Acidic Reaction

Upon striking you or an ally, the enemy suddenly feels a violent acidic reaction fill the air around them. Roll a CON saving throw, if pass, nothing will occur. If fail, the target takes 1d4 acid damage, and the first attack on that enemy is at advantage till the caster's next turn.

This spell’s damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).