Although this is a fairly brief outline, and I don't really break down material costs and crafting time, something that would be more important for a campaign, here is the system I developed for crafting poisons. This is not necessarily a bad thing, but having enough DM experience to know how hard checks should be while still allowing for players to make things that are useful is something not everyone has. They have access to nearly any kind of resources and level 20 characters, so I'll see what the rules are in the DMG and Xanathar's and let the player know what he can do.' Alas, there are next to no rules for actually creating poisons, assuming that everything is going to be left up to the DM. For example, a suit of plate armor (market value 1,500 gp) takes 300 days to craft by yourself.Īs I was preparing for a one shot, a player of mine asked about making poisons. If something you want to craft has a market value greater than 5 gp, you make progress every day in 5-gp increments until you reach the market value of the item. The rules for crafting can be found in the players handbook.įor every day of downtime you spend crafting, you can craft one or more items with a total market value not exceeding 5 gp, and you must expend raw materials worth half the total market value. Some poisons have super rare ingredients that you will have to harvest yourself from dangerous monsters. The components cost half the price of the poison. It's takes an amount of days equal to half the cost of the desired poison divided by 5.

Although poison ingredients might be black market only. Basically you need proficiency with the poisoners kit and you purchase the components at shops like you would component for other items. There are rules for crafting in the players handbook. Monstrous Compendium Vol 3: Minecraft Creatures

Poison antidote kit