Temporally Unstable.  Looks like you're as lucky as you are curious, though your arm is all weird now, but hey, maybe it does something cool?

Recall. As a bonus action, you can teleport up to 20 feet to an unoccupied space.  You must have occupied that space at some point during the current turn. You can use this ability up to as many times equal to your proficiency modifier. recharges on long rests

Chronal Distortion. Once per long rest, as a reaction, you can rewind time to negate any damage taken in the last round.