Rogues are often related mechanically to mill, so you can have an aggressive/tempo build with rogues attacking every turn and have mill as a subproduct
Hypergenesis, on the other hand, is much more over the top, almost certainly winning the game when cast as long as you have something big like Emrakul, the Aeons Torn to put into play
Castles are just like the secret dungeons you can uncover
Word of Command Whats Great About Word of Command: This is an amazing card, being able to use any card from your opponent's hand and only needing to spend two mana to do it makes it a broken effect that we haven't seen on a card since 11
Commander Pantlaza, Sun-Favored Whenever Pantlaza or another Dinosaur you control enters, you may discover X, where X is that creature's toughness
It's rumored that only a handful were ever printed, and only one signed copy has ever been shown to the public