why not use flamethrower
he's part steel
and that's horribly weak to fire attacks
and don't under any circumstances use bug-type moves on him
the only cursing done regarding those should be at yourself for using a type that he's strong against... with both his types. bug only does 1/4 damage to steel/ghost types.
use fire, ghost, dark, or ground. those are the honedge line's weaknesses.