Gabumon: evolution tree

Names link to DigimonWiki/Fandom (Fandom community, CC BY-SA unless noted otherwise); artwork © Bandai, via the official Reference Book. Card labels show Level (+ X); edge colors show the digivolution trigger. AncientGarurumon is an ancestral (lore) relation, not a direct path. The Virus forms are drawn as one chain from BlackGabumon because each profile makes its form the Virus counterpart of the Vaccine one, not because a source shows them digivolving. Omnimon Zwart and Omnimon Alter-B are temporary forms caused by Black Digitron, drawn as Mode Changes. Omnimon Merciful Mode is a collective composition (Adventure tri.): Omnimon plus Phoenixmon, HerculesKabuterimon, Rosemon, Vikemon, Seraphimon and Magnadramon. Omnimon Alter-S, Alter-B and Zwart Defeat keep their official names here (Omegamon on DigimonWiki).