Ysgard

Ysgard is the outer plane of chaotic neutral (with some good tendencies). Located between Limbo and Arborea, it combines both beauty and madness into a heroic field of opportunity.

About

Valhalla

A dining room for the ages, Valhalla is an ornate and massive feast hall, constantly attended to by the souls of creatures who heroically fell in battle. Waking up in Valhalla is a once-in-a-lifetime event which only occurs if you have lost one of your greatest battles, but fought valiantly until the end. Valhalla's feast functions as a form of resurrection, and after enjoying time with other warriors and hearing their tales of combat, the soul is returned to it's vessel to begin it's journey again.

Demiplanes

While Ysgard itself remains in the outer planes, it is connected by a miraculous entity known as the "World Tree" (or Ysgardsil) that is rooted within the inner planes. By traveling via Ysgardsil, it is possible to visit Ysgard's demiplanes, which reside among the 8 inner-planes.

Midgardr

The demiplane of Midgardr resides in Quelmar.

Svartalfheimr

The demiplane of Svartalfheimr resides in The Underdark.

Helheimr

The demiplane of Helhemir resides in The Shadowfell.

Ljosalfeimr

The demiplane of Ljosalfeimr reside in The Feywild.

Muspelheimr

The demiplane of Muspellheimr resides in the Elemental Plane of Fire

Niflheimr

The demiplane of Neiflheimr resides in the Elemental Plane of Air. Niflheim was on the list of "possible convergence planes", noted for having the possibility of cross contamination with eldritch powers of the Underdark Old Ones.

Jotunheimr

The demiplane of Jotunheimr resides in the Elemental Plane of Water. This demiplane houses the realm of Aegir.

Vanaheimr

The demiplane of Vanaheimr resides in the Elemental Plane of Earth