World Feeder

The World Feeder is a worm-like enemy that appears in The Corruption after reaching hardmode. It drops a small amount of Cursed Flames on death. They are somewhat rare, and are not as common as Devourers pre-hardmode. They resemble a smaller Eater of Worlds, but they do not split when a segment is destroyed, instead they simply die like any other worm. Despite being smaller than the Eater of Worlds the World Feeder does more than three times its damage. Loot is dropped from the head segment, so it can get stuck buried deep in blocks. It is perhaps the best source for Cursed Flame, since it always drops several of them.