Digisoul

Digisoul (デジソウル Dejisouru) is a phenomenon by which an aura of energy, manifested within a person can invoke Digimon evolution (Dub: Digimon Natural Ability, initialled to D.N.A).

=Types of Digisoul=
 * Artifical Digisoul (人工デジソウル Jinzou Dejisouru): This is a sythethic form of Digisoul created by Kurata which was used to evolve Gizmon: AT to Gizmon: XT via the process of psuedo-evolution.
 * Dark Digisoul: In Digimon Next, this was used by Kahara Shou and Inui Yuu. A Dark Digisoul uses the power of the Dark Area to empower a Digisoul, allowing evolution. However, it has serious effects on the user, Inui Yuu being knocked unconcious and requiring medical aid after his use of the Dark Digisoul. Strangely, Kahara Shou seemed to suffer no ill effects from his use of the Dark Digisoul, although this may be becuase he was in a far better state of health than Yuu and had darker emotions to begin with. It was used by Shou to evolve his Peckmon into Yatagaramon to fight Atlur Kabuterimon and Geo Greymon, and by Yuu in his fury at Trailmon's death to evolve Gaomon into a black Gaogamon.