Greatsword of Warning

(Requires attunement)
This magic weapon warns you of danger.
While the weapon is on your person, you have advantage on initiative rolls. In addition, you and
any of your companions within 30 feet of you
can't be surprised, except when incapacitated by something other than nonmagical sleep. The
weapon magically awakens you and your
companions within range if any of you are
sleeping naturally when combat begins.