Not counting your opponents graveyard is certainly a downside, but costing half the mana is a big enough upside to make up for this
Abazan is probably the Tarkir Wedge for you
You either play a black midrange style deck to wait for those so you can get Tetzimoc in hand to do the reveal trick to do a board wipe, you know more midrangey things, or you toss in a bunch of tutors to make a more expensive way to do midrange from the command zone
Meanwhile, the words Lotus and Mox get to keep their esteemed track record
To sing a 10-cost Sing Together song you could: exert ten 1-cost characters, or one 10-cost character, or one 2-cost, one 3-cost, and one 5-cost
Werewolves will transform to their appropriate side to match the time of day, meaning if you play one while its already night youll get your werewolf right away instead of having to activate it first like Innistrads previous werewolves