Ymir

Ymir was the original Jötunn, the first being that came into existence in the Nine Realms and the progenitor of all living beings.

Biography
Aurgelmir, also called Ymir, was the first sentient being to come into existence in the depths of Niflheim; birthed into conception from the drops of water that formed when the ice of Niflheim met the heat of Muspelheim within a great void of space. Aurgelmir was the father of all the giants; a male and a female grew under his arm and he soon later had a six headed son.

Powers

 * Cryokinesis: As the first Frost Giant, Ymir must have had great power over the element of ice, which was what apparently his Frost Giant children would later inherit from him.
 * Superhuman Durability: As the first Frost Giant believed to be created in existence in Norse Mythology, Ymir was very durable, as it took even Odin and his brothers to kill him, and that was not without a challenge of physical and magical abilities.
 * Immortality: Having lived for several ages, Ymir was immortal. Only the combined might of Odin and his brothers, who were known as the most powerful Aesir Gods of all time, was enough to truly end him. It is speculated that Ymir is still alive and has been revived through unknown causes, living on through the fragments of ice in the location of his death.