Burrowing Falsehood

You launch an illusory assault at a creature within range. This can take the appearance of whatever you wish, such as a ball of fire, a crack of electricity, a thrown dagger or even a hurled rock, as long as it originates from you. The target must make an Intelligence saving throw. On a failed save, they take 3d6 Psychic damage and have disadvantage on their next save against an Illusion spell you cast within the next minute. On a successful save, they take no damage and have advantage on their next save against an Illusion spell you cast within the next minute.

At Higher Levels: The damage increases by 1d6 for each slot level above 1st.