Soul of Night

Soul of Night is a Hardmode crafting material dropped by all enemies killed in the Underground Corruption. This includes stray enemies not native to the biome, such as Goblins and Meteor Heads. Crafting all items, excluding the Boss-summoning items, requires 80 Souls of Night. One of each Boss-summoning item requires an additional 12 Souls of Night, for a total of 92.