Fuligin

The Fuligin (ぬばたまの) is one of Lexaeus's weapons in Kingdom Hearts 358/2 Days. It can be upgraded to Fuligin+.

Trivia
Nubatama no (ぬばたまの), is a five-syllable makurakotoba, a type of poetic epithet used in waka poetry. It refers to darkness, typically that of black hair or the night sky.