Thunder Warriors were large, greater in size than most [[Space Marine]]s. Even Despite physical deterioration, the few Warriors that survived the end of the [[Unification Wars]] were easily more than a match for an Astartes and , with one even the mighty outperforming a [[CustodesCustodian]] in single combatduring an engagement. They were made highly resistant to psychic attack, perhaps because of the sorcery they would regularly face during the [[Age of Strife]]. They had tremendous upper body strength that, when coupled with their early model of [[Power Armor#Mark_1_.22Thunder_Armour.22|power armor]], made them virtually unbeatable in close combat.{{Fn|2}}{{Fn|5b}}{{Fn|8}}