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 have a chance of dropping up to 2 pieces of gunpowder upon death. Looting can increase this by one per level, with a maximum of 5 gunpowder.

Witches
Witches have a chance of dropping up to 6 pieces of gunpowder upon death. Looting can increase this by three per level, with a maximum of 15 gunpowder.

Trading
Wandering traders can sell gunpowder for an emerald.

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