Tokens of the Plagued

You curse yourself with a magical plague, and instantly erupt in black skin sores (tokens) that mark the disease. You are afflicted with the poisoned state for as long as you maintain the spell, which ends after eight hours. You can use an action to dismiss the tokens at any time, ending the spell.

When you cast the spell you can select one of the following abilities for the duration of the spell, and once selected it can not be changed:

1: You can select a number of creatures, up to you spellcasting modifier, a minimum of one, within 5 ft of you to become afflicted by the disease, taking 1d10 necrotic damage and erupting in black skin sores. At the start of their turn they must make a Constitution saving throw against your spell DC or suffer a further 1d10 necrotic damage. On a successful save the skin lesions fade and they are immune to this spell for 24 hours.

Each time you use this ability you suffer 1d10 necrotic damage.

2: You can select one creature of your choice that begins their turn within 5 ft of you to be afflicted by the disease, taking 3d10 necrotic damage and erupting in black skin sores. At the start of their turn they must make a Constitution saving throw against your spell DC or suffer a further 1d10 necrotic damage. On a successful save the skin lesions fade and they are immune to this spell for 24 hours.

Each time you use this ability you suffer 1d10 necrotic damage.