Twin to Andunecel, the Thorn of Dusk's Embrace, this magic weapon is one-half of a pair of swords once wielded by the twin heirs of an ancient elvish dynasty. Its delicate, single-edged blade is engraved with elvish script that glows golden yellow under the light of the sun.

• You gain a +1 to attack and damage rolls with this weapon.
• On a critical hit, the target is wrapped in a golden aura, granting advantage on the next attack roll against that creature.

Awakened

When a character awakens Rhunecel, apply the following changes to the item's traits:

• Increase the bonus to attack and damage rolls to +2
• As a bonus action, you can cause the runes engraved in this magic weapon to flare up and engulf the blade with radiant energy. This energy sheds bright light in a 15-foot radius and dim light for an additional 15 feet. This light is considered sunlight. While the weapon is aglow, it deals an extra 2d6 radiant damage to any target it hits. The glow lasts until you use a bonus action to dim it or until you drop or sheathe the sword.
• On a critical hit, you can cast the faerie fire spell from this weapon centered on the creature. While you are concentrating on it, the spell has no effect on you. Once you use this ability, you can't use it again until the next dawn.

Author's Note:
This magic item is known as a "Vestige of Divergence", a type of magic item found in the Explorer's Guide to Wildemount, which features the campaign setting used in Critical Role.

Proficiency with a Rapier allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Radiant, Crit: Your next ATK has Advantage, proficiency, Debuff, Combat, Finesse, Vex