Apocalyptic Survivor

Prerequisite: Wisdom 13, native to a wounded land or bordering territory, must be selected as a first level character.

You are the near-feral survivor of a corrupted apocalypse, staying hidden in the shadows of a wounded land or escaping into the questionable safety of the borderlands beyond.

You gain advantage on saving throws against disease and poison, and you have natural immunity to tainted plagues in your native wounded land. You can contract such diseases and even infect others, though you never manifest symptoms yourself. You are considered proficient with all improvised weapons, which deal 1d6 damage instead of 1d4.

You also gain a +1 bonus on Dexterity (Stealth) and Wisdom (Survival) checks; this bonus is increased to +2 against fiends, and to +4 against fiends within your native lands.