Batgirl swooped down from on on high, flipping as she released the line and landing with a flourish.  In front her a figure in black armor stood with one foot on the edge of the building, golden cape fluttering in the wind.

"Hey, Mothy, have you been standing here all night just waiting for someone to notice?  If you wanted to see me you could have just robbed a convenience store or something.  What's with the new duds?  Having a grim phase?  Goth night?  You just discovered Warhammer 40k?"

The figured turned his head, then spun around flourishing his cape as he walked towards her.  "I had hoped to commune with the Batman at this meeting, but in light of circumstance any fellow avenger of justice will have to do!"

"What."

"I am Killer Moth!  Fear not, Batwoman, for you do not stand in the presence of that rapscallious cretin you know by that name.  I have come to redeem this grand title through the righteous work of justice, bringing law to this lawless land.  Wherever the burning light of iniquity and crime shall glow, I shall descend upon it!"

"First, wrong Batchick.  Second, you realize that being a vigilante is serious business?  You can't just toss on a costume and start beating up criminals..."  She paused for a moment to remind herself that hypocrisy does not invalidate an argument and continued, "...you've got to at least have something to bring to the table.  Martial arts, gadgets, detective skills, superpowers, even just a mean right hook."

"I've got lots of stuff!"  He dug through his utility belt, fumbling with the pouches and unsure of where everything was.  "Lets see, I've got flashbangs, smoke bombs, moth dust grenade, grappling line, and cocoon gun.  Pretty sweet, right?"

Batgirl cocked an eyebrow as she looked over what he produced, most looked old and out-of-date, the grappling line was beginning to fray, and the cocoon gun was rusty and painted the traditional Killer Moth colors of purple, gold, and green.  "How old is this stuff?  Have you tested it?  Where did you even get all this?"

The figure calling himself Killer Moth shifted body language enough that Babs could tell he was beaming from pride through his helmet, "The original Killer Moth stole from society to enrich himself, the new Killer Moth steals from the original to enrich society!"

"And what happens when you run out?  I burn through this much equipment in a week, you can't just assume that Killer Moth will be around for you to steal from, that you can keep stealing from him."

Before he could answer, the roof access door flung open with a Bang! and Killer Moth briskly walked towards them while screaming, "This is the third time you've pulled this shit!"

The caped figure spun around and put himself between Batgirl and the approaching supervillain, "Fear not, Batgirl, Killer Moth is here to save the day!  If it's a title bout he wants, then let this be the day that the name Killer Moth belongs to the side of jus-"

With an unceremonious right hook Killer Moth landed a solid blow to the newcomer's faceplate, sending him flat on his back.  "Twice, this is twice I've had to kick your ass and you still don't get it.  Am I going to have to drop your ass out of a third story window again?  Is that what you want, two more shattered ankles?"

Batgirl stepped between them and put her hands on Moth's chest to push him away.  "Time out, I'm confused and kinda concerned."

With a sigh, Killer Moth backed off, "Couple years ago my ex empties out one of my stashes and sells everything to Calculator.  Calculator then sells my gear to wannabes looking to buy their way into the game, like this asshole.  So he buys one of my costumes and some gear and declares himself the new Killer Moth alongside two other assholes.  Deadshot runs them over with a car.  Once he gets out of the hospital for that he decides to reinvent himself as some grim edgelord villain called Blood Moth or something and spends 3 weeks trying, poorly, to kill me.  I throw him out a window.  Flash forward to yesterday, his sister finds that he's used her credit card to get himself a new costume made from Gambi in Central, she calls Gambi, Gambi calls me, I punch him, now you're caught up."  With that he shoved past Batgirl and ripped the helmet off the prone man, throwing over the side of the building.

"This isn't over!"  The now former new Killer Moth screamed through his broken nose as Killer Moth stripped him of his remaining gear, only for the villain to respond with a kick to his side.

"You want to be a supervillain?  Put on a Halloween costume and rob a bank like the rest of us.  You wanna be a superhero?  Put on a Halloween costume and beat up a drug dealer like the rest of them.  God don't pass out shortcuts in this business."