Plague Doctors are artificers specialized in the creation, use, analysis, and treatment of poisons and diseases. Though they are trained with treatment, their forte is actually the use and the treatment that they offer is usually for the purposes of learning more rather than out of the goodness of their heart or love of money. Plague Doctors are typically not actual doctors or trained physicians, but those that deal with and experience poisons and diseases first hand.

Tool Proficiency

When you adopt this specialization at 3rd level, you gain proficiency with poisoner's kit.

Plague Doctor Spells

Starting at 3rd level, you always have certain spells prepared after you reach particular levels in this class, as shown in the Plague Doctor Spells table. These spells count as artificer spells for you, but they don’t count against the number of artificer spells you prepare.

Plague Doctor Spells

Artificer Level	Spell
3rd	detect poison and disease, hunter's mark
5th	gentle repose, ray of enfeeblement
9th	stinking cloud, speak with dead
13th	blight, giant insect
17th	contagion, insect plague

Toxic Edge

Beginning at 3rd level, you can coat a blade with a potent magical poison. As a bonus action, you can coat a single melee weapon, that deals piercing or slashing damage and that you are holding, with this poison. That weapon deals an additional 1d8 poison damage when it hits, and all damage it deals is considered magical for the purposes of overcoming resistances and immunities. You can end this effect at any time you choose. You can only have one weapon coated with Toxic Edge at a time, if the weapon leaves your hands at anytime the effect immediately ends.

At 9th level, this poison damage increases to 2d8. At 15th level, this poison damage increases to 3d8.

Resilient Antibodies

At 5th level, your time around some of the worst poisons and diseases has caused you to develop a resistance to them. You have advantage on all saving throws against any poison or disease. You also have resistance to poison damage.

Recursive Poison

Starting at 9th level, whenever you deal poison damage with an effect that doesn't cause the poisoned condition, any creatures that took that poison damage must make a Constitution saving throw against your artificer spell save DC or become poisoned for 3 rounds.

In addition, any creature that has the poisoned condition because of you, takes 1d4 poison damage at the start of each of their turns as long as they continue to be poisoned because of you. This is in addition to any other damage or effects that may occur because of that poison.

Both of this feature's effects only work with spells or features that you have, or an item that you crafted.

Overcoming Envenomation

By 15th level, your poisons are so strong that they are able to overcome resistances and immunities. When you would deal poison damage to a creature that has resistance to poison damage you ignore it and deal full poison damage to that target. When you would deal poison damage to a creature that has immunity to poison damage, you treat them as if they have resistance to poison damage and deal half poison damage to that target instead of no damage. You can't use this feature against a creature that is a construct, elemental, or undead, nor can you use this feature against an object or structure.

This feature's effects only work with spells or features that you have, or an item that you crafted.