The Shard of Light Short Sword from KoD p159

Minor Artifact: A +2 short sword, with a blade made of solid crystal that appears lit from within, as if sunlight had been captured in the stone.

Description:

Benefits: +2 magic. Against evil creatures, its magic enhancement bonus is +4. Against Negative Energy Plane creatures or undead creatures, the sword deals double damage (and x3 on a critical hit instead of x2).

The blade when unsheathed, gives off light as a torch (20-foot radius). Twice per day, the wielder can hold the blade overhead and call upon the Gods of Light. The shard of light begins to shed a bright yellow radiance that is like full daylight. The radiance begins shining in a 10-foot radius around the sword wielder and extends outwards at 5 feet per round for 10 rounds thereafter, to create a globe of light with a 60-ft radius. When the wielder lowers the blade, the radiance fades to a dim glow but persists for another minute before fading entirely.

Once per day, as a free action, the wielder can transform the blade into pure light, enabling it to ignore nonliving matter when it strikes. This effect lasts until the wielder’s next turn. Armor bonuses to AC (including enhancement bonuses to that armor) do not count against it because the weapon passes through armor. (Dexterity, deflection, dodge, natural armor, and other such bonuses still apply.) When transformed into solid light, the blade cannot harm undead, constructs, or objects.

Once per week, the shard of light can unleash a ray of sunlight as a 60-foot cone. Anything within the cone is revealed as if affected by a true seeing spell. The cone lasts for 1 mintue before fading away, taking the true seeing effect with it.

The shard of light is of good alignment and any evil creature attempting to wield it gains one negative level. The negative level remains as long as the sword is in hand and disappears when the sword is no longer wielded. This negative level never results in actual level loss, but it cannot be overcome in any way (including restoration spells) while the sword is wielded.

Aura: Strong abjuration; Caster Level: 18th.

Bio:

The Shard of Light Short Sword from KoD p159

Dragonlance: Age of Mortals MikeHill