Holborn is a Titan known primarily for being the leader of Holborn's Host, a collection of Guardians that went on risky expeditions to Mars. He has a genial demeanor.
- "The best defense is a good offense. We are both shield and sword."
- ↑ List of Grimoire Cards/Ghost Fragment: Titan
- ↑ Holborn's Host Mark
- ↑ Commando Type 0 (Helmet)