Warding Staves have a special ability called Warding Aura. When activated, the pirate emanates a calm blue aura that shields nearby pirates by boosting defenses. This ability can be toggled on and off by pressing the #7 key or by clicking on the icon. Unlike most skills, you do not have to wait for this to reload/recharge before turning it on or off.
There are three distinctive warding auras that staves have: Attack Aura, (Red); Defense Aura, (Blue); and Healing Aura, (Green).
When a pirate is attuned in the range of the Warding Aura, the pirate, as well as the offending attuner, will lose 1 health point. It is unknown if it is possible to Knock Out each other abusing this method