Each Saga in Dominaria United has the new Read Ahead mechanic, which allows players to skip past the early chapters of a Saga. Its clear how tight the integration between storytelling and gameplay will be with Dominaria United, and this speaks to the team having the benefit of Magic's almost 30 years of existence
It works well alongside expensive commanders like Regna, the Redeemer and Vish Kal, Blood Arbiter who need protection
The Mirage design team (Bill Rose, Joel Mick, Charlie Catino, Don Felice, Howard Kahlenberg, and Elliot Segal) while working on Visions ended up creating enters-the-battlefield effects as well, but I hadn't yet seen the cards when I created Gravedigger
Three vamps from Innistrad Remastered got the treatment, including the ever-popular Edgar Markov
Then theres this trio, which I affectionately call what are you doing here? Theyre all cool cards in their own right, but probably in other decks