Speak of the Devil

Your true name can be used to summon you over short distances, but only when you want to be, granting you the following benefit:

You called? When you hear a creature, that you can see, within 30 feet of you say your true name, you can use your reaction to teleport to any available space within 5 feet of the creature that you can see. If there is no room for you to fit in, then the teleportation fails. You can do this a number of times equal to your proficiency bonus per long rest.