Quite new to this game, so I was hoping someone could clarify something. When this card's effect activates, and I add a card like lava golem to my deck, is that card revealed to my opponent? If so, is this also true for cards like sangan or sonic bird?
There's also a very rare exception: If you can pick any card without any restrictions, you don't have to reveal it. But as soon as it have some restrictions (monster, spell, less than x ATK) you need to reveal them.
All of these cards were banned when this card came out in the OCG in mid 2013. The cards you missed are Sangan, Yata Garasu, Rescue Cat, and Tribe-Infecting Virus. To answer your Question, Sangan, Rescue Cat, and Tribe Infecting Virus aren't banned anymore, Yata Garasu is still banned because its still a great win condition, and Magical Scientist is banned because its the most broken card ...
At least you've gotten 3 Supers. All I've gotten is a Dark Spirit of the Silent. In fact, of the 10 or so Bakura cards I've had so far, the only new one I've gotten is 1 copy of the OTHER Tour Bus. >.>