at least eight lands between the battlefield under your control and your hand, four or which enter untapped and can tap to produce at least ({4} magic symbol) .

({2} magic symbol) ({G} magic symbol) ({G} magic symbol) plus commander tax if applicable available.

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) plus commander tax if applicable, putting all land cards from your hand onto the battlefield, and then discarding
Multani to return Journey to the Oracle to your hand.
When the lands enter,
Tireless Provisioner triggers that many times, creating that many Treasure tokens.
Activate four Treasures by tapping and sacrificing them, adding ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) ({G} magic symbol) .
Activate at least four lands that enter untapped by tapping them, adding at least ({4} magic symbol) .
Activate
Multani's ability by paying ({1} magic symbol) ({G} magic symbol) and returning two lands to your hand.
Repeat step 4 at least once, and more times if desired.
Resolve all
Multani abilities, returning it from your graveyard to your hand.
Repeat.

You can repeat step 4 to bounce other lands, but you must bounce lands in multiples of two. All lands bounced this way will be placed onto the battlefield again by Journey to the Oracle.

This combo has been estimated to be Spicy (Bracket 3-4+).