Toei Animation’s Digimon Adventure and Digimon Adventure 02 introduced dozens of digivolution forms, but only WarGreymon, Metal Garurumon, and Omnimon survive in mainstream Digimon nostalgia today.

Being born in the mid-1990s meant that I was the perfect age for the “mon” craze that permeated pop culture in the following years. I’ve always been deeply invested in Digimon, so the continued ...