Spore-Infested

The influence of a powerful force of nature has suffused your body and altered it from within. With your blood replaced by chlorophyll, whether you were alive or dead when this change occurred, the only thing animating you now is the spores spread within you.

Tainted Visage: Though these changes make you hardier, there is a visible oddness to you now that may put others off. You gain a +2 bonus to Constitution and a -2 penalty to Charisma.

Fungal Nature: As you become increasingly plantlike in nature, you cease to need many of the things humans do. You gain the Plant tag, no longer need to sleep, eat, drink, or breathe, and magic cannot put you to sleep. You cease to age, and cannot be magically aged. To take a long rest, you may spend 3 hours in an inert state but conscious of your surroundings. You are also permanently under the effects of the Speak With Plants spell and gain proficiency with Poisoner's Tools and Herbalism Kits, increased to Expertise if you already had it, but you suffer permanent disadvantage on Charisma (Persuasion) and Wisdom (Insight) checks made against humanoid creatures.

Spore Breather: The spores suffusing your lungs choke out poisons, but make you much more flammable. You gain immunity to Poison damage and to the Poisoned condition, but suffer vulnerability to Fire damage.

(Optional Replacer*) Toxic Touch: Your body begins to secrete harmful antigens, which you can store and unleash on your foes. Once per short rest, when you hit a creature with an attack, you may choose to force them to make a Constitution saving throw with a DC of 8 + your proficiency bonus + your constitution modifier, or your spell save DC, your choice, and suffer 1d12 Poison damage on a failed save and half as much on a successful one. This damage increases to 2d12 at level 5, 3d12 at level 10, 4d12 at level 15, and 5d12 at level 20. Spending one minute and making a successful DC 18 poisoner's tools check will allow you to harvest this toxin, consuming one use of it and storing it as a normal contact poison with the same damage and save DC.

 *Speak to your DM about replacing one or more of your existing racial features with this one.