Laxus's dad in Fairy Tail. He had build up as a relative of two important characters, had personal animosity towards his family, independent from the Balam Aliance guilds, his goal was the same as the one from the main villain and he had a subplot going on with Gajeel as a double agent. I imagine Mashima got bored of him at one point cause he discarded his character in the tournament arc and was never seen again despite not being taken out for good.