Mordenkainen's Lost Notebook
6-level Evocation
Make a melee spell attack to set up agonizing vibrations within the body of your target. If you hit, the target is paralyzed for the duration of the spell. At the end of each of its turns, the target can attempt a Constitution saving throw to lessen this effect to poisoned for that round. A target under the effect of painful echoes (q.v.) takes 1d6 psychic damage each time it fails the saving throw against resonating agony.