Discombobulating Smite

After you hit a creature with a melee weapon attack. The target takes an extra 6d10 psychic damage and must make an intelligence saving throw. On a failure the creature  subtracts 2d4 from all attacks, checks and saving throws.  On a success the creature takes half damage and doesn't subtract from their rolls.

* - Which you take immediately after hitting a target with a Melee weapon or an Unarmed Strike