How do you get a potion of harming in Minecraft?
To get a Potion of Harming in Minecraft:
Brew Awkward Potions: Use Nether Wart on Water Bottles in a Brewing Stand.
Brew Potion of Poison: Add a Spider Eye to the Awkward Potions.
Brew Potion of Harming: Add a Fermented Spider Eye to the Potions of Poison.
For an improved version, add Glowstone Dust to make Potion of Harming II or Gunpowder to make it a Splash Potion of Harming.