Activate Umbral Collar Zealot by sacrificing the persist creature.
When the persist creature dies, its persist ability and Pitiless Plunderer trigger.
Resolve the persist creature trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Resolve the Pitiless Plunderer ability, creating a Treasure token.
When the Treasure token enters the battlefield, Builder's Talent's second ability triggers, putting a +1/+1 counter on the persist creature.
Resolve the Umbral Collar Zealot ability.
Repeat.
This ingenious loop turns a simple sacrifice outlet into an engine of endless resources by exploiting the interaction between death triggers and counter cancellation. As Umbral Collar Zealot feeds your creatures and artifacts to the graveyard, Pitiless Plunderer steps in to generate a fresh Treasure token every time a creature perishes. The arrival of that new artifact triggers Builder's Talent's level 2 ability, placing a +1/+1 counter on your creature to immediately cancel out any pesky -1/-1 counters it might be carrying, ensuring it can persist and return to the battlefield indefinitely.