The Renegade Cultist Warriors are strong defensive and attacking troops. They can be obtained from different nobility contests and recruited once in the Fire Peaks.
Attack and defense
Renegade Cultist warriors are versatile in both attack against ranged soldiers and defense against melee, they are stronger than Veteran macemen and slightly better at defense than veteran spearmen, but not as strong (though by just 1 defense melee unit) as veteran halberdiers. The stats are in the image.