Yggdrasil

Yggdrasil is a demon in the series.

History
Yggdrasil is a gigantic, mythical ash tree that plays a central role in Norse cosmology by linking the nine worlds together and also serves as the location where the Norse pantheon of deities hold court. Yggdrasil is also home to creatures such as Nidhoggr, Hresvelgr and Ratatoskr. The Norn goddesses Skuld, Urd and Verdandi are also said to live by a lake under the tree itself.

Appearances

 * Shin Megami Tensei II: Wood Race
 * Shin Megami Tensei: if...: Wood Race
 * Shin Megami Tensei: Strange Journey: Tree Race
 * Shin Megami Tensei IV: Tree Race
 * Shin Megami Tensei IV Apocalypse: Tree Race
 * Majin Tensei: Location
 * Giten Megami Tensei: Tokyo Mokushiroku: Jusei Race

Strange Journey
While the protagonist is exploring Sector Bootes, he is approached by a trio of Disir who ask him to challenge Yggdrasil, who at the point had siphoned the sisters' time-based powers, and was rampaging in an effort to consume everything. The protagonist was then teleported to fight the tree in Sector Eridanus' top floor; however, abusing his powers, Yggdrasil easily fended him off and brought him near death.

At that moment, Yggdrasil was hit by a blast that canceled out his time-based powers, forcing him to fight normally. A second opponent appeared and proceeded to beat Yggdrasil into submission. It turned out the protagonist was destined to survive the fight and reach Sector Eridanus at some point in the future, whence he would find the Norns who had been the Disir, who had by then retrieved their powers and allowed the future protagonist to return to the battle he had nearly lost and canceled Yggdrasil's time powers to allow the future protagonist to defeat Yggdrasil and return the stolen power to the past Disir, creating a closed ontological paradox in which Yggdrasil always lost.

Defeating Yggdrasil on Sector Eridanus unlocks him for fusion.

Shin Megami Tensei IV Apocalypse
Yggdrasil can teach Nanashi the Grand Tack, Dekaja and Tetrakarn skills through its Demon Whisper. It benefits from learning Gun, support and ailment skills.

Shin Megami Tensei: Strange Journey
Summonable Demon =

Boss =