You are proficient in Nature and Insight. You learn the druidcraft and spare the dying cantrips. You can always tell if a creature or area has been touched by death within the last 24 hours, and you can identify natural plants and whether they are healthy, dying, or magically altered.

You can briefly touch the boundary of the Underworld. Once per day, you can cast speak with dead without material components. When you do, your voice carries an eerie, echoing tone, and nearby plant life withers slightly.

You spread the decay of the Underworld through another’s blow. As a reaction when an ally within 30 ft. of you hits a creature with a successful weapon attack, you can cause the wound to rot and fester. The target takes 2d6 necrotic damage at the start of each of its turns for 1 minute. At the end of each of its turns, the creature can make a Constitution saving throw, ending the effect on a success. You can use this ability a number of times equal to your proficiency bonus per long rest.