Dates: -8,406 to - DR (years)

Powers

Chromatic Blade

On command, the edge of the sword can activate a magic similar to chromatic blade. A fine line of chromatically shifting light forms along the blade edge when the power is activated.

Sharpness

The chromatic blade enhances the chance of severing on a natural roll as follows:

17-20 normal/armored
18-20 larger than normal size
19-20 solid stone or metal

  A natural 20 will allow the blade to shear through magical protections like Walls of Force or Stoneskin by temporarily absorbing the magic and turning it against itself, but in such cases only normal damage applies without the benefit of severing. The blade can be used to chop stone or metal objects, hacking through a foot of material every round. It can cut through softer materials even faster.   

The chromatic power of the blade can destroy color spray and prismatic spray spells that come in contact with it.

The edge of the blade can destroy one layer of a prismatic sphere or prismatic wall after which the chromatic and severing powers of the blade will be disabled for 24 hours. If a mighty blow is struck, the sword can cut through all layers of a prismatic sphere or prismatic wall but there is a 25% chance that the effects of those layers will affect the wielder all at once.

Prismatic Burst

On a critical hit, the blade flashes a brief blinding prismatic spray affecting anyone within 20', excluding the wielder.

Dancing Lights

At will, the sword can generate up to 4 orbs of dancing lights in any color desired. They can move up to 200 yards away before winking out.

Prismatic Spray

The tip of the blade can also emit a Prismatic Spray out to 70’, but doing so disables the chromatic and severing powers, and related functions for one month.  

Interactions

Chopping - When the chromatic blade is active, the sword can be used to chop stone, metal and wood objects, hacking through a foot of material every round. It can cut through softer materials even faster.   
Moonblade - The dancing lights can shed moonlight.
Dweomer Drinker - The blade can temporarily absorb magic and turn it against itself to enable cutting through stoneskin or walls of force.
Flame Tongue - Dancing lights can appear as flickering candle light. They can ignite very flammable items, including oil, parchments, and dry kindling. They shed sunlight to a radius of 2 feet capable of harming creatures damaged by sunlight.

Lathander's blessing - allows the dancing lights turn rosy red to deliver a rosetouch spell once per month magically mending broken objects or stanching wounds.

Selune's blessing - allows the dancing lights to behave as motes from Presper's Moonbow once per month. The wielder can choose how many dancing lights are converted to charged motes, which will shed moonlight once converted. Unused motes need not remain near the blade wielder who is immune to electrical attacks while any motes are active, or when the blade is shedding moonlight.

Appearance

Rune

Rainbow - on front.  

Feature

Cutting edge of the sword of 1/8 inch width has been turned to clear crystalline diamond with iridescent sheen. Near the very tip, above the slits, on each side of the adamantium spike are two small triangular chips of rainbow obsidian. Rainbow obsidian is an obsidian variety in which all colors save yellow are included in the black or gray base, sometimes in pronounced bands or spangles. Its magical use is as a pass stone for prismatic magics: It can pierce the various shells of such spells without ending them or suffering harm and can bring inorganic materials that it is fastened to with it. (In other words, a rainbow obsidian-tipped weapon could strike through a prismatic wall, but a living person or undead creature wearing a rainbow obsidian ring would not escape the normal effects of the prismatic magic.) 

Khilat Moonblade - Belsilvar