Pia's Revolution is a punisher card but at least it's the right kind -- putting the mechanic on an enchantment where it costs zero mana means you can create situations that put a ton of pressure on your opponent. It'll also be pretty rad in Commander since you get to pick and choose someone who'll let you get the artifact back if that's what you want.
Disallow is fantastic. At 1UU this will see a ton of play. Definitely better than other 3 mana counters in Standard. Curious whether this stopping Emrakul's mind control will be relevant at any point. Also this gets a little closer to confirming a Baral card in this set.
Battle at the Bridge: Convoke for artifacts is a pretty sensible elaboration and a good "like Affinity, but way less broken" thing. Card is pretty boring. I did see the picture while my wife was playing FFXV and
Clash on the Big Bridge was playing on the car radio, though, so: synchronicity!
Dark Intimations is a nice use of a random 3-color card and some established mechanics to point at the next direction of the story without having to call it something too on the nose. I don't think almost anyone plays NBP even in Commander though so unless Bolas 2.0 in Amonkhet is super good not sure how much anyone will actually use it.
Where's story spotlight 1?