Rider frowned in suspicion at Waver's confused explanation, and took a new look at the black knight.

The armor with the color of darkness shows no characteristic feature, and tells no clue on the lineage of the maker. —No, it isn't just that there are no details to see; it is all blurred.

It wasn't just Rider. Saber, Lancer and Irisviel had also noticed the same thing. No matter how carefully one would watch, he just wouldn't accurately perceive Berserker's figure.

Just like an off-focus photograph, the outlines of the black armor was always shifting, like a mist, and you would sometime see it double or triple. Somehow, the material seemed to be made out of a hallucination. It isn't just the vision that was affected; it also matches the clairvoyance of the Masters. That would be some sort of unique curse that fakes the person's true identity. It couldn't be a skill proper to the Berserker class.

"Looks like another troublesome enemy we have..."

- Fate/Zero: Act 4, Part 2