Asteria's Cosmos

The blade has grown old over the millenniums that is has existed and in such the blade has grown old and worn, and as it sits within the void keep its grown frail and fragile. upon touching the blade it turns to a pile of dust and shards leaving only the hilt remains. the golden hilt looks as if its brand new, and the sand themself are black grains of fine sand. the shards are long and sharp prismatic shards of the blade that once was, each engrained with the constellations that the Cards were originally created from.

A Legends Strike: You have a +3 bonus to attack and damage rolls made with this magic weapon.

The Sands of Time: as the wielder begins or finish their strike the blade erodes into the same fine black powder that it turned into, and as a bonus action the wielder controls the sand and thrusts it into the face of their opponent disorienting them. The enemy must roll a constitution saving throw (DC:18), on a failed save the creature has disadvantage on attacks and saving throws until their next turn. This action takes 2 charges.

The Shards of Stars: Upon the wielders command, as an action, the blade splits into the 10 glittering cosmic glass shards of the blade, and are sent flying at the wielders command. enemies must make a Dexterity saving throw (DC:16), on a failed save each shard deals 1d10 damage, on a successful save the creature takes half. This action takes 5 charges.

With True Intent: upon completing the blades mission and fulfilling the fate of  the ancient relic it grants its wielder one final reward, a singular wish.

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

Notes: Bonus: Magic, Upon attuning to this weapon the sand and shards that once were the blade reforms into its former cosmic glass blade., Damage, Combat, Versatile, Sap