Secret of Pedigree

{{Noble_Phantasm {{Nihongo|Secret of Pedigree: Helmet That Conceals Infidelity|{{Ruby|不貞隠しの兜|シークレット･オブ･ペディグリー}}|Shīkuretto obu Pedigurī: Futei Kakushi no Kabuto}} is the helmet of Mordred that was she was told to wear at all times in order to keep her identity and lineage a secret. It hides most of her parameters, even from her own Master, making it hard discern even her gender when coupled with her full body armor. Her basic parameters can be seen, but her personality as a Heroic Spirit, innate skills, and data on her Noble Phantasms are hidden and cannot be read.
 * image =
 * jname = シークレット･オブ･ペディグリー
 * title = Helmet That Conceals Infidelity
 * jtitle = 不貞隠しの兜
 * owner = Saber of Red

The helm can be removed at will, splitting in two down the middle and merging into her armor. This is required for the use of Clarent Blood Arthur, so she must reveal her face should she wish to utilize it.