A witch in Minecraft.

A Witch is a hostile mob that spawns in the Overworld. They are typically found in Swamp biomes, as well as in Witch Huts. The Witch mainly attacks using splash potions, including Harming and Poison potions. They can also throw Weakness potions when being attacked, and slowness potions when the player is running away. Finally, Witches can regenerate health by drinking potions of instant health or regeneration, and potions of fire resistance when dropped into fire or lava. Witches can drop potions, as long as they were killed while they were drinking the potion.