In Digimon Heroes there are five races: Beast ("Dragon" in-game, but I feel Beast is more appropriate), Knight, Nature, Holy, and Dark. The game works in a rock-paper-scissors kind of way.
- Beast is strong against Nature, but weak against Knight. Embodies Digimon similar to Greymon, Garurumon, etc.
- Nature is strong against Knight, but weak against Beast. Includes Digimon like Aquilamon, Arbormon, etc.
- Knight is strong against Beast, but weak against Nature. Includes machine and knight Digimon, such as Locomon and Knightmon.
- Holy is strong against Dark, but also weak to it. Includes fairy, angel, and otherwise holy-esque Digimon.
- Dark is strong against Holy, but also weak to it. Includes demon, fallen angel, and supernatural-esque Digimon.