Diavolo

Diavolo is a boss that spawns every 25 minutes, and if you kill him he drops Grave [1 percent] to make One More Horror.

While a majority of Diavolo's background is vague, some facts are made clear: born in an all-female prison during the summer of 1967, his mother claimed she had been pregnant for two years and there was no father, both within the jail and outside, that could've fathered her child. Because she still had years on her sentence, Diavolo was sent back to Sardinia to live with the priest in his mother's hometown. According to neighbors and friends, Diavolo was frank, yet timid and not too bright; he had also desired to be a sailor rather than a priest like his father wanted him to be. Jean Pierre Polnareff claims he was very likely abused as a child due to forming a split personality, but such an idea hasn't been confirmed.

Diavolo will go into it's 2nd mode when its very low and will get the power to erase time.

Trivia
Sounds are boosted if Diavolo uses time erase.

Time Erase can glitch and can't stop until everybody leaves the server.(update: this glitch has been fixed).