#(once)

It isn't the League dialect, although most of the League does speak it.

He can't find any equivalent on Earth.

The magic users, when they hear him speak it, don't seem to realize he isn't speaking English and respond in kind.

Certain non-magic user heroes speak it as well, but...only those who have died in some way. The more they've died, the more fluent they sound when they speak in it.

The less they've died, the more choppy and stilted it sounds.

Jason, for instance, speaks this strange language like...like someone who only learned French in High School, and never pursued it outside of class.

Damian, however, is almost as fluent as Bruce.

It varies, but there's one thing Bruce knows for sure; this language is a boon.

If no one knows what he's saying to Robin, then they can do patrols safer.

honestly i’ve been there