Activate Lotus Petal by tapping and sacrificing it, adding ({W} magic symbol) .
Activate Tameshi by paying ({W} magic symbol) and returning any land to your hand from the battlefield, returning Lotus Petal from your graveyard to the battlefield.
When Lotus Petal enters the battlefield, Kodama of the East Tree triggers, putting a land from your hand onto the battlefield.
If the land enters the battlefield untapped and can produce mana, you may activate it by tapping it, adding at least ({1} magic symbol) .
Repeat.
Results
Infinite landfall triggers.
Infinite mana lands you control that enter the battlefield untapped can produce.