Swap!

You gain the ability to swap places with a pre-marked object at will, or as a reaction.

Set
As a Bonus Action choose an object of either Tiny or Small in size, you inscribe an invisible magical rune upon the object, marking it as your Swap! object. You can only have one object marked at a time and an object is unmarked if it is ever 20ft or further away from you.
As long as you have an item marked, you can take the Swap! action as a reaction.

Swap!
As a Bonus Action, or as a Reaction, a burst of white smoke surrounds you, as you and your marked object swap places.
Attacks that would have hit you are treated are treated as if they missed, inless they have homing (such as Magic Missile).

You can use either of these abilities twice, regaining all charges after a Long Rest.