Symbol of stealth

NINJA

This shadowy warrior moves unseen and strikes silently in the night.

"Symbol of stealth" points to "NINJA" because ninjas are famously known for moving silently and unseen in Japanese culture. The word symbol hints at the idea of a ninja as an emblem of secrecy and covert action, not just the literal person. It’s a straightforward clue where the answer directly matches the reputation of ninjas in history and pop culture.