It is easy to die to the one drop that resolved or the man land you couldn't touch with a hand full of countermagic
Decks that operate almost entirely out of their graveyard, like Dredge, are probably happy enough to use Inquiry, but decks that used Looting for card selection and the ability to dig for a specific card should opt for something that gives them a bit more control over their fate
Upgrade 2 As I mentioned in the Endless Punishment blog, the decks are getting hard to make cuts for
Flying, double strike You have hexproof
As long as there is a Scrapheap Scrounger in your graveyard, your opponent is going to have a hard time stealing your creatures with their own The Scarab God
Protection spells that phase your permanents out are the best to dodge exile-based wraths, but giving the team indestructible works in most cases