Activate Bartolomé del Presidio by sacrificing Optimus Prime, Hero.
When Optimus Prime, Hero dies, its second ability triggers, returning it from your graveyard to the battlefield as Optimus Prime, Autobot Leader.
Activate Bartolomé del Presidio by sacrificing Optimus Prime, Autobot Leader.
When Optimus Prime, Autobot Leader dies, Luminous Broodmoth triggers, returning Optimus Prime from your graveyard to the battlefield as Optimus Prime, Hero with a flying counter on it.
Resolve both Bartolomé del Presidio abilities from steps 1 and 3, putting two +1/+1 counters on it.
Repeat.
Activate Bartolomé del Presidio by sacrificing Optimus Prime, Hero.
When Optimus Prime, Hero dies, its second ability triggers, returning it from your graveyard to the battlefield as Optimus Prime, Autobot Leader.
Activate Bartolomé del Presidio by sacrificing Optimus Prime, Autobot Leader.
When Optimus Prime, Autobot Leader dies, Luminous Broodmoth triggers, returning Optimus Prime from your graveyard to the battlefield as Optimus Prime, Hero with a flying counter on it.
Resolve both Bartolomé del Presidio abilities from steps 1 and 3, putting two +1/+1 counters on it.
Repeat.
Results
Infinite LTB.
Infinite ETB.
Infinite sacrifice triggers.
Infinite death triggers.
Infinite +1/+1 counters on Bartolomé del Presidio.