Persist Creature does not have a -1/-1 counter on it.
You control your commander.
Steps
Activate
Altar of Dementia by sacrificing the
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Persist Creature.
When the
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Persist Creature dies, it triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to your commander's ability granted to it by
Master Chef.
Resolve the
Altar of Dementia ability, causing target player to mill cards equal to the
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Persist Creature's power.
Repeat.
Results
Infinite creature LTB.
Infinite creature ETB.
Infinite creature sacrifice triggers.
Infinite death triggers.
Infinite mill.
Infinite self-mill.
Metadata
In 1060 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).