Ex Convict

The Ex Convict uses a strange set of skills that are very usefull in any form of prison, like using improvised poisons and escaping difficult situations.

Escape Artist

At 3rd level, you are an expert in escaping difficult situations. You gain proficiency in saving throws agains being grappled or restrained.

Improvised Poisoner

At 9th level, you know that sometimes you must improvise to survive. You gain the ability to make two special poisons.

Necrotic poison (injury): This poison is created by infecting a weapon with the bacteria of a dead body. A creature subjected to this poison must succeed on a DC 15 Constitution saving throw or be poisoned for 10 minutes. This poison must be harvested from any dead humanoid creature.

Feces poison (injury): This poison is most common in the prisons of the Sword Coast. A creature subjected to this poison must make a DC 19 Constitution saving throw, taking 2d6 poison damage on a failed save, or half as much damage on a successful one. This poison must be harvested from the feces of any humanoid, a willing humanoid can create these feces twice per long rest.

Additionaly, you gain expertise in the use of the poisoner's kit.

Thoughest Jailbird

At level 13, you believe yourself to be the thoughest, meanest jailbird to ever survive prison.

You gain immunity to poison and proficiency in Charisma saving throws. If you already have this proficiency, you instead gain proficiency in Strength or Constitution saving throws (your choice).

Harvester of Death

At 17th level, you have become too good at collecting your improvised poison.

Whenever you succesfully harvest necrotic poison or feces poison you harvest twice as much poison.

Additionally saving throws made agains your necrotic poison and feces poison are made with disadvantage.