Cavalier of Night in exile with a takeover counter on it.
The Master on the battlefield as a copy of
Cavalier of Night.
Mana Needed
available.
Steps
Activate
Evereth by sacrificing
The Master.
When
The Master dies, its second ability triggers, returning itself from your graveyard to the battlefield as a copy of
Cavalier of Night.
Resolve the
Evereth ability, putting a +1/+1 counter on it.
When
The Master enters the battlefield, its first ability triggers, doing nothing.
Repeat.
Notes
If you have a way to kill
Evereth and 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
Bracket tag
ExhibitionBracket 1+
For any deck
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.