Gunpowder

Gunpowder is an item that is used for explosion-related recipes.

Creepers
Creepers can drop 0-2 pieces of Gunpowder upon death. Looting can increase this by one per level, with a maximum of 5 Gunpowder.

Ghasts
Ghasts can drop 0-2 pieces of Gunpowder upon death. Looting can increase this by one per level, with a maximum of 5 Gunpowder.

Witches
Witches can drop 0-6 pieces of Gunpowder upon death. Looting can increase this by three per level, with a maximum of 15 Gunpowder.

Trading
Wandering traders have $1/6$ chance to sell Gunpowder for an emerald.