Background
Sean Cassidy (yeah I'm sure he was named after the singer but I can't say for sure) is a mutant who is the cousin of Black Tom (who I made an entry about previously) and father of Siryn (who now also goes by the name Banshee). He is most famous for being a X-Men and a number of the derivative groups there of but he started his career as an Interpol officer and later reluctantly as a criminal. His worst crimes were committed when he was kidnapped by the mutant group Factor Three who put a bomb device on his head and forced him to do his bidding. That brought him into contact with the X-Men who eventually freed him.
Description
Sean is what you would call a tall, "handsome devil" with blue eyes and strawberry blond hair. I believe he was created as some kind of Sean Connery clone but I couldn't say for sure. He was created before my time.
As an X-Man he has worn a number of costume variants of the X-Men uniforms as well a green and yellow version of his own individual costume. Regardless of the costume he wore they all had the one same feature, a pair of "wings' similar to the flap of skin of a flying squirrel that permits aids him control his flight.
Powers
Banshee has a combination of superhuman vocal cords and "psionic" abilities making him a master of sound. He is capable of generating a "sonic scream" that can be used to do things like generate concussive force, shattering/disintegrate objects (referred to as his sonic lance) or even counter other sources of vibrations like when he prevented Moses Magnum from unleashing earthquakes powerful enough to destroy japan. He can also use his voice in non-violent ways like putting people in trances, causing disorientation or even knocking them unconscious.
His psionic powers let him use his powers for things other than just yelling. He can use them to direct sound below and behind him, propelling him through the air in controllable flight at speeds apparently up to the speed of sound. He can also warp sound around him creating a sonic force field although I have no idea how effective of a shield it is as I have no comic books with him using his powers like that. His psionic abilities also protect him from being harmed by sound and sonic attacks.
Whether he has a specialized hearing mechanism or it's actually part of his psionic repertoire he is capable of using his voice for sonar. He has used it to scan a large underground compound from the outside with enough clarity for him to point out a safe place for Nightcrawler to teleport to even though neither of them had been inside the compound before.
As Black Tom is immune to his powers, he is immune to Black Tom's in return.
If I was Banshee
Well I'd learn to sing for one thing if only to give myself more vocal versatility. I haven't seen Sean portrayed as being a singer of any type other than after he's had a pint or two not unlike myself. I'd like to sing well and use my superhuman vocal powers to bring some joy to people and even bring some "spiritual up lifting". Singing does more than entertain people. When done right it moves people and inspires them in fact as mentioned above sound affects the human mind in many ways that have nothing to do with actually interpreting the sound.
With the discovery of directed sound I would have another skill to learn. Using directed sound you can talk to one person in a direct line from you and only they could hear you. I watched a documentary on it. It's really wild to see some one react to a sound while every one else around them is oblivious. It's not only an effective way of stealth communication, it's also an effective way of directing your sonic attack directly at the target you want to hit.
Mostly I would be a signer. The rest of the powers would be for my personal amusement. I would get around using the flight power. I would flirt at a distance using directed sound or maybe even learn to use a sound or two to make people "feel good".
Despite this power set's potential for destruction I can't see myself using it that way. Yes I would help if I saw someone was in trouble but I would use it to help people feel better. Actually if I'm to believe some medical claims, sound can be used to help harmonize the body back into health. The claims are controversial but if they were true I would learn how to use the powers that way. Maybe open my own "Healing and Harmony Center".
Thanks for reading