Bane

You told the druid that you needed to keep going. We don't have time to stop and study the foliage, They already have plenty of samples! You know we need to get back to the city so we can figure out what is plaguing this forest and its inhabitants, But just then you hear a snarl as you see the glint of an ax held by a bugbear. You haven't mastered Revivify yet and you need the druid so you quickly cast Bane.