Yggdrasill (Savers)

The portrayal of Yggdrasil in Digimon Savers is similar to how it was depicted in Digital Monster X-Evolution, however, there are subtle differences. Once again, Yggdrasil's primary function is to oversee the activities of the Digital World, being represented by a orb of light, making it appear as an omnipotent and omnipresent entity or "God" as such, it is referred to as the "God of the Digital World" (デジタルワールドの神 Dejitaru Waarudo no Kami) several times. Also, like before, Yggdrasil is once again protected by and have conmand over the Royal Knights. Unlike X-Evolution, Yggdrasil assumes it residence in the form of a gigantic tree, a reference to the "World Tree" in Norse Mythology, with optical fibers for roots. Also, it is summoned through the use of crystals that are located in a main chamber deep within the tree. Small versions and copies of these can also reflect attacks inflicted on them.

Yggdrasil is first mentioned in DS24 by Mercurimon, who during the time of the Digital Wolrd exploration, told of its existence to Daimon Suguru in attempt to form a peace between Digimon and humans. Suguru goes on a long quest to find Yggdrasil. Ten years later, it seemed that Suguru had found Yggdrasil with the aid of Bantyo Leomon, only to be shocked at the news of Mercurimon's deletion at the hands of Gizmon: XT through Kurata Akihiro. This incident convinced Yggdrasil that humans are a threat to Digimon, ordering the Royal Knights to seize Suguru. Yggdrasil takes over his weakened body as a vessel. After the defeat of Belphemon Rage Mode in the human world, Yggdrasil decides to destroy the Human World by dispatching the Royal Knights after Kurata's use of the space-time oscillation bombs causes the Digital World on the verge of colliding with the Human World, due to the space-time wall collapsing.

Masaru and the others travelled to the Digital World to discover the truth of what his "father" had become, Daimon Masaru fought him in DS45 until Bantyo Leomon arrived and revealed the story about his link with Suguru before sacrificing his life for Shine Greymon to take out Yggdrasil, still in Suguru's body. After the tree completely engulfs in fflames, Yggdrasil emerges as its new form. In this partiticular form, it has the ability to regenerate itself, and control vine-like wires to attack. In DS47, it began calling itself the "WIZ9000 Computer", a reference to the company WIZ inc. who have worked alongside Bandai in the past with V-pets. It was intentionally created to ovesee the Digimon evolution. This ended in failure because the humans interferred, hence the existence of DigiSoul and its manipulation, and as a final consequence it will execute a program based on Error 401, which refers to unautorization of access, and reset the computer systems. After Agumon underwent a pseudo evolution, he charged through Yggdrasil, forming a large hole. After this form of Yggdrasil was destroyed, a second form emerges in the appearance of a crystalline figure. Masaru punched it in the face shattering it completely. Yggdrasil was defeated by their combined efforts. After which, Yggdrasil decides to lay itself to rest and watch over everybody. It later restored Suguru's body back.