Valmoira's Endless Torture

This spell, upon speaking your own greatest fears and weakness, creates a pure black blast of hatred, causing no damage to the target, but the target, may they be living, undead, construct, god, or anything, is instantly afflicted by a pain unlike any they've felt before, causing them to wretch and call out in agony. The targeted creature must make a DC 30 con save or the pain becomes so great that they would do anything to make it stop, while under the effects of this spell the target cannot kill themselves and cannot relieve themselves of the pain. The only thing able to Dispel this spell is the user speaking the word 'Amo'.