Batman Eternal #50
We're on the home stretch now.
This has to be a ruse, he can't seriously be the mastermind behind all this, can he?
He's not the mastermind, but he is the most successful villain so far, by working with Firefly, Signal Man, Ratcatcher and so on, he's the one who destroyed Gotham.
And they never fucking listed to Spoiler. This is like the opposite of War Games.