And the crossovers also just keep on coming!

(See here for the other half of the title gag)

Curse you, IDW, curse yooouu!
You're a factory that cranks out crossovers just to vex me!!

Super Secret Crisis War (2014)

Teaming up Powerpuff Girls, Samurai Jack, Dexter, Ben 10, and Ed, Edd n Eddy vs. their respective villains.

Phew, hoo boy...
Okay, previously..

Dexter met Blue Falcon and Dynomutt.
Blue Falcon and Dynomutt met the Scooby Gang.
The Scooby Gang met Johnny Bravo.
The Scooby Gang met Batman. (comics, and show)
The Scooby Gang met Harvey Birdman.
Harvey Birdman met Blue Falcon and Dynomutt.
Harvey Birdman met the cast of Johnny Quest.
Race Bannon and Johnny Quest have been on The Venture Bros.
Harvey Birdman met Fred Flintstone.
Fred Flintstone met The Jetsons.
Fred Flintstone met Billy & Mandy.
Billy and Mandy had General Skarr from Evil con Carne as a regular guest.

So, this puts, Powerpuff Girls, Samurai Jack, Dexter, Ben 10, Ed, Edd, n Eddy, Blue Falcon, Dynomutt, The Scooby Gang, Johnny Bravo, Harvey Birdman, Johnny Quest, The Venture Bros, The Flintstones, The Jetsons,  Billy & Mandy, and Evil Con Carne all into the same uber-canon as Batman.

No more! Please, no more! I'm OCD, if you make 'em, I gotta add 'em!