For a while the two of you as partners worked against the criminals  but when Bruce left Gotham he promised it he would find more help, more allies more friends. " I mean, it's a big world. See if there's anyone else out there like us. Maybe start up a club or a league or something."

You didn't see the results until the Legion Of Horribles reformed, until the gangs formed alliances, and Edward and Oswald grew less afraid...  And Bruce was the Dark Knight.. 

In a flash they were disarmed by blurs as their vehicles were destroyed or thrown into the air,  tossed aside with single hits, and everything they worked so hard to steal was returned instantly after the GCPD was alerted.  Bruce stood with a smile as he watched, his plan working perfectly his friends helping every step of the way. 

"

I know it goes without saying. . but would you be interested in membership for our league?"