Dominion Saboteur as a copy of the creature with persist).
Notable Prerequisites
The creature with persist has a +1/+1 counter on it.
Steps
Activate
Bartolomé del Presidio by sacrificing
Dominion Saboteur.
When
Dominion Saboteur dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it. Choose to have it enter as a copy of the creature with persist with a +1/+1 counter on it.
Remove a +1/+1 counter and a -1/-1 counter from
Dominion Saboteur as a state-based action.
Resolve the
Bartolomé del Presidio ability.
Repeat.
Results
Infinite +1/+1 counters on a creature.
Infinite creature ETB.
Infinite creature LTB.
Infinite creature sacrifice triggers.
Infinite death triggers.
Metadata
In 0 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).