Tytos's Echo

Sensing imminent danger, your patron intervenes in your favor to protect you from harm. Upon being attacked, or effected by a saving throw from a creature you can see, you vanish with an explosive force from your current plane of existence and appear in the plane of your chosen Patron (the spell fails and the casting is wasted if you were already on that plane.) Creatures within 10 feet of where you left must make a Dexterity Saving throw, taking 3d10 force damage on a failed save, or half as much on a successful one. At the start of your next turn, you return to an unoccupied space that you can see within 60 feet from the space you vanished from.