Impostor Syndrome + Fear of Missing Out + Fervor Combo

All permanents on the battlefield.

Fear of Missing Out cannot be blocked and killed by an opponent

There are four or more card types among cards in your graveyard. An opponent cannot block creatures you control.

Declare Fear of Missing Out as an attacker, triggering its ability, causing you to untap it and to get an additional combat phase after this one.

Deal combat damage to an opponent using Fear of Missing Out, triggering Impostor Syndrome, creating a token copy of Fear of Missing Out that isn't legendary.

When the Fear of Missing Out token enters, it triggers, causing you to rummage

During your next combat phase, declare Fear of Missing Out and the Fear of Missing Out token as attackers.

The Fear of Missing Out token triggers, causing you to untap the nontoken Fear of Missing Out and to get an additional combat phase after this one.

Repeat from step 2.

Infinite self-discard triggers

Significant creature ETB

Significant creature LTB

Infinite rummaging

Significant death triggers

Significant creature sacrifice triggers

Significant combat damage

Significant combat phases

Infinite draw triggers