**This was inspired by revisiting the infamous Black Death (thought to have caused the deaths of about 30% of the European population during its time) and the Plague Doctors (their roles including their unique appearance.) It wasn't meant to be creepy, it actually had a function especially their 'beaks'**
And on a side note, I also got reminded of the Plague Doctor from SCP Containment Breach. Ah yes, good times!
Quirk: Plague Doctor
Type: Emitter (with elements of Transformation)
Description:
Plague Doctor allows the user to generate, manipulate, absorb, and synthesize diseases, toxins, and pathogens. These bio-agents can be used offensively to incapacitate enemies, defensively to vaccinate and cure allies, or supportively to engineer performance-enhancing “symbiotic plagues.” The user can create tailored biological responses through direct contact, mist dispersal, or specialized delivery systems.
Abilities:
1. Infect Mode (Offensive Use)
The user can unleash real or custom-engineered diseases. Effects include:
Fever-inducing plagues
Paralytic nerve toxins
Hallucinogenic spore clouds
Necrotic skin viruses
Mental fog pathogens
Fatigue-inducing bioagents
Respiratory irritants
Impairment toxins (targeting balance, eyesight, etc.)
Delivery Methods:
Direct Touch – Skin-to-skin contact.
Airborne Release – Mist, spores, vapor.
Injection – Via tools or bio-syringes.
Bloodborne – Highly contagious and potent.
Saliva/Mucous – Biting, spitting, kissing.
Surface Contamination – Coats weapons, door handles, floors, etc.
Customization Parameters:
Symptom: nausea, fever, hallucination, fatigue, paralysis, confusion.
Trigger: immediate, delayed, environmental.
Scope: individual, group, wide area.
Potency: non-lethal to fatal (based on intent and control).
Diseases are reversible under the user’s control unless intentionally weaponized to kill.
2. Cure Mode (Support & Healing Use)
By physical contact or mist dispersal, the user can extract and neutralize:
Natural or engineered viruses/bacteria.
Poisons and venoms.
Chemicals, narcotics, and airborne contaminants.
Quirk-related toxins (e.g., Bakugou’s nitroglycerin sweat buildup).
Environmental hazards (e.g., smoke, radiation residue).
Storage: Extracted agents can be purified, weaponized, or analyzed later.
Field Sterilization: The user can cleanse infected or toxic areas in a limited radius.

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BNHA Quirks/Some Prompts
FanfictionThese are some random quirk ideas that you can use in your writing or to spark your own version! I may include the occasional one shot ideas too. Also if anyone uses the quirks or oneshot ideas to write something, then PLEASE FOR THE LOVE OF ULTRA...