Vicious Offensive

You smash into your opponent with such force that a nearby enemy can’t help but take notice. Activate this spell as a bonus action, and gain +1 to damage die until the end of your turn. In addition, if there is another enemy within 15 ft of an enemy you are doing damage to, it makes a constitution saving throw,  on a fail the next attack roll made against it has advantage, the effect lasts for 1 round.