This set will be revealed on October 10 at the New York ComicCon, but the most likely outcome is that it's based on Teenage Mutant Ninja Turtles
Braids, Arisen Nightmare Braids, Arisen Nightmare is a very popular black aristocrats commander, being the automatic payoff for having junk you already wanted to get rid of
If your choice somehow ends up with an instant or sorcery card as the back face of Werewhat, Werewhat would be unable to transform away from its daybound side, so it would remain daybound even if it's night
Using cards like Crimson Wisps you can turn on further mana producers you find while you are going off to have even more mana
While they still have a lot going on, I think they're sleeker than the ones from March of the Machine
During gameplay, a player may choose to attack any other player, regardless of their position on the table, and can also choose to attack multiple different players during their attack phase