Persist Creatures does not have a -1/-1 counter on it.
Steps
Activate
Evereth by sacrificing a
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Persist Creature that doesn't have a -1/-1 counter on it.
When the creature dies, its persist ability and
Long Feng trigger.
Resolve the
Long Feng trigger, putting a +1/+1 counter on the other
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Persist Creature.
Resolve the persist trigger, returning the creature from your graveyard to the battlefield with a -1/-1 counter on it.
Resolve the
Evereth ability.
Repeat.
Notes
If you have a way to kill
Evereth and ({1} magic symbol) ({BR} magic symbol) available, you can do so after putting a significant amount of +1/+1 counters on it to deal damage to each opponent using its second ability.
Results
Infinite +1/+1 counters on a creature.
Infinite creature ETB.
Infinite creature LTB.
Infinite creature sacrifice triggers.
Infinite death triggers.
Infinite damage.
Metadata
In 7 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).