A Stygian Knight is an animated suit of armour powered by dark magic. Often created for the role of bodyguards and heavy infantry, these constructs march unflinchly into enemy fire, ready to slay their master's enemies with their large axes.
Stygians Knights have been in use ever since ancient times, as shown during the Wind Age. the Stygian knights of this age were known for wearing more revealing armour, showing the hollowness inside and wielding long halberds, like those created to protect the Crypt of Mazzarin from intruders.
However, despite thier intimidating appearance, they are quite vulnerable to dwarven explosives as these can disrupt the magical connection holding the construct together, more so vulnerable then the more common Thrall.