Spanish Flag from the Battle of Rocroi

Origin
The Spanish Tercio was known throughout Europe as an invisible fighting force. But things starts to go downhill at the battle of Rocroi. at the end of the battle the allied German and Walloon regiment have routed leaving two spanish Tercio regiment holding the field. The French general then negotiated the regiment to surrender as if they were a garrison defending a fortress. they left the field with their weapons and flags.

Effects
When the flag is waved a phantom regiment would appear to protect the user from any harm. there in no known downside from this artifact.