Doubt

You point at a target and cause them to question everything the know and understand about their abilities. They must make a Wisdom saving throw equal to or surpassing your spell save DC to succeed.  On a successful save the spell fades and does nothing. On a failed save the caster convinces the target to use the attribute of the casters choosing to determine their attack modifier/ spell save DC for the duration of the spell.  The spell can be dismissed as a action