Truth Be Told

You attempt to reshape another creature's perception of you. Your target perceives everything you tell them as the truth. When you tell a lie the must make a wisdom check at disadvantage, with the DC varying based on how preposterous the lie is at your DM's discretion. If they fail, the spell continues as followed. If they succeed, they can make an insight check to tell your lie, and then remove their disadvantage for future lies, if they succeed again, they can make another insight check, and have advantage on the for future lies, if they succeed the check for the 3rd time, the spell ends.

While this effect lasts, only you can benefit of it. The target will believe the lie you told them if anyone else says it, but only after you had, or else the effect is null.

You may cast the spell on a creature that doesn't understand your language, but will have no effect if you speak in a language it doesn't understand. If cast at a higher level and shared with a creature, they may use the effect if they can use a language the creature understands.

Just because a creature believes your lie, does not mean evidence shown cannot change their mind.

A magic absorption, immunity or nullification spell can end this effect.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can increase the amount of people who are effected and can benefit off this spell increases by 1 for each slot level above 1st.