I haven't read past the first 10 issues, but I'm curious about something:

On Batman 001's card, he has a power called "Trained by the Demon."

Was there a retcon to Bruce training with Ra's al Ghul, or did Wizkids just mix in some of Batman Begins?

I don't know that they've explored Bruce's training in the New 52. I don't remember anything about it. Maybe they have some insight from the upcoming Batman Year One storyline. Wouldn't surprise me either way though.

Etrigan trained him. Dude can bust a rhyme while waxing a chump like a candle.

Oh man, I want to read that comic. Can we get Ghostface Killah to write that story arc?

If you hide in a bush,
You must not delay;
For whilst wasting your time,
Dickering with rhyme,
Your degenerate quarry speeds swiftly away!

I have no idea what counts and doesn't count.

The only specific scenes of Batman training early in his career so far (of what I've read) is in Batman and Robin when he has a flashback to when he's training with Henri Ducard.

I don't remember reading anything about any other training he has had, and I read all the Gotham titles.

However, Batman Zero Year is the next big Batman Arc, so maybe we'll get some explanation from there.

I saw the Ducard/Nobody stuff, but wondered if I had missed something.

Maybe Wizkids knows something DC doesn't!

I think it's just a mix up from the movie. I've been reading all the bat titles since the new 52 and there has been no mention of this. Also Batman has not dealt with Ra's in the new 52. He has only dealt with Talia but, that was carry over from the Batman Inc stuff before the change. Most of the mythos have been relatively unchanged.

Like someone mentioned about the upcoming Zero year that might shed more light. It's not like this would be the first time Wizkids did their own thing. Sinestro Corps Batman's bio is completely fabricated. The person that wrote the flavor text for the power probably only knows Batman from the movies.