Barsal's After Image

You create an immobile illusory duplicate of yourself in an unoccupied space within range and store a spell within it, expending the spell slot as normal.  As a bonus action while the spell lasts, you can cast the stored spell from the duplicate.  When you do, you can also teleport into the duplicate's space.
If the spell ends without the stored spell being cast, it is lost.  The spell ends early if you care more than 100 feet from the duplicate.