It is not a physically strong Stand, but its sheer numbers (500 units) and ability to deliver substances directly into the bloodstream make it incredibly lethal.
Josuke and Okuyasu find a discarded lottery ticket using Shigechi's Stand, . The ticket turns out to be a 5 million yen winner. Shigechi's Betrayal 19 : Shigechi's Harvest, Part 2
This episode fully showcases Harvest's destructive potential, proving that colony Stands are among the hardest to fight. It is not a physically strong Stand, but
A chase ensues through the streets of Morioh. Shigechi uses Harvest's massive numbers to overpower Josuke and Okuyasu, injecting alcohol directly into their bloodstreams to incapacitate them. The Resolution 19 : Shigechi's Harvest, Part 2