Weapon (longsword), rare (requires attunement)
An ancient blade with a deep blue emerald set in the pommel. The gem reflects faint constellations even in darkness.
Magic Weapon. You gain a +1 bonus to attack and damage rolls made with this weapon.
Celestial Form (1/Long Rest)
As a bonus action, radiant wings of starlight unfurl from your back for 1 minute. While in this form:
• You gain a flying speed of 15 feet.
• You shed dim light in a 10-foot radius.
• Once per turn, when you hit a creature with Astralum, your wings lash outward and deal 1d6 radiant damage.
Guiding Star
When you hit a creature with Astralum, you may call upon its celestial guidance. You gain advantage on your next attack roll before the end of your next turn.
You can use this ability a number of times equal to your proficiency bonus, and you regain all uses when you finish a long rest.
Proficiency with a Shortsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Vex. If you hit a creature with this weapon and deal damage to the creature, you have Advantage on your next attack roll against that creature before the end of your next turn.
Notes: Finesse, Light, Vex