Birthright for 4th Edition
Lost Sword of Harkenwold
Enhancement: Attack rolls and damage rolls.
Critical: +2d6 damage or +2d10 thunder damage vs. unbloodied creatures.
Property: Once per day, when the owner draws the Sword, the owner can project his voice as a thunderous shout in a close blast 40. Allies that can hear the owner and are caught in the blast gain a +2 power bonus to all defenses until the next time the owner takes damage.
Property: Once per encounter, the wielder of Sword can lose a healing surge to allow an adjacent ally to regain hit points equal to the owners surge value + 2.
Property: The Sword has a hidden compartment in the hilt and attempts to detect the compartment suffer a -10 penalty.
Power (At-will): Move Action. You can use the divine challenge (paladin 1) except that enemies that violate the mark suffer lightning instead of radiant damage.