Grachan

Grachan is a Hunter and an acquaintance of Morel.

Background
Very little is known of Grachan. During the course of his life, he became a Hunter and befriended Morel. At some point he also learned Nen. He was recently deployed to exterminate the Chimera Ants, but was defeated by Leol, who stole his ability.

Chimera Ant Arc
Leol manages to corner Morel in an underground church and fights him using the Hatsu he stole from Grachan, much to the Sea Hunter's fury, as he recognizes it. The two talk briefly about Grachan while fighting, with Morel accusing Leol of being a thief and the Squadron Leader calling him one-sided and mistaken, since it is only self-defense to fight off who comes to kill him and highlighting that he is just borrowing the ability. Following Leol's death at the end of the confrontation, Grachan returns in possession of his ability.

Abilities & Powers
Riakke has all the benefits granted by his status as a Hunter.