Modi

Background
Modi was the brother of Magni, and the son of Thor.

Ragnarok
Modi and Magni fought in the defense of Asgard from the frost giant Surtyr and his army of Jotun giants. He and Modi were the only survivors. Modi and Magni rebuilt Asgard with the hammer Mjolnir.

The War Against Surtyr
Magni sent Modi to find the giant Ortyr, and to recruit him as a commander of the Asgardian forces. When he returned, the watcher, Heimdall had returned with an army of Vanir warriors from Vanaheim.

Modi and the rest of the Asgardian army arrived in Midgard to find the giant Surtyr. A battle erupted and many were killed. During the end of the battle, the Draugr king, Ferfeffnir attacked the armies and wreaked havoc across the battlefield.

After the battle, Ferfeffnir had been killed by Heimdall, and Surtyr was in full retreat.