Pokmon is yet to confirm any details regarding the U.S
Blast of Genius: There are a lot of good things you can do for six mana, and when you draw and discard and already have six mana in play, youre generally not interested in discarding the most expensive spell you have
Okay, now what's your favorite that's not an artifact creature
However, if youre the monarch, instead of milling two cards, those players have to mill ten instead
Lion Sash Retrieving and reanimating cards from the graveyard seems to be getting increasingly easy in Magic, so having instant-speed graveyard hate like Lion Sash can be a very handy tool
Mana Confluence Im fairly certain that any three-color deck in Standard that has any interest in aggression will play four of this card