It reads, Whenever Lord of the Void deals combat damage to a player, exile the top seven cards of that players library, then put a creature card from among them onto the battlefield under your control. While mill isnt likely to be your main strategy in a deck filled with Demons, the exiling is definitely nice
Kitt Kanto, Mayhem Diva Kitt Kanto, Mayhem Diva gives you a Citizen token the moment it enters, but the real action starts at combat
You can use it to vanquish even Yiazmat [9-057L]
Counterspells and spot removals like Pongify and Rapid Hybridization round out the deck
Although control is seldom a top tier deck in the format, the three-mana Planeswalker is extremely well positioned right now given the plethora of Cascade decks, which he simply shuts down with his static ability