Sword of Damocles

Target one creature within range at time of casting. A glowing weapon appears above the target and follows it doggedly for the duration, even if the creature teleports or crosses planar boundaries. At the start of each of the target's turns the sword strikes out causing 2d8 radiant or necrotic damage (your choice), or half on a successful Dexterity save. If the targeted creature dies the spell ends. A creature may only be targeted by one Sword of Damocles at a time.

At Higher Levels. When cast at a spell level above two, the damage increases by 1d8 for each additional spell level.