User blog comment:Parj789/set four isn't even out yet, and i'm asking about set 5 :3/@comment-839017-20141001221407

While I would HOPE for a Booster that included something like this...

"Includes support for Hero, Ancient, Magic, and Darkness Dragon Worlds."

It'll probably be more like this.

"Includes support for Dragon, Dragon, Dragon, Dragon, Darkness Dragon, and three little cards for Magic World."