Ponzi is a NPC Bulbasaur living in the PMD-B settlement of Almer (future!Alto Mare). He made his liveliness in the chaotic and warring outpost by renting accommodations for travelling or injured Pokémon to spend the night, then drugging them and pilfering their stuff. While his life is one of crime, he makes a point to keep his various hostels clean and tidy and well protected from the warring factions outside, up to and including paying gangs in the city to divert troublefar from his working locations. He is usually accompanied by his partner in crime Demeros.
Ponzi eventually has the misfortune of trying to scam Umbra's group.
As a NPC he is handled by SilentReverence.