Spreading Plague

When you make a melee weapon attack, you can take a -7 penalty to the attack roll. If the attack hits, the target is infected. At the start of its next turn, it takes 2d8 necrotic damage, and the disease ends.

However, when a creature takes this damage, every creature within 5 feet of it must succeed on a Constitution saving throw against your spell save DC or become infected themselves, taking the same damage at the start of their next turn and continuing the chain.

A creature that has previously been infected can be infected again. However, a creature that succeeds on its saving throw against this disease has advantage on saving throws against it for the next 24 hours.

You are immune to this disease.