How would Mini Bruce from your Antithesis of Magic AU react, after he debuts as Mockingjay (suck a clever name btw I cannot put into words the joy your works bring me), how would he react to messing up on patrol and Red Hood protects him but gets captured by the bats in the process?
So mini bruce escapes, but Jason gets captured, and mini Bruce doesn't know if they're putting him in Arkham (with the clown, the clown that haunts Jason's nightmares years later, they're gonna put him with the clown) or taking him to the Bat cave (dark and dank cave, they'll put him in a cell, it might be small enough to remind him of the coffin he had to claw his way out of), or worse, taking him to the justice league watchtower (somewhere mini Bruce cannot even hope of breaking into, somewhere he can't reach Jason, his only remaining family, he can't save him there) 🦇
He would raise hell on a city wide scale.
There would be a day of awful, mind numbing panic and desperation on Bruce’s behalf. A day in which he acts his age and just breaks down, crying and just wanting his dad Jason back and hug him and tell him everything is going to be alright because Jason promised he’d never leave him—
And then Bruce would methodically try to block out his acute mental distress and fall into a clinical, single minded focus.
Because they took Jason away and he’s going to get him back no matter what. Bruce will NOT let the bats win. They want war? They can bloody well have war.
And mini Bruce, taught personally by a theater kid, knows how to put on a show. Knows how to go absolutely batshit insane if he has to. It’s not even hard with what he knows is at stake here.
I can totally see our little gremlin plant several large scale bombs across the city. Even in civilian hubs. They’re not rigged to blow, but the Bats don’t know that. And Bruce would make sure to make an ultimatum that’s “either give him back or you’ll have the blood of approximately five hundred thousand people on your hands” and emphasize it with blowing up an abandoned apartment building on the outskirts of Diamond District. There aren’t any casualties, only a couple mild injuries resulting from debris, but the message is clear.
The bombs exist. And Mockingjay is more than willing to detonate them.