Assassin's Step

You temporarily wreathe yourself in mystic shadows, preparing to strike quietly and then vanish.  Until the start of your next turn, you and everything you are wearing and carrying become invisible, your steps make no sound, and your walking speed is doubled.

At the end of your current turn, you teleport to the space you occupied when you started the turn, or to an unoccupied space you can see within 60 feet of you, provided that it is in dim light or darkness.