Each item in Minecraft has a unique ID assigned to it, known as an item ID, this can be used in commands to spawn the item into the game. The item ID for harming potion in Minecraft is shown below:
When Minecraft updated to version 1.13, a changed dubbed "The Flattening" was introduced. In "The Flattening", numerical IDs and item data was removed, and some item IDs were changed to make them more logical - Harming Potion was one of the many items that had their IDs changed.
For this reason, if you're playing on a Minecraft version below 1.13 (1.12, 1.8, 1.7), you should use what we've named a legacy ID for this item. The legacy ID for harming potion is:
Harming Potion has a data value of 8204. You will need to add this to commands, along with its legacy item ID (below), to spawn it.
Items from earlier versions of Minecraft were assigned a numerical ID - a unique number to represent it.
This item also has a data value assigned to it. The data value is 8204 - you need to add this to the item ID (with a colon before) in order to spawn harming potion.
The numerical ID for Harming Potion is:
The Harming Potion item can be spawned in Minecraft with the below command. Cheats must be enabled before this will work.
When this potion is consumed (via holding right click), your character will take damage. The potion will give you the instant damage potion effect, which causes you to take 6 points (3 hearts) of damage.
|Legacy Item ID (1.12.2 and Below)||minecraft:potion|