Talk:D Episode 13: It's Here! Duel Jaeger Revolted!/@comment-25600444-20160625000113/@comment-3974145-20160625124858

I think it's less that the cards simply "don't exist" but more like Baku's just now aware of every single card. Especially when dealing with a new Attribute or Archtype or World that Earth has never seen the likes of before.

He's saying right now Gao's current deck can't stand up to Jaegar, meaning he's obviously going to tune it with new cards he's only now going to discover existed. It's all about promoting the cards after all but considering how many cards their are even Bushiroad can't fully show them all off.