Dark Lord Knight

"The Dark Lord Knight? Oh no. Looks like it's going to be a hand-on-hand combat between him and Yang Xiao Long now... but my money's on her."

--Su Ji-Hoon, Exeron and Striker Team Up!

The Dark Lord Knight is an undead knight with dark, stronger armor, and powerful gauntlets. He is very good at martial arts, archery and swordsmanship.

Fight
In the chapter, "Exeron and Striker Team Up!," the Dark Lord Knight fights against the Exeron Union, and after their defeat, Yang Xiao Long defeated him with her martial arts skills, and thus he served for Team RWBY, and he forgave the Exeron Union for that incident.

Going to Walkerville
After Team Magic School Bus victoriously fought so many invaders and Grimm and accepting to join Yang Xiao Long for the Bus' color, the Dark Lord Knight himself agreed to be friends to Ms. Frizzle, including her class and their parents, and would be accepted as their undead guardian like Grim from The Grim Adventures of Billy and Mandy.

Siege of Kassala
During the siege of Kassala, he would provide support with the Rah-Rah-Robot to help Arnold, Carlos, Wanda, Ralphie, D.A., Keesha and Yang Xiao Long during the battle.

Appearance
He look like a Dread Knight wearing Dracula's court clothes and have his own melee weapons, but still wear a Dread Knight armor.