Mindless Automaton without a -1/-1 counter on it).
Easy Prerequisites
You are able to kill
Arcbound Ravager such that it won't have a -1/-1 counter on it when it dies.
Steps
Activate
Arcbound Ravager by sacrificing
Mindless Automaton.
When
Mindless Automaton dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect.
Resolve the
Arcbound Ravager ability.
Repeat.
Kill
Arcbound Ravager.
When
Arcbound Ravager dies, its persist ability triggers, returning
Arcbound Ravager from your graveyard to the battlefield. It will have no counters on it due to its modular ability.
Arcbound Ravager dies as a state-based action due to having 0 toughness.
Repeat from step 2.
Notes
This combo will end the game in a draw if it isn't interacted with, as it creates a mandatory infinite loop.
Results
Draw the game.
Infinite +1/+1 counters on a creature.
Infinite creature ETB.
Infinite creature LTB.
Infinite death triggers.
Infinite creature sacrifice triggers.
Infinite artifact ETB.
Infinite artifact LTB.
Infinite artifact sacrifice triggers.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
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.