Dyadimon:Dyadicore

A DyadiCore is a type of nucleus that contains a Dyadimon's most important data. If that core is destroyed, the Dyadiimon is usually deleted, though some may survive as spirits. It's a very powerful energy source, with each Dyadimon possessing one. The exceptions are the Dyadimon Sovereigns; Ebonwumon, Baihumon, Zhuqiaomon, Azulongmon, and their master Fanglongmon each possess 12 which surrounds their bodies, usually in a ring formation.

Another dyadimon with multiple dyadicores happens when BanchoLeomon and Darkdramon DNA Dyadivolve to Chaosmon, where in such a case, instead of a fused dyadicore, the dyadicores of the 2 dyadimons remain separate.

In some Dyadimon, the Dyadicore has been corrupted and is called the “Dark Core”, usually when this happens the Dyadimon's Attribute changes to Virus.

The Dyadicores have amazing power, If one is given to a Dyagimon it can Dyadivolve to their Ultimate rank. Also, if one of the DyadiCores are gone from one of the Dyadimon Sovereigns then the Dyadic World's defenses will weaken, making the Dyadic World unbalanced.