Veiled Compliment

You unleash a string of thinly veiled compliments with subtle enchantments at a creature you can see within range. If the target can hear you (though it need not understand you), it must succeed on a Wisdom saving throw or become extremely cocky and think so much of themselves that it hurts their brain and take 1d6 psychic damage and have disadvantage on the next attack roll it makes before the end of its next turn. If a nat 1 is rolled, the target takes twice damaged rolled and becomes so vain it begins to flex, spending the entire turn trying to show off. If the target succeeds it's save, the target can use it's reaction to respond with a veiled compliment of its own back at you as 10+(target's CHA modifier - your CHA modifier). If you succeed, you can then use your own reaction to reply again with another veiled compliment.

This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (5d6).