Zacama, Primal Calamity + Panharmonicon + Kor Skyfisher Combo

Panharmonicon on the battlefield.

Kor Skyfisher in hand.

Zacama in hand or in the command zone.

Lands you control can tap to produce at least . Lands you control tap for at least plus half the cost of your self-bouncing creature.

plus enough mana to pay for commander tax, if applicable available

Activate all mana-producing lands you control by tapping them, adding at least .

Cast Zacama either from your hand or from the command zone by paying plus commander tax, if applicable.

When Zacama enters the battlefield, it triggers twice.

Resolve the first trigger, untapping all lands you control.

Activate all mana-producing lands you control by tapping them, adding at least .

Resolve the second Zacama trigger, untapping all lands you control.

Cast Kor Skyfisher by paying .

When Kor Skyfisher enters the battlefield, it triggers twice, returning itself and Zacama from the battlefield to your hand.

Repeat.

Once you have infinite mana, you may use it to activate Zacama's other abilities.

Activate all mana-producing lands you control by tapping them.

Cast Zacama either from your hand or from the command zone by paying plus commander tax, if applicable.

When Zacama enters, its ability triggers twice through Panharmonicon.

Resolve the first Zacama trigger, untapping all lands you control.

Activate all mana-producing lands you control by tapping them.

Resolve the second Zacama trigger, untapping all lands you control.

Cast Kor Skyfisher by paying its mana cost.

When Kor Skyfisher enters, its ability triggers twice, causing you to return itself and Zacama to your hand.

Repeat.

Destroy all artifacts and enchantments opponents control

Infinite damage to creatures

Infinite creature ETB

Infinite lifegain

Infinite lifegain triggers

Infinite creature LTB

Infinite mana lands you control can produce

Infinite storm count