Telos

The Master of the Iron Sky, known as Telos in most tongues, is a primordial who fell to the tundra of Vaasa during the Spellplague. He remains there, comatose, while the Warlock Knights mine what they call ironfell or "the iron" from his body. This material, which he regenerates quickly, is used by the Knights to fashion items and constructs they call shardsouls.