Black mana, as you might suspect, lets loose a range of nasty creatures, with names like Plague Rats and Demonic Hordes
Path of Ancestry is fantastic as a five-color land already, but being able to get some additional scry triggers along the way is going to help keep the deck flowing nicely throughout the game
The Gauntlet app combines the two wonderfully by giving me the data I need for the decks I love you better believe I know all the win percentages when I sit down at the table and throw down the Gauntlet (app)
From what I can tell, this method of using the card slinger does less damage to cards than any mechanical method
Getting two eggs from Irregular Cohort seems like it also might be a good choice
Obscuring Haze While certainly not as powerful as its siblings Fierce Guardianship and Deflecting Swat, Obscuring Haze is still very strong