Sidar Uiman

Sidar Uiman is the legendary Master of the Sanguinary Guard for the ferocious and unforgiving Storm Angels Space Marine Chapter. Like his Chapter Master, Koratao, this figure of awe and legend, has also died on multiple occasions, only to rise once again upon wings of gold, to bring the wrath of the Great Angel down upon the enemies of Mankind. Clad in his artificer-wrought, golden Terminator Armour, he is carried aloft with his powerful relic jet pack, customised to carry the massive weight of a fully-armed Terminator, and wielding his deadly relic Encarmine Blade, the Angel's Blade and his master-crafted lightning claws, Sidar Uiman reaps a fearful tally when he takes to the field of battle.

Background
Sidar Uiman was one of the finest blades among the Wings of Salvaxes, and he was designated as the new head of the Sanguinary Guard for the newly created Storm Angels during their inception during the 26th Founding. Prior to his departure, he was inducted into his initial Chapter's Guard, discovering its secrets and practices. He then went to select among the Brothers manning the would-be Storm Angels. the nine warriors who would stand shoulder to shoulder with him, preserving the Chapter Master and the most important leaders when dispatched by the lord of Ionnacaira.

When he fell, a new Brother was inducted into the Sanguinary Guard and took his name. And as expected, he quickly rose to the rank of Master of the Sanguinary Guard. The legacy of Sidar Uiman was thus preserved and during the course of centuries of war, four more times did Sidar fall, only to rise again on golden wings. Clad in his mighty Terminator Armor, with extremely powerful jump-pack. Armed with the Angel's Blade, the men who have worn this vaunted name were all strong of body and mind, and none succumbed to the Twin Flaws.

The current Master of the Sanguinary Guard was elevated to this rank barely a year before the start of the Rubicon Primaris program, and for the first time in the Chapter's history, he voiced his opposition to Koratao's wish to order that the finest blades of the Storm Angels, their superior warriors, wouldn't undergo this change, not until the survival of the Chapter was assured. As of today, tensions still simmer between the Chapter Master and the leader of the Sanguinary Guard, but the latter still carry his duties without hesitation.