Curse of Maddening Itch

You string together words in a maddening gibberish touching on knowledge of the eldritch horrors of old. Targeting a creature within range, you infect the creature with an idea that they itch all over, but the spell does not make the skin itch, instead targeting the soul. The target will itch at its flesh until the spell effect ends. They take 1 psychic damage per hour that cannot be healed by anything other than a calm emotion, dispel, or wish spell. The creature will also be subject to a wisdom save every hour, on a failed save the target also scratches at its skin in vein causing 3d4 [roll]3d4[/roll] slashing damage on a failed save. (This damage can be healed normally), while itching the creature is compelled to disarm itself to use both hands to itch, and all attacks against the creature are made at advantage. At the end of each day the creature can attempt a Wisdom saving throw to end the spells effect on itself.