Marneus Calgar, second only to the Primarch in prestige among Ultramarines, excels both as a battlefield warrior and a strategic commander. Although he typically dons an artificer-forged Gravis armour suit, he is also known to wear the venerable Armour of Antilochus. This relic Terminator armour, equipped with the Gauntlets of Ultramar, allows Calgar to move with remarkable agility, enabling him to integrate seamlessly into nearly any Ultramarines infantry squad deployed in combat.