Atium

Atium is one of the two God Metals of Scadrial, the metallic form of Ruin. It acts as one of the backbones of the Final Empire's economy.

It is exceptionally rare, only found in the Pits of Hathshin, and delevops slowly, over the course of centuries. Making it very valuable, and led to the usage of workers to mine the pits for Atium Geodes.

Allomancy
Upon injesting a bead, a Allomancer can see moments into the future, seeing misty shadows of the future movements of everything in sight, and it expands their mind to be able to process the large influx of information.

Atium Mistings are known as Seers, and are the rarest form of Misting. One that the teaching of the Church and the scarcity of Atium tricked people into believing nonexistent.

Due to this, Atium was considered a metal only usable by Mistborn. This does not, however, mean that Atium Mistings are natural occurences, for they were beings altered by Preservation's plan to defeat Ruin.

Feurochemy
In Feurochemy one can store their age, allowing them to retain their youth. It is through this that the Lord Ruler remained young for so long, storing youth in Atium Bands.

Hemalurgy
In Hemalurgy it is capable of stealing any Hemalurgic property, depending on where the spike is placed.