Cosmic

Cosmic is the magic of stars. Created by the mixture of order and chaos, it is limitless in power and unbelievably dangerous. If wielded by an improperly protected mortal, even passive use could tear apart mind, body, and soul. Wielded correctly, however, cosmic can be used for anything from architecture to healing to even telling the future.
Mortal users of Cosmic are known as Seidr.

It looks as if a rift had been opened into deep space

Cosmic magic is both infinitely cold and impossibly hot, though can only burn/freeze a person when used offensively.

Any affected objects or people shimmer with a slight silver sheen.

The applications of Cosmic Magic are virtually limitless, with uses ranging from fast travel to architecture to basic combat.

Cosmic magic is extremely volatile. Any inexperienced mortal wielder is torn apart almost instantly when used.

Morality of cosmic magic is entirely reliant on the user.

Cosmic is commonly associated with people of high status within the Asgardian Empire.

Chaos, Order

At least some level of immortality must be had to withstand the inherent instability of Cosmic magic.

While self-taught users are possible, almost all users are brought to Valhalla to be taught as Seidr.