Requirements
-Cauldron
-1 Bucket of Water
-1 Glass Bottle
-Brewing Stand
-1 Nether Wart
-1 Spider Eye
-1 Gunpowder (Optional) (To make the Potion throwable)
Step 1:
Go to your Cauldron and add a bucket of water to it and then take some water out by using a Glass Bottle.
Step 2:
Take your Water Bottle and take a Nether Wart to the Brewing Stand to make a Awkward Potion.
Step 3: Then take a Spider Eye and add it to the Awkward Potion on your Brewing Stand to make the Potion of Poison, this potion lasts for 45 Seconds, it works on players and on NPC's. It does not kill the NPC's it just harms them but it can kill a player.
OPTIONAL: To make the Potion throwable, add Gunpowder to the potion, it makes the potion throwable so it can poison mobs or players but it decreases the time of the potion too by making it 33 Seconds of the effect instead of 45.
