Koloss Hemalurgic Spikes

In the Mistborn series, Koloss Hemalurgic Spikes emerge in 'The Hero of Ages' as the sinister mechanism behind the creation of the hulking, blue-skinned koloss, where small spikes are driven into human victims to steal Preservation's power and bind their loose flesh. These spikes reveal the koloss's tragic origin as transformed humans, dependent on Hemalurgy for their monstrous existence. Though not revisited in later books, this discovery underscores the deep interplay of Shards and Allomantic arts, marking a pivotal evolution in understanding Hemalurgy's role in Ruin's designs.