Digimon Types/Groups/Attribute are split into 3 different kinds Virus, Data, and Vaccine. Each kind tops another kind like rock, paper, sisscors, but digimon style. Vaccine beats Virus, Virus beats Data, Data beats Vaccine. This is how it goes but most digimon can overcome the dis-advantege if they are strong enough.



Virus: Mostly evil digimon, not all of them are bad though.



Data: Regular digimon, some are evil.



Vaccine: Mostly good digimon, rarely evil.