School: Chronomancy (Transmutation)
(Intended for use with a Chronomancer subclass such as the School of Temporal Magic)
You weave together threads of time to create a sword of solidified mist-smoke in your hand. This magic sword lasts until the spell ends. It counts as a simple melee weapon with which you are proficient. It deals 2d8 psychic damage on a hit and has the finesse, light, and thrown properties (range 20/60). In addition, when you use the sword to attack a target that has already been hit by it, you make the attack roll with advantage as a memory of the previous attack distracts the target. This advantage is lost once the spell ends.
If you drop the weapon or throw it, it dissipates at the end of the turn. Thereafter, while the spell persists, you can use a bonus action to cause the sword to reappear in your hand.